public SpatialContextResultDialog(MgSpatialContextReader reader)
: this()
{
_reader = reader;
_wktRW = new MgWktReaderWriter();
_agfRW= new MgAgfReaderWriter();
StringBuilder sb = new StringBuilder();
while (_reader.ReadNext())
{
MgGeometry geom = null;
if (_reader.ExtentType == MgSpatialContextExtentType.scStatic)
{
geom = _agfRW.Read(_reader.Extent);
}
sb.AppendFormat("Spatial Context{0}\tName: {1}{0}\tDescription: {2}{0}\tCoordinate System: {3}{0}\tCoordinate System Wkt: {4}{0}\tExtent Type {5}{0}\tExtents (if applicable): {6}{0}\tXY Tolerance: {7}{0}\tZ Tolerance: {8}{0}\tIs Active: {9}{0}{0}",
Environment.NewLine,
_reader.Name,
_reader.Description,
_reader.CoordinateSystem,
_reader.CoordinateSystemWkt,
_reader.ExtentType == MgSpatialContextExtentType.scDynamic ? "Dynamic" : "Static",
geom != null ? _wktRW.Write(geom) : "N/A",
_reader.XYTolerance,
_reader.ZTolerance,
_reader.IsActive());
}
textBox1.Text = sb.ToString();
_reader.Close();
}
//----------------------------------------------------------------------------------------
// �� �ܣ� ��Mapguide���ص�����ת��ΪKML
//
// �� �ߣ�
//
//
// �� �ڣ�2007.05.#
//
//-----------------------------------------------------------------------------------------
public String createMuniMarker()
{
StringBuilder outString = new StringBuilder();
MgGeometryFactory geoFactory = new MgGeometryFactory();
outString.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
MgFeatureService featureService = (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService);
MgResourceIdentifier resId = new MgResourceIdentifier("Library://MgTutorial/Data/WheatonMunicipalities.FeatureSource");
MgFeatureReader featureReader = featureService.SelectFeatures(resId, "WheatonMunicipalities", null);
outString.Append("<markers>");
MgAgfReaderWriter geoReader = new MgAgfReaderWriter();
while (featureReader.ReadNext())
{
String muniName = featureReader.GetString("MUNINAME");
MgByteReader byteReader = featureReader.GetGeometry("Geometry");
MgGeometry geo = geoReader.Read(byteReader);
MgPoint pt = geo.GetCentroid();
double x = pt.GetCoordinate().GetX();
double y = pt.GetCoordinate().GetY();
outString.Append("<marker lat=\"" + y + "\" lng=\"" + x + "\" info=\"" + muniName + "\" />");
}
featureReader.Close();
outString.Append("</markers>");
return outString.ToString();
}
public SpatialContextResultDialog(MgSpatialContextReader reader)
: this()
{
_reader = reader;
_wktRW = new MgWktReaderWriter();
_agfRW = new MgAgfReaderWriter();
StringBuilder sb = new StringBuilder();
while (_reader.ReadNext())
{
MgGeometry geom = null;
if (_reader.ExtentType == MgSpatialContextExtentType.scStatic)
{
geom = _agfRW.Read(_reader.Extent);
}
sb.AppendFormat("Spatial Context{0}\tName: {1}{0}\tDescription: {2}{0}\tCoordinate System: {3}{0}\tCoordinate System Wkt: {4}{0}\tExtent Type {5}{0}\tExtents (if applicable): {6}{0}\tXY Tolerance: {7}{0}\tZ Tolerance: {8}{0}\tIs Active: {9}{0}{0}",
Environment.NewLine,
_reader.Name,
_reader.Description,
_reader.CoordinateSystem,
_reader.CoordinateSystemWkt,
_reader.ExtentType == MgSpatialContextExtentType.scDynamic ? "Dynamic" : "Static",
geom != null ? _wktRW.Write(geom) : "N/A",
_reader.XYTolerance,
_reader.ZTolerance,
_reader.IsActive());
}
textBox1.Text = sb.ToString();
_reader.Close();
}
private void btnSelectDistrict1_Click(object sender, EventArgs e)
{
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
MgLayerBase districts = layers.GetItem("Districts");
MgLayerBase parcels = layers.GetItem("Parcels");
//Query the geometry of district 1
MgFeatureQueryOptions districtQuery = new MgFeatureQueryOptions();
districtQuery.SetFilter("Autogenerated_SDF_ID = 1");
MgFeatureReader reader = districts.SelectFeatures(districtQuery);
MgGeometry districtGeom = null;
MgAgfReaderWriter agfRw = new MgAgfReaderWriter();
try
{
reader.ReadNext();
MgByteReader geomAgf = reader.GetGeometry(districts.GetFeatureGeometryName());
districtGeom = agfRw.Read(geomAgf);
}
finally
{
reader.Close();
}
//Now use this geometry as the basis of our 2nd query
MgFeatureQueryOptions parcelQuery = new MgFeatureQueryOptions();
parcelQuery.SetFilter("RNAME LIKE 'SCHMITT%'");
parcelQuery.SetSpatialFilter(parcels.GetFeatureGeometryName(), districtGeom, MgFeatureSpatialOperations.Inside);
//Select the features
reader = parcels.SelectFeatures(parcelQuery);
MgSelectionBase selection = _viewer.GetSelection();
try
{
selection.FromXml(""); //Clear existing selection data
selection.AddFeatures(parcels, reader, 0);
}
finally
{
reader.Close();
}
//Because we manipulated the active selection outside the viewer
//We need to call UpdateSelection() to instruct the viewer to
//re-render the active selection. The "true" parameter instructs
//the viewer to raise the SelectionChanged event as well, so that
//subscribers like the Property Pane get updated as well.
_viewer.UpdateSelection(true);
_viewer.RefreshMap();
}
private void btnQueryDistrict1_Click(object sender, EventArgs e)
{
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
MgLayerBase districts = layers.GetItem("Districts");
MgLayerBase parcels = layers.GetItem("Parcels");
//Query the geometry of district 1
MgFeatureQueryOptions districtQuery = new MgFeatureQueryOptions();
districtQuery.SetFilter("Autogenerated_SDF_ID = 1");
MgFeatureReader reader = districts.SelectFeatures(districtQuery);
MgGeometry districtGeom = null;
MgAgfReaderWriter agfRw = new MgAgfReaderWriter();
try
{
reader.ReadNext();
MgByteReader geomAgf = reader.GetGeometry(districts.GetFeatureGeometryName());
districtGeom = agfRw.Read(geomAgf);
}
finally
{
reader.Close();
}
//Now use this geometry as the basis of our 2nd query
MgFeatureQueryOptions parcelQuery = new MgFeatureQueryOptions();
parcelQuery.SetFilter("RNAME LIKE 'SCHMITT%'");
parcelQuery.SetSpatialFilter(parcels.GetFeatureGeometryName(), districtGeom, MgFeatureSpatialOperations.Inside);
//Select the features
reader = parcels.SelectFeatures(parcelQuery);
List <string> results = new List <string>();
try
{
while (reader.ReadNext())
{
if (!reader.IsNull("RPROPAD"))
{
results.Add(reader.GetString("RPROPAD"));
}
}
}
finally
{
reader.Close();
}
new ParcelQueryResultWindow(results).ShowDialog();
}
public void AddBuffer()
{
MgMap map = new MgMap();
map.Open(_resourceService, GetParameter(this.args, "MAPNAME"));
MgSelection selection = new MgSelection(map);
selection.Open(_resourceService, map.Name);
MgReadOnlyLayerCollection layers = selection.GetLayers();
if (layers != null && layers.Count == 1)
{
MgFeatureQueryOptions opt = new MgFeatureQueryOptions();
opt.SetFilter(selection.GenerateFilter(layers[0], layers[0].FeatureClassName));
MgFeatureReader featureReader = _featureService.SelectFeatures(new MgResourceIdentifier(layers[0].FeatureSourceId), layers[0].FeatureClassName, opt);
MgAgfReaderWriter agfRW = new MgAgfReaderWriter();
MgGeometryCollection inputGeometries = new MgGeometryCollection();
MgClassDefinition classDef = _featureService.GetClassDefinition(
new MgResourceIdentifier(layers[0].FeatureSourceId),
layers[0].FeatureClassName.Split(':')[0],
layers[0].FeatureClassName.Split(':')[1]);
while (featureReader.ReadNext())
{
MgByteReader byteReader = featureReader.GetGeometry(classDef.DefaultGeometryPropertyName);
MgGeometry geom = agfRW.Read(byteReader);
inputGeometries.Add(geom);
}
if (inputGeometries.Count > 0)
{
MgCoordinateSystemFactory coordSysFactory = new MgCoordinateSystemFactory();
MgCoordinateSystem mapSrs = coordSysFactory.Create(map.MapSRS);
double distance = mapSrs.ConvertMetersToCoordinateSystemUnits(7.0);
MgCoordinateSystemMeasure measure = mapSrs.GetMeasure();
MgGeometryFactory geomFactory = new MgGeometryFactory();
MgGeometry buffer = geomFactory.CreateMultiGeometry(inputGeometries).Buffer(distance, measure);
if (buffer != null)
{
MgByteReader byteReader = agfRW.Write(buffer);
MgGeometryFactory geometryFactory = new MgGeometryFactory();
MgAgfReaderWriter agfWriter = new MgAgfReaderWriter();
MgPropertyCollection propertyValues = CreatePropertyCollection(byteReader);
this.InsertMarkupFeature(propertyValues);
}
}
}
}
/// <summary>
/// Установка зумирования и активной выборки (запуск через командную строку - отсюда название)
/// </summary>
/// <param name="sel_base">выборка, которую следует отобразить</param>
internal static void ThroughAssZoomAndSelection(MgSelectionBase sel_base)
{
internal_saved_selection = AcMapFeatureEntityService.AddFeaturesToSelectionSet(null, sel_base); // преобразование в SelectionSet и обратно,
sel_base = AcMapFeatureEntityService.GetSelection(internal_saved_selection); // иначе дает сбой метод GetSelectedFeatures()
MgEnvelope extents = new MgEnvelope();
MgReadOnlyLayerCollection layers = sel_base.GetLayers();
foreach (MgLayerBase layer in layers)
{
MgFeatureReader ftr_reader = sel_base.GetSelectedFeatures(layer, layer.FeatureClassName, false);
string geom_prop_name = ftr_reader.GetClassDefinition().DefaultGeometryPropertyName;
while (ftr_reader.ReadNext())
{
MgByteReader byte_reader = ftr_reader.GetGeometry(geom_prop_name);
MgAgfReaderWriter agf_reader_writer = new MgAgfReaderWriter();
MgGeometry curr_geom = agf_reader_writer.Read(byte_reader);
extents.ExpandToInclude(curr_geom.Envelope());
}
}
// зумирование и вызов функции выбора через командную строку
Core.no_handle_selection = true; // чтобы изменение выборки не обрабатывалось
string zoom_str;
if ((extents.Width == 0) && (extents.Width == extents.Height))
{
zoom_str = "'_zoom _c "
+ extents.LowerLeftCoordinate.X.ToString() + "," + extents.LowerLeftCoordinate.Y.ToString() + " ";
}
else
{
zoom_str = "'_zoom _w "
+ (extents.LowerLeftCoordinate.X - extents.Width / 2).ToString()
+ ","
+ (extents.LowerLeftCoordinate.Y - extents.Height / 2).ToString()
+ " "
+ (extents.UpperRightCoordinate.X + extents.Width / 2).ToString()
+ ","
+ (extents.UpperRightCoordinate.Y + extents.Height / 2).ToString();
}
Core.SendStringToExecute(zoom_str + "\n"
+ "ThroughAssZoomAndSelectionHelperFunction\n"
, true, false, false);
}
private void btnQueryDistrict1_Click(object sender, EventArgs e)
{
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
MgLayerBase districts = layers.GetItem("Districts");
MgLayerBase parcels = layers.GetItem("Parcels");
//Query the geometry of district 1
MgFeatureQueryOptions districtQuery = new MgFeatureQueryOptions();
districtQuery.SetFilter("Autogenerated_SDF_ID = 1");
MgFeatureReader reader = districts.SelectFeatures(districtQuery);
MgGeometry districtGeom = null;
MgAgfReaderWriter agfRw = new MgAgfReaderWriter();
try
{
reader.ReadNext();
MgByteReader geomAgf = reader.GetGeometry(districts.GetFeatureGeometryName());
districtGeom = agfRw.Read(geomAgf);
}
finally
{
reader.Close();
}
//Now use this geometry as the basis of our 2nd query
MgFeatureQueryOptions parcelQuery = new MgFeatureQueryOptions();
parcelQuery.SetFilter("RNAME LIKE 'SCHMITT%'");
parcelQuery.SetSpatialFilter(parcels.GetFeatureGeometryName(), districtGeom, MgFeatureSpatialOperations.Inside);
//Select the features
reader = parcels.SelectFeatures(parcelQuery);
List<string> results = new List<string>();
try
{
while (reader.ReadNext())
{
if (!reader.IsNull("RPROPAD"))
results.Add(reader.GetString("RPROPAD"));
}
}
finally
{
reader.Close();
}
new ParcelQueryResultWindow(results).ShowDialog();
}
public static void WellKnownText()
{
MgAgfReaderWriter agfReaderWriter;
MgWktReaderWriter wktReaderWriter;
MgPoint pt11FromText;
MgPoint pt11;
var pt11TextSpec = "POINT XY ( 1 1 )";
MgByteReader byteReader;
string geometryAgfText;
agfReaderWriter = new MgAgfReaderWriter();
wktReaderWriter = new MgWktReaderWriter();
// In the string to geometry direction:
pt11FromText = wktReaderWriter.Read(pt11TextSpec) as MgPoint;
byteReader = agfReaderWriter.Write(pt11FromText);
// In the geometry to string direction:
pt11 = (MgPoint)agfReaderWriter.Read(byteReader);
geometryAgfText = wktReaderWriter.Write(pt11);
// geometryAgfText now contains the text representation of the geometry
}
public void LoadResults(MgLayerBase layer, MgFeatureQueryOptions query)
{
MgClassDefinition clsDef = layer.GetClassDefinition();
MgPropertyDefinitionCollection idProps = clsDef.GetIdentityProperties();
MgPropertyDefinition idProp = idProps[0];
string idPropName = idProp.Name;
string geomName = layer.FeatureGeometryName;
MgFeatureReader reader = layer.SelectFeatures(query);
MgAgfReaderWriter agfRw = new MgAgfReaderWriter();
try
{
while (reader.ReadNext())
{
var res = new ParcelFeatureModel();
res.ID = reader.GetInt32(idPropName);
res.Owner = reader.IsNull("RNAME") ? "(unknown)" : reader.GetString("RNAME");
res.Address = reader.IsNull("RPROPAD") ? "(unknown)" : reader.GetString("RPROPAD");
if (!reader.IsNull(geomName))
{
MgByteReader agf = reader.GetGeometry(geomName);
MgGeometry geom = agfRw.Read(agf);
MgPoint center = geom.Centroid;
MgCoordinate coord = center.Coordinate;
res.X = coord.X;
res.Y = coord.Y;
}
this.Results.Add(res);
}
}
finally
{
reader.Close();
}
}
public void LoadResults(MgLayerBase layer, MgFeatureQueryOptions query)
{
MgClassDefinition clsDef = layer.GetClassDefinition();
MgPropertyDefinitionCollection idProps = clsDef.GetIdentityProperties();
MgPropertyDefinition idProp = idProps[0];
string idPropName = idProp.Name;
string geomName = layer.FeatureGeometryName;
MgFeatureReader reader = layer.SelectFeatures(query);
MgAgfReaderWriter agfRw = new MgAgfReaderWriter();
try
{
while (reader.ReadNext())
{
var res = new ParcelFeatureModel();
res.ID = reader.GetInt32(idPropName);
res.Owner = reader.IsNull("RNAME") ? "(unknown)" : reader.GetString("RNAME");
res.Address = reader.IsNull("RPROPAD") ? "(unknown)" : reader.GetString("RPROPAD");
if (!reader.IsNull(geomName))
{
MgByteReader agf = reader.GetGeometry(geomName);
MgGeometry geom = agfRw.Read(agf);
MgPoint center = geom.Centroid;
MgCoordinate coord = center.Coordinate;
res.X = coord.X;
res.Y = coord.Y;
}
this.Results.Add(res);
}
}
finally
{
reader.Close();
}
}
public static IGeometryRef GetGeometry(MgByteReader agf)
{
MgGeometry mgeom = _agfRw.Read(agf);
return(new MgGeometryRef(mgeom));
}
//----------------------------------------------------------------------------------------
// �� �ܣ� ��Mapguide���ص�����ת��ΪKML
//
// �� �ߣ�
//
//
// �� �ڣ�2007.05.#
//
//-----------------------------------------------------------------------------------------
public String CreateWheatonMuni()
{
StringBuilder outString = new StringBuilder(1024000);
outString.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
outString.Append("<kml xmlns=\"http://earth.google.com/kml/2.0\">");
outString.Append("<Document>");
outString.Append("<Style id=\"muniStyle\">");
outString.Append("<PolyStyle>");
outString.Append("<outline>1</outline>");
outString.Append("<fill>0</fill>");
outString.Append("<color>ff00ff00</color>");
outString.Append("</PolyStyle>");
outString.Append("<geomColor>ff00ff00</geomColor>");
outString.Append("<geomScale>2</geomScale>");
outString.Append("</Style>");
outString.Append("<Folder>");
outString.Append("<description>Tux - Wheaton Municipal Districts</description>");
outString.Append("<name>Wheaton Municipal Districts</name>");
outString.Append("<visibility>0</visibility>");
outString.Append("<open>0</open>");
MgFeatureService featureService = (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService);
MgResourceIdentifier resId = new MgResourceIdentifier("Library://MgTutorial/Data/WheatonMunicipalities.FeatureSource");
MgFeatureReader featureReader = featureService.SelectFeatures(resId, "WheatonMunicipalities", null);
MgAgfReaderWriter geoReader = new MgAgfReaderWriter();
while (featureReader.ReadNext())
{
String muniName = featureReader.GetString("MUNINAME");
MgByteReader byteReader = featureReader.GetGeometry("Geometry");
MgGeometry geo = geoReader.Read(byteReader);
outString.Append("<Placemark>");
outString.Append("<name>" + muniName + "</name>");
outString.Append("<description>" + muniName + "</description>");
outString.Append("<styleUrl>#muniStyle</styleUrl>");
PolygonWriter polygonWriter = new PolygonWriter();
polygonWriter.EmitGeometry(geo, 0, 0);
outString.Append(polygonWriter.getOutputString());
outString.Append("</Placemark>");
}
featureReader.Close();
outString.Append("</Folder>");
outString.Append("</Document>");
outString.Append("</kml>");
return outString.ToString();
}
MgGeometry MultiGeometryFromSelection(MgFeatureService featureSrvc, MgMap map, String selText)
{
MgSelection sel = new MgSelection(map);
sel.FromXml(selText);
MgReadOnlyLayerCollection selLayers = sel.GetLayers();
if (selLayers == null)
return null;
MgGeometryCollection geomColl = new MgGeometryCollection();
MgAgfReaderWriter agfRW = new MgAgfReaderWriter();
bool polyOnly = true;
for (int i = 0; i < selLayers.GetCount(); i++)
{
MgLayer layer = (MgLayer)selLayers.GetItem(i);
// TODO: How to get selectionSize?
//int selectionSize = 20;
string filter = sel.GenerateFilter(layer, layer.GetFeatureClassName());
if (filter == "")
continue;
MgFeatureQueryOptions query = new MgFeatureQueryOptions();
query.SetFilter(filter);
MgResourceIdentifier featureSource = new MgResourceIdentifier(layer.GetFeatureSourceId());
MgFeatureReader features = featureSrvc.SelectFeatures(featureSource, layer.GetFeatureClassName(), query);
if (features != null)
{
MgClassDefinition classDef = features.GetClassDefinition();
String geomPropName = classDef.GetDefaultGeometryPropertyName();
int j = 0;
//bool isPoly = true;
while (features.ReadNext())
{
MgByteReader geomReader = features.GetGeometry(geomPropName);
MgGeometry geom = agfRW.Read(geomReader);
if (j++ == 0)
{
int type = geom.GetGeometryType();
if (type == MgGeometryType.MultiPolygon || type == MgGeometryType.CurvePolygon || type == MgGeometryType.MultiCurvePolygon)
{
//isPoly = false;
polyOnly = false;
}
else if (type != MgGeometryType.Polygon)
{
break;
}
}
geomColl.Add(geom);
}
features.Close();
features.Dispose();
}
}
if (geomColl.GetCount() == 0)
{
return null;
}
MgGeometryFactory gf = new MgGeometryFactory();
if (polyOnly)
{
MgPolygonCollection polyColl = new MgPolygonCollection();
for (int j = 0; j < geomColl.GetCount(); j++)
{
polyColl.Add((MgPolygon)geomColl.GetItem(j));
}
return gf.CreateMultiPolygon(polyColl);
}
else
{
return gf.CreateMultiGeometry(geomColl);
}
}
private MgFeature CreateFeatureFromReader(MgFeatureReader reader)
{
var feature = new MgFeature();
var hash = feature.Properties;
for (int i = 0; i < reader.GetPropertyCount(); i++)
{
var pt = reader.GetPropertyType(i);
//Skip un-presentable types
if (pt == MgPropertyType.Null ||
pt == MgPropertyType.Raster ||
pt == MgPropertyType.Blob ||
pt == MgPropertyType.Feature ||
pt == MgPropertyType.Clob)
{
continue;
}
string name = reader.GetPropertyName(i);
if (reader.IsNull(i))
{
hash[name] = null;
}
else
{
switch (pt)
{
case MgPropertyType.Boolean:
hash[name] = reader.GetBoolean(i);
break;
case MgPropertyType.Byte:
hash[name] = reader.GetByte(i);
break;
case MgPropertyType.DateTime:
{
var dt = reader.GetDateTime(i);
hash[name] = new DateTime(dt.Year, dt.Month, dt.Day, dt.Hour, dt.Minute, dt.Second, 0);
}
break;
case MgPropertyType.Double:
case MgPropertyType.Decimal:
hash[name] = reader.GetDouble(i);
break;
case MgPropertyType.Int16:
hash[name] = reader.GetInt16(i);
break;
case MgPropertyType.Int32:
hash[name] = reader.GetInt32(i);
break;
case MgPropertyType.Int64:
hash[name] = reader.GetInt64(i);
break;
case MgPropertyType.Single:
hash[name] = reader.GetSingle(i);
break;
case MgPropertyType.String:
hash[name] = reader.GetString(i);
break;
case MgPropertyType.Geometry:
{
MgByteReader agf = reader.GetGeometry(i);
feature.Geometry = _agfRw.Read(agf);
}
break;
}
}
}
return(feature);
}
private void btnCreateBuffer_Click(object sender, EventArgs e)
{
MgSelectionBase selection = _viewer.GetSelection();
MgReadOnlyLayerCollection layers = selection.GetLayers();
if (layers == null)
{
MessageBox.Show("Select a parcel");
return;
}
MgLayerBase parcels = null;
for (int i = 0; i < layers.GetCount(); i++)
{
MgLayerBase layer = layers.GetItem(i);
if (layer.Name == "Parcels")
{
parcels = layer;
break;
}
}
if (parcels == null)
{
MessageBox.Show("Select a parcel");
return;
}
int bufferRingSize = 100; // measured in metres
int bufferRingCount = 5;
// Set up some objects for coordinate conversion
MgMapBase map = _viewer.GetMap();
MgLayerCollection mapLayers = map.GetLayers();
MgMapViewerProvider provider = _viewer.GetProvider();
MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService);
//Casting to MgdFeatureService because we want to use convenience APIs
MgFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService);
String mapWktSrs = map.GetMapSRS();
MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter();
MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter();
MgCoordinateSystemFactory coordinateSystemFactory = new MgCoordinateSystemFactory();
MgCoordinateSystem srs = coordinateSystemFactory.Create(mapWktSrs);
MgMeasure srsMeasure = srs.GetMeasure();
string sessionId = Guid.NewGuid().ToString();
BufferHelper helper = new BufferHelper();
// Check for a buffer layer. If it exists, delete
// the current features.
// If it does not exist, create a feature source and
// a layer to hold the buffer.
MgdLayer bufferLayer = null;
int layerIndex = mapLayers.IndexOf("Buffer");
if (layerIndex < 0)
{
// The layer does not exist and must be created.
MgResourceIdentifier bufferFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//Buffer.FeatureSource");
helper.CreateBufferFeatureSource(featureService, mapWktSrs, bufferFeatureResId);
bufferLayer = helper.CreateBufferLayer(resourceService, bufferFeatureResId, sessionId);
mapLayers.Insert(0, bufferLayer);
}
else
{
bufferLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex);
bufferLayer.DeleteFeatures("ID like '%'");
}
// Get the selected features from the MgSelection object
MgFeatureReader featureReader = selection.GetSelectedFeatures(parcels, parcels.GetFeatureClassName(), false);
// Process each item in the MgFeatureReader. Get the
// geometries from all the selected features and
// merge them into a single geometry.
MgGeometryCollection inputGeometries = new MgGeometryCollection();
while (featureReader.ReadNext())
{
MgByteReader featureGeometryData = featureReader.GetGeometry(parcels.GetFeatureGeometryName());
MgGeometry featureGeometry = agfReaderWriter.Read(featureGeometryData);
inputGeometries.Add(featureGeometry);
}
MgGeometryFactory geometryFactory = new MgGeometryFactory();
MgGeometry mergedGeometries = geometryFactory.CreateMultiGeometry(inputGeometries);
// Add buffer features to the temporary feature source.
// Create multiple concentric buffers to show area.
// If the stylization for the layer draws the features
// partially transparent, the concentric rings will be
// progressively darker towards the center.
// The stylization is set in the layer template file, which
// is used in function CreateBufferLayer().
for (int bufferRing = 0; bufferRing < bufferRingCount; bufferRing++)
{
double bufferDist = srs.ConvertMetersToCoordinateSystemUnits(bufferRingSize * (bufferRing + 1));
MgGeometry bufferGeometry = mergedGeometries.Buffer(bufferDist, srsMeasure);
MgPropertyCollection properties = new MgPropertyCollection();
properties.Add(new MgGeometryProperty("BufferGeometry", agfReaderWriter.Write(bufferGeometry)));
MgFeatureReader fr = bufferLayer.InsertFeatures(properties);
fr.Close();
}
bufferLayer.SetVisible(true);
bufferLayer.ForceRefresh();
bufferLayer.SetDisplayInLegend(true);
MessageBox.Show("Buffer created");
_viewer.RefreshMap();
IMapLegend legend = Shell.Instance.Legend;
if (legend != null)
{
legend.RefreshLegend();
}
}
public LocalNativeRecord(MgReader reader, FixedWKTReader mgReader, MgAgfReaderWriter agfRw, MgWktReaderWriter wktRw)
{
for (int i = 0; i < reader.GetPropertyCount(); i++)
{
string name = reader.GetPropertyName(i);
_ordinalMap[i] = name;
var pt = (PropertyValueType)reader.GetPropertyType(name);
switch (pt)
{
case PropertyValueType.Blob:
_values[name] = new BlobValue();
break;
case PropertyValueType.Boolean:
_values[name] = new BooleanValue();
break;
case PropertyValueType.Byte:
_values[name] = new ByteValue();
break;
case PropertyValueType.Clob:
_values[name] = new ClobValue();
break;
case PropertyValueType.DateTime:
_values[name] = new DateTimeValue();
break;
case PropertyValueType.Double:
_values[name] = new DoubleValue();
break;
case PropertyValueType.Feature:
_values[name] = new FeatureValue();
break;
case PropertyValueType.Geometry:
_values[name] = new GeometryValue();
break;
case PropertyValueType.Int16:
_values[name] = new Int16Value();
break;
case PropertyValueType.Int32:
_values[name] = new Int32Value();
break;
case PropertyValueType.Int64:
_values[name] = new Int64Value();
break;
case PropertyValueType.Raster:
_values[name] = new RasterValue();
break;
case PropertyValueType.Single:
_values[name] = new SingleValue();
break;
case PropertyValueType.String:
_values[name] = new StringValue();
break;
}
}
for (int i = 0; i < reader.GetPropertyCount(); i++)
{
string name = _ordinalMap[i];
GetByteReaderMethod getblob = () => { return reader.GetBLOB(name); };
GetByteReaderMethod getclob = () => { return reader.GetCLOB(name); };
GetByteReaderMethod getgeom = () => { return reader.GetGeometry(name); };
if (!reader.IsNull(name))
{
var pt = (PropertyValueType)reader.GetPropertyType(name);
switch (pt)
{
case PropertyValueType.Blob:
((BlobValue)_values[name]).Value = Utility.StreamAsArray(new MgReadOnlyStream(getblob));
break;
case PropertyValueType.Boolean:
((BooleanValue)_values[name]).Value = reader.GetBoolean(name);
break;
case PropertyValueType.Byte:
((ByteValue)_values[name]).Value = reader.GetByte(name);
break;
case PropertyValueType.Clob:
byte[] b = Utility.StreamAsArray(new MgReadOnlyStream(getclob));
((ClobValue)_values[name]).Value = Encoding.UTF8.GetChars(b);
break;
case PropertyValueType.DateTime:
((DateTimeValue)_values[name]).Value = Utility.ConvertMgDateTime(reader.GetDateTime(name));
break;
case PropertyValueType.Double:
((DoubleValue)_values[name]).Value = reader.GetDouble(name);
break;
//case PropertyValueType.Feature:
case PropertyValueType.Geometry:
try
{
//TODO: See if SWIG issues come into play here
var geom = agfRw.Read(reader.GetGeometry(name));
var wkt = wktRw.Write(geom);
((GeometryValue)_values[name]).Value = mgReader.Read(wkt);
}
catch //Invalid geometry fail!
{
((GeometryValue)_values[name]).SetNull();
}
break;
case PropertyValueType.Int16:
((Int16Value)_values[name]).Value = reader.GetInt16(name);
break;
case PropertyValueType.Int32:
((Int32Value)_values[name]).Value = reader.GetInt32(name);
break;
case PropertyValueType.Int64:
((Int64Value)_values[name]).Value = reader.GetInt64(name);
break;
case PropertyValueType.Single:
((SingleValue)_values[name]).Value = reader.GetSingle(name);
break;
case PropertyValueType.String:
((StringValue)_values[name]).Value = reader.GetString(name);
break;
}
}
}
}
public string getPlanMapImageAsBase64String(string planID, string imageWidth, string imageHeight)
{
try
{
MgUserInformation userInfo = null;
string mapWebTierInit = ConfigurationManager.AppSettings["MGWebTierInit"].ToString();
MapGuideApi.MgInitializeWebTier(mapWebTierInit);
// Om kartsession finns för applikationssession använd den annars skapa ny kartssitesession
string mapSiteSessionID = null;
if (Session["MapSiteSessionID"] != null)
{
mapSiteSessionID = Session["MapSiteSessionID"].ToString();
userInfo = new MgUserInformation(mapSiteSessionID);
}
else
{
// Initierar kartsite och kartsession
string mapUserName = ConfigurationManager.AppSettings["MGUserName"].ToString();
string mapUserPass = ConfigurationManager.AppSettings["MGUserPass"].ToString();
userInfo = new MgUserInformation(mapUserName, mapUserPass);
MgSite mapSite = new MgSite();
mapSite.Open(userInfo);
userInfo.Dispose();
mapSiteSessionID = mapSite.CreateSession();
//mapSite.Close();
Session["MapSiteSessionID"] = mapSiteSessionID;
userInfo = new MgUserInformation(mapSiteSessionID);
}
//bool test = resSvc.ResourceExists(mapResId);
string mapSurfaceFactor = ConfigurationManager.AppSettings["MGMapSurfaceFactor"].ToString();
string mapRes = ConfigurationManager.AppSettings["MGMapResource"].ToString();
string planRes = ConfigurationManager.AppSettings["MGPlanytorResource"].ToString();
string planClassName = ConfigurationManager.AppSettings["MGPlanytorClassName"].ToString();
string planFilterColumn = ConfigurationManager.AppSettings["MGPlanytorFilterColumn"].ToString();
string planGeometryColumn = ConfigurationManager.AppSettings["MGPlanytorGeometryColumn"].ToString();
string planytorStrokeRgbaColor = ConfigurationManager.AppSettings["MGPlanytorStrokeRgbaColor"].ToString();
string planytorForegroundRgbaColor = ConfigurationManager.AppSettings["MGPlanytorForegroundRgbaColor"].ToString();
string mapImageSizeFromServer = ConfigurationManager.AppSettings["MGMapImageSizeFromServer"].ToString();
// Standardvärde för storlek på kartbild, används om värde ej finns i Settings.config eller skickas in som parametrar i webbmetod
string mapImageWidthPixel = "400";
string mapImageHeightPixel = "300";
// Väljer bredd och höjd på kartbild om värde ska finnas i Settings.config samt indikeras att de ska användas
// annars förväntas värde skickas med i webbmetod
if (mapImageSizeFromServer.ToLower() == "true")
{
mapImageWidthPixel = ConfigurationManager.AppSettings["MGMapImageWidth"].ToString();
mapImageHeightPixel = ConfigurationManager.AppSettings["MGMapImageHeight"].ToString();
}
else
{
if (!string.IsNullOrWhiteSpace(imageWidth) && !string.IsNullOrWhiteSpace(imageHeight))
{
mapImageWidthPixel = imageWidth;
mapImageHeightPixel = imageHeight;
}
}
MgSiteConnection siteConnection = new MgSiteConnection();
siteConnection.Open(userInfo);
MgResourceService resSvc = (MgResourceService)siteConnection.CreateService(MgServiceType.ResourceService);
MgResourceIdentifier mapResId = new MgResourceIdentifier(mapRes);
MgFeatureService featSvc = (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService);
MgResourceIdentifier planResId = new MgResourceIdentifier(planRes);
// Filter för planDoc efter planDoc-ID
MgFeatureQueryOptions featureQuery = new MgFeatureQueryOptions();
featureQuery.SetFilter(planFilterColumn + " = " + planID);
MgFeatureReader featureReader = featSvc.SelectFeatures(planResId, planClassName, featureQuery);
MgByteReader byteReaderGeometry = null;
MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter();
MgGeometryCollection geometryCollection = new MgGeometryCollection();
int featureCount = 0;
try
{
while (featureReader.ReadNext())
{
byteReaderGeometry = featureReader.GetGeometry(planGeometryColumn);
MgGeometry districtGeometry = agfReaderWriter.Read(byteReaderGeometry);
geometryCollection.Add(districtGeometry);
featureCount++;
}
}
finally
{
featureReader.Close();
}
MgGeometryFactory geometryFactory = new MgGeometryFactory();
MgMultiGeometry multiGeometry = geometryFactory.CreateMultiGeometry(geometryCollection);
MgMap map = new MgMap(siteConnection);
MgEnvelope envelope = multiGeometry.Envelope();
// Anpassar ev. punkt till komma i tal som hanteras som textsträng för kommande konvertering
if (mapImageHeightPixel.IndexOf(".") != -1)
{
mapImageHeightPixel = mapImageHeightPixel.Replace(".", ",");
}
if (mapImageWidthPixel.IndexOf(".") != -1)
{
mapImageWidthPixel = mapImageWidthPixel.Replace(".", ",");
}
// Önskad bilds höjd och bredd i punkter
double imageHeightPixel = Convert.ToDouble(mapImageHeightPixel);
double imageWidthPixel = Convert.ToDouble(mapImageWidthPixel);
map.DisplayDpi = 120;
double heightEnvelopeN = envelope.Height;
double widthEnvelopeE = envelope.Width;
// Anpassar utbredningen på sökta planer (envelope) till bildens format för att bevara skalriktighet
string mapFarthest = string.Empty;
if (heightEnvelopeN > widthEnvelopeE)
mapFarthest = "height";
else
mapFarthest = "width";
string imageFarthest = string.Empty;
if (imageHeightPixel > imageWidthPixel)
imageFarthest = "height";
else
imageFarthest = "width";
double scale = 1.0;
const double inch = 2.54;
// Ändring av kartans utbredning och addering av utrymme i kartans bild runt planavgränsningen
// Map = avgränsning enligt planytan (utbredning i kartan), Image = önskad bild att skapa med kartan
// Om: kartans höjd är längst & bildens bredd är längst
if (mapFarthest == "height" && imageFarthest == "width")
{
scale = imageWidthPixel / imageHeightPixel * inch;
widthEnvelopeE = imageWidthPixel / imageHeightPixel * heightEnvelopeN * scale;
}
// Om: kartans bredd är längst & bildens höjd är längst
else if (mapFarthest == "width" && imageFarthest == "height")
{
scale = imageHeightPixel / imageWidthPixel * inch;
heightEnvelopeN = imageHeightPixel / imageWidthPixel * widthEnvelopeE * scale;
}
// Om: kartans höjd är längst & bildens höjd är längst
else if (mapFarthest == "height" && imageFarthest == "height")
{
double compareSide = (heightEnvelopeN / (imageHeightPixel / imageWidthPixel));
bool isCompareSideFarthest = false;
if (compareSide > widthEnvelopeE)
{
isCompareSideFarthest = true;
}
else
{
isCompareSideFarthest = false;
}
scale = imageHeightPixel / imageWidthPixel * inch;
if (isCompareSideFarthest)
{
widthEnvelopeE = heightEnvelopeN / (imageHeightPixel / imageWidthPixel) * scale;
}
else
{
heightEnvelopeN = (imageHeightPixel / imageWidthPixel) * widthEnvelopeE * scale;
}
}
// Om(annars): kartans bredd är längst & bildens bredd är längst
else
{
double compareSide = (widthEnvelopeE / (imageWidthPixel / imageHeightPixel));
bool isCompareSideFarthest = false;
if (compareSide > heightEnvelopeN)
{
isCompareSideFarthest = true;
}
else
{
isCompareSideFarthest = false;
}
scale = imageWidthPixel / imageHeightPixel * inch;
if (isCompareSideFarthest)
{
heightEnvelopeN = widthEnvelopeE / (imageWidthPixel / imageHeightPixel) * scale;
}
else
{
widthEnvelopeE = heightEnvelopeN * (imageWidthPixel / imageHeightPixel) * scale;
}
}
double mapSurfaceFactorDbl = Convert.ToDouble(mapSurfaceFactor.Replace('.', ','));
double newHeightN = heightEnvelopeN * mapSurfaceFactorDbl;
double newWidthE = widthEnvelopeE * mapSurfaceFactorDbl;
MgCoordinate lowerLeft = envelope.LowerLeftCoordinate;
MgCoordinate upperRight = envelope.UpperRightCoordinate;
envelope = new MgEnvelope(lowerLeft.X - (newWidthE - widthEnvelopeE) / 2,
lowerLeft.Y - (newHeightN - heightEnvelopeN) / 2,
upperRight.X + (newWidthE - widthEnvelopeE) / 2,
upperRight.Y + (newHeightN - heightEnvelopeN) / 2);
map.Create(resSvc, mapResId, mapResId.Name);
// Skapa lagerdefinition i XML
DefineAreaLayer areaLayer = new DefineAreaLayer();
areaLayer.FeatureName = planClassName;
areaLayer.FeatureSourceName = planRes;
areaLayer.GeometryColumnName = planGeometryColumn;
areaLayer.Filter = planFilterColumn + " = " + planID;
LayerScaleRangeCollection lsrCollection = new LayerScaleRangeCollection();
LayerScaleRange lsr = new LayerScaleRange();
// MinScale applikations-default till 0 (inklusive) om utelämnat, MaxScale applikations-default till kartans maxskala (exklusive) om utelämnat
//lsr.MinScale = "0";
//lsr.MaxScale = "100000000";
AreaTypeStyle ats = new AreaTypeStyle();
AreaRuleCollection arCollection = new AreaRuleCollection();
AreaRule ar = new AreaRule();
//ar.Filter = planFilterColumn + " = " + planID;
ar.LegendLabel = "Plan" + planID;
AreaSymbolization2D symb2D = new AreaSymbolization2D();
Fill fill = new Fill();
fill.BackgroundColor = "FFFF0000";
fill.FillPattern = "Solid";
fill.ForegroundColor = convertRgbsToHexColor(planytorForegroundRgbaColor);
Stroke stroke = new Stroke();
stroke.Color = convertRgbsToHexColor(planytorStrokeRgbaColor);
stroke.LineStyle = "Solid";
stroke.Thickness = "1";
stroke.Unit = "Points";
symb2D.Fill = fill;
symb2D.Stroke = stroke;
ar.Symbolization2D = symb2D;
arCollection.Add(ar);
ats.AreaRules = arCollection;
lsr.AreaTypeStyle = ats;
lsrCollection.Add(lsr);
areaLayer.LayerScaleRanges = lsrCollection;
XmlDocument xmlFile = new XmlDocument();
//XDocument xmlFile = new XDocument();
// om returnerande av xml-dokument
//xmlFile = areaLayer.CreateLayerDefinitionAsXmlDocument();
// om returnerande av xml-sträng
xmlFile.LoadXml(areaLayer.CreateLayerDefinitionAsXmlString());
//xmlFile = areaLayer.CreateLayerDefinitionAsXDocument();
//xmlFile.Save(Server.MapPath(this.Context.Request.ApplicationPath) + "XmlTestLayerDefinition.xml");
using (MemoryStream msNewPlanLayer = new MemoryStream())
{
xmlFile.Save(msNewPlanLayer);
msNewPlanLayer.Position = 0L;
//Note we do this to ensure our XML content is free of any BOM characters
byte[] layerDefinition = msNewPlanLayer.ToArray();
Encoding utf8 = Encoding.UTF8;
String layerDefStr = new String(utf8.GetChars(layerDefinition));
layerDefinition = new byte[layerDefStr.Length - 1];
int byteCount = utf8.GetBytes(layerDefStr, 1, layerDefStr.Length - 1, layerDefinition, 0);
// Save the new layer definition to the session repository
MgByteSource byteSource = new MgByteSource(layerDefinition, layerDefinition.Length);
MgResourceIdentifier layerResourceID = new MgResourceIdentifier("Session:" + mapSiteSessionID + "//" + "planytor" + ".LayerDefinition"); //"SearchedPlan" + planID + ".LayerDefinition");
resSvc.SetResource(layerResourceID, byteSource.GetReader(), null);
MgLayer newPlanLayer = new MgLayer(layerResourceID, resSvc);
newPlanLayer.SetName("Sökta planer");
newPlanLayer.SetVisible(true);
newPlanLayer.SetLegendLabel("Sökta planer");
newPlanLayer.SetDisplayInLegend(true);
MgLayerCollection layerCollection = map.GetLayers();
if (!layerCollection.Contains(newPlanLayer))
{
// Insert the new layer at position 0 so it is at the top
// of the drawing order
layerCollection.Insert(0, newPlanLayer);
}
else
{
layerCollection.Remove(newPlanLayer);
layerCollection.Insert(0, newPlanLayer);
}
map.Save();
}
double mapScale = map.ViewScale;
// XML-dokument till ren text
//StringWriter stringWriter = new StringWriter();
//XmlWriter xmlTextWriter = XmlWriter.Create(stringWriter);
//xmlFile.WriteTo(xmlTextWriter);
//xmlTextWriter.Flush();
string xmlSelection = string.Empty;
//string xmlSelection = stringWriter.GetStringBuilder().ToString();
MgSelection selection = null;
if (!string.IsNullOrEmpty(xmlSelection))
{
selection = new MgSelection(map, xmlSelection);
}
else
{
selection = new MgSelection(map);
}
MgColor color = new MgColor("255,255,255");
// Skapar bild av kartan
MgRenderingService renderingService = (MgRenderingService)siteConnection.CreateService(MgServiceType.RenderingService);
//MgByteReader byteReader = renderingService.RenderMap(map, selection, "PNG");
MgByteReader byteReader = renderingService.RenderMap(map, selection, envelope, Convert.ToInt32(imageWidthPixel), Convert.ToInt32(imageHeightPixel), color, "PNG");
MemoryStream ms = new MemoryStream();
byte[] byteBuffer = new byte[1024];
int numBytes = byteReader.Read(byteBuffer, 1024);
while (numBytes > 0)
{
ms.Write(byteBuffer, 0, numBytes);
numBytes = byteReader.Read(byteBuffer, 1024);
}
byte[] mapImageByte = ms.ToArray();
string imageBase64String = Convert.ToBase64String(mapImageByte);
map.Dispose();
siteConnection.Dispose();
DataTable dtResult = new DataTable();
DataColumn dc = new DataColumn("MAPIMAGEBASE64");
dtResult.Columns.Add(dc);
dc = new DataColumn("WIDTH");
dtResult.Columns.Add(dc);
dc = new DataColumn("HEIGHT");
dtResult.Columns.Add(dc);
DataRow dr = dtResult.NewRow();
dr["MAPIMAGEBASE64"] = imageBase64String;
dr["WIDTH"] = imageWidthPixel;
dr["HEIGHT"] = imageHeightPixel;
dtResult.Rows.Add(dr);
//TODO: MAP: Vad kan returneras, base64 eller länk där bild temporärt genereras på server
//JavaScriptSerializer jsonSerializer = new JavaScriptSerializer();
//return jsonSerializer.Serialize(imageBase64String);
return getDatatableAsJson(dtResult);
}
catch (System.Exception ex)
{
UtilityException.LogException(ex, "Webbmetod : getPlanMapImageAsBase64String", true);
return null;
}
}
public static void EmitLocationResults(MgFeatureService featureService, MgResourceIdentifier locationMarkerDataResId, String mgSessionId, HttpResponse response)
{
//targets.InnerHtml+="<table class=\"RegText\" border=\"0\" cellspacing=\"0\" width=\"100%\">";
//targets.InnerHtml+="<tr><td class=\"SubTitle\">תוצאות</td></tr>";
MgAgfReaderWriter geometryReaderWriter = new MgAgfReaderWriter();
MgFeatureReader featureReader = featureService.SelectFeatures(locationMarkerDataResId, "LocationMarker", null);
while (featureReader.ReadNext())
{
String address = featureReader.GetString("Address");
MgByteReader byteReader = featureReader.GetGeometry("Location");
MgPoint point = geometryReaderWriter.Read(byteReader) as MgPoint;
double x = point.GetCoordinate().GetX();
double y = point.GetCoordinate().GetY();
// targets.InnerHtml+="<tr><td>";
// targets.InnerHtml+="<img src=\"../images/pushpinblue.jpg\">";
// targets.InnerHtml += "<a href=\"gotopoint.aspx?X=" + x + "&Y=" + y + "&Scale=10000\" target=\"scriptFrame\">X: " + x + ", Y: " + y + "</a></td></tr>";
}
featureReader.Close();
//targets.InnerHtml+="</table>";
// targets.InnerHtml+="<form action=\"clearlocationresults.aspx\" method=\"get\" target=\"scriptFrame\">";
//targets.InnerHtml+="<input type=\"hidden\" name=\"SESSION\" value=\"" + mgSessionId + "\">";
// targets.InnerHtml+="<input type=\"button\" class=\"Ctrl\" value=\"נקה תוצאות \" onClick=\"javascript:submit()\">";
//targets.InnerHtml+="</form>";
// targets.InnerHtml+="<hr>";
}
MgGeometry MultiGeometryFromSelection(MgFeatureService featureSrvc, MgMap map, String selText)
{
MgSelection sel = new MgSelection(map);
sel.FromXml(selText);
MgReadOnlyLayerCollection selLayers = sel.GetLayers();
if (selLayers == null)
{
return(null);
}
MgGeometryCollection geomColl = new MgGeometryCollection();
MgAgfReaderWriter agfRW = new MgAgfReaderWriter();
bool polyOnly = true;
for (int i = 0; i < selLayers.GetCount(); i++)
{
MgLayer layer = (MgLayer)selLayers.GetItem(i);
// TODO: How to get selectionSize?
//int selectionSize = 20;
string filter = sel.GenerateFilter(layer, layer.GetFeatureClassName());
if (filter == "")
{
continue;
}
MgFeatureQueryOptions query = new MgFeatureQueryOptions();
query.SetFilter(filter);
MgResourceIdentifier featureSource = new MgResourceIdentifier(layer.GetFeatureSourceId());
MgFeatureReader features = featureSrvc.SelectFeatures(featureSource, layer.GetFeatureClassName(), query);
if (features != null)
{
MgClassDefinition classDef = features.GetClassDefinition();
String geomPropName = classDef.GetDefaultGeometryPropertyName();
int j = 0;
//bool isPoly = true;
while (features.ReadNext())
{
MgByteReader geomReader = features.GetGeometry(geomPropName);
MgGeometry geom = agfRW.Read(geomReader);
if (j++ == 0)
{
int type = geom.GetGeometryType();
if (type == MgGeometryType.MultiPolygon || type == MgGeometryType.CurvePolygon || type == MgGeometryType.MultiCurvePolygon)
{
//isPoly = false;
polyOnly = false;
}
else if (type != MgGeometryType.Polygon)
{
break;
}
}
geomColl.Add(geom);
}
features.Close();
features.Dispose();
}
}
if (geomColl.GetCount() == 0)
{
return(null);
}
MgGeometryFactory gf = new MgGeometryFactory();
if (polyOnly)
{
MgPolygonCollection polyColl = new MgPolygonCollection();
for (int j = 0; j < geomColl.GetCount(); j++)
{
polyColl.Add((MgPolygon)geomColl.GetItem(j));
}
return(gf.CreateMultiPolygon(polyColl));
}
else
{
return(gf.CreateMultiGeometry(geomColl));
}
}
//---------------------------------------------------------------------------------------
//
// ���ܣ���ѯҪ��
//
// ���ߣ�
//
// ���ڣ� 2007.5.23
//
// ����ʷ����
//
//---------------------------------------------------------------------------------------
public ArrayList MakeQuery(int districtNum, String name)
{
ArrayList list = null;
//��ȡ��Դ�����Ҫ�ط���
MgResourceService resService = (MgResourceService)siteConnection.CreateService(MgServiceType.ResourceService);
MgFeatureService featureService = (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService);
MgMap map = new MgMap();
map.Open(resService, "Sheboygan");
// ָ����ѯ�Ĺ�������
MgFeatureQueryOptions districtQuery = new MgFeatureQueryOptions();
districtQuery.SetFilter("Autogenerated_SDF_ID = " + districtNum);
////ָ����ѯ��Ҫ��Դ����Դ��ʶ����ͶƱѡ��VotingDistricts��
MgResourceIdentifier districtId = new MgResourceIdentifier("Library://MgTutorial/Data/VotingDistricts.FeatureSource");
MgFeatureReader featureReader = featureService.SelectFeatures(districtId, "VotingDistricts", districtQuery);
// �����ѯ�����ͶƱѡ��VotingDistricts��
featureReader.ReadNext();
MgByteReader geometryBytes = featureReader.GetGeometry("Data");
MgAgfReaderWriter agfReader = new MgAgfReaderWriter();
MgGeometry districtGeometry = agfReader.Read(geometryBytes);
// ָ����ѯ�Ĺ�����������ָ��ͶƱѡ��VotingDistricts��Χ�ڲ�ѯ
MgFeatureQueryOptions nameQuery = new MgFeatureQueryOptions();
nameQuery.SetFilter("RNAME LIKE '" + name + "%'");
nameQuery.SetSpatialFilter("SHPGEOM", districtGeometry, MgFeatureSpatialOperations.Inside);
////ָ����ѯ��Ҫ��Դ����Դ��ʶ�����ؿ�Parcels��
MgResourceIdentifier parcelId =new MgResourceIdentifier("Library://MgTutorial/Data/Parcels.FeatureSource");
featureReader = featureService.SelectFeatures(parcelId, "Parcels", nameQuery);
// �����ѯ���
list = new ArrayList();
while (featureReader.ReadNext())
{
// ��ȡRPROPAD���Զζ�Ӧ�����ݣ�String���ͣ�
list.Add(featureReader.GetString("RPROPAD"));
}
String schema = featureService.DescribeSchemaAsXml(parcelId, "");
return list;
}
//---------------------------------------------------------------------------------------
//
// ���ܣ�δ֪��ѯ����е��������ݵ����͵Ĵ������
//
//
// ���ߣ�
//
// ���ڣ� 2007.5.23
//
// ����ʷ����
//
//---------------------------------------------------------------------------------------
public void GetPropertyValue(MgFeatureReader featureReader, int propertyType, string propertyName)
{
switch (propertyType )
{
case MgPropertyType.Null:
break;
case MgPropertyType.Boolean:
bool val1 = featureReader.GetBoolean(propertyName);
break;
case MgPropertyType.Byte:
Byte val2 = featureReader.GetByte(propertyName);
break;
case MgPropertyType.DateTime:
MgDateTime val3 = featureReader.GetDateTime(propertyName);
break;
case MgPropertyType.Single:
float val4 = featureReader.GetSingle(propertyName);
break;
case MgPropertyType.Double:
double val5 = featureReader.GetDouble(propertyName);
break;
case MgPropertyType.Int16:
Int16 val6 = featureReader.GetInt16(propertyName);
break;
case MgPropertyType.Int32:
Int32 val7 = featureReader.GetInt32(propertyName);
break;
case MgPropertyType.Int64:
Int64 val8 = featureReader.GetInt64(propertyName);
break;
case MgPropertyType.String:
string val9 = featureReader.GetString(propertyName);
break;
case MgPropertyType.Blob:
string val10 = propertyName + " ��Blob����";
break;
case MgPropertyType.Clob:
string val11 = propertyName + " ��Clob����";
break;
case MgPropertyType.Feature:
MgFeatureReader val12 = featureReader.GetFeatureObject(propertyName);
break;
case MgPropertyType.Geometry:
MgByteReader va13l = featureReader.GetGeometry(propertyName);
MgAgfReaderWriter agfReader = new MgAgfReaderWriter();
MgGeometry districtGeometry = agfReader.Read(va13l);
break;
case MgPropertyType.Raster:
MgRaster val14 = featureReader.GetRaster(propertyName) ;
break;
default:
string val13 = "δ֪����";
break;
}
}
public override void Invoke()
{
var viewer = this.Viewer;
var sel = viewer.GetSelection();
var selLayers = sel.GetLayers();
if (selLayers == null)
{
MessageBox.Show(Strings.TextNoSelection);
return;
}
//This doesn't work :(
//
//var provider = viewer.GetProvider();
//var featSvc = (MgFeatureService)provider.CreateService(MgServiceType.FeatureService);
//var ext = sel.GetExtents(featSvc);
//var ll = ext.LowerLeftCoordinate;
//var ur = ext.UpperRightCoordinate;
//viewer.ZoomToExtents(ll.X, ll.Y, ur.X, ur.Y);
MgEnvelope env = new MgEnvelope();
if (_agfRw == null)
{
_agfRw = new MgAgfReaderWriter();
}
for (var i = 0; i < selLayers.GetCount(); i++)
{
var layer = selLayers.GetItem(i);
var fr = sel.GetSelectedFeatures(layer, layer.FeatureClassName, false);
try
{
string geomName = layer.GetFeatureGeometryName();
while (fr.ReadNext())
{
if (!fr.IsNull(geomName))
{
MgByteReader agf = null;
MgGeometry geom = null;
try
{
agf = fr.GetGeometry(geomName);
geom = _agfRw.Read(agf);
env.ExpandToInclude(geom.Envelope());
}
finally
{
if (agf != null)
{
agf.Dispose();
agf = null;
}
if (geom != null)
{
geom.Dispose();
geom = null;
}
}
}
}
}
finally
{
fr.Close();
}
}
var ll = env.LowerLeftCoordinate;
var ur = env.UpperRightCoordinate;
viewer.ZoomToExtents(ll.X, ll.Y, ur.X, ur.Y);
}
//----------------------------------------------------------------------------------------
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//
// �� �ߣ�
//
//
// �� �ڣ�2007.05.#
//
//-----------------------------------------------------------------------------------------
public String createSheboygon3D()
{
StringBuilder outString = new StringBuilder();
outString.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
outString.Append("<kml xmlns=\"http://earth.google.com/kml/2.0\">");
outString.Append("<Document>");
outString.Append("<Style id=\"muniStyle\">");
outString.Append("<PolyStyle>");
outString.Append("<outline>1</outline>");
outString.Append("<fill>1</fill>");
outString.Append("<color>70000000</color>");
outString.Append("</PolyStyle>");
outString.Append("<LineStyle>");
outString.Append("<color>ff0000ff</color>");
outString.Append("</LineStyle>");
outString.Append("</Style>");
outString.Append("<Folder>");
outString.Append("<description>Sheboygan Building Footprints 3D</description>");
outString.Append("<name>Sheboygan Bulding Model</name>");
outString.Append("<visibility>0</visibility>");
outString.Append("<open>0</open>");
MgGeometryFactory geoFactory = new MgGeometryFactory();
MgFeatureService featureService = (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService);
MgResourceIdentifier resId = new MgResourceIdentifier("Library://MgTutorial/Data/Sheboygan3D.FeatureSource");
MgFeatureReader featureReader = featureService.SelectFeatures(resId, "Sheboygan3D", null);
MgAgfReaderWriter geoReader = new MgAgfReaderWriter();
outString.Append("<Placemark>");
outString.Append("<name>3D Model</name>");
outString.Append("<description>Sheboygan Building Model Area</description>");
outString.Append("<styleUrl>#muniStyle</styleUrl>");
PolygonWriter polygonWriter = new PolygonWriter();
polygonWriter.StartEmitConsolidatedGeometry();
while (featureReader.ReadNext())
{
MgByteReader byteReader = featureReader.GetGeometry("Geometry");
double ht = featureReader.GetDouble("HEIGHT");
MgGeometry geo = geoReader.Read(byteReader);
polygonWriter.WriteConsolidatedGeometryRing(geo, 1, ht * 0.1);
}
featureReader.Close();
polygonWriter.EndEmitConsolidatedGeometry();
outString.Append(polygonWriter.getOutputString());
outString.Append("</Placemark>");
outString.Append("</Folder>");
outString.Append("</Document>");
outString.Append("</kml>");
return outString.ToString();
}
private void btnSelectDistrict1_Click(object sender, EventArgs e)
{
MgMapBase map = _viewer.GetMap();
MgLayerCollection layers = map.GetLayers();
MgLayerBase districts = layers.GetItem("Districts");
MgLayerBase parcels = layers.GetItem("Parcels");
//Query the geometry of district 1
MgFeatureQueryOptions districtQuery = new MgFeatureQueryOptions();
districtQuery.SetFilter("Autogenerated_SDF_ID = 1");
MgFeatureReader reader = districts.SelectFeatures(districtQuery);
MgGeometry districtGeom = null;
MgAgfReaderWriter agfRw = new MgAgfReaderWriter();
try
{
reader.ReadNext();
MgByteReader geomAgf = reader.GetGeometry(districts.GetFeatureGeometryName());
districtGeom = agfRw.Read(geomAgf);
}
finally
{
reader.Close();
}
//Now use this geometry as the basis of our 2nd query
MgFeatureQueryOptions parcelQuery = new MgFeatureQueryOptions();
parcelQuery.SetFilter("RNAME LIKE 'SCHMITT%'");
parcelQuery.SetSpatialFilter(parcels.GetFeatureGeometryName(), districtGeom, MgFeatureSpatialOperations.Inside);
//Select the features
reader = parcels.SelectFeatures(parcelQuery);
MgSelectionBase selection = _viewer.GetSelection();
try
{
selection.FromXml(""); //Clear existing selection data
selection.AddFeatures(parcels, reader, 0);
}
finally
{
reader.Close();
}
//Because we manipulated the active selection outside the viewer
//We need to call UpdateSelection() to instruct the viewer to
//re-render the active selection. The "true" parameter instructs
//the viewer to raise the SelectionChanged event as well, so that
//subscribers like the Property Pane get updated as well.
_viewer.UpdateSelection(true);
_viewer.RefreshMap();
}
private void btnCreateBuffer_Click(object sender, EventArgs e)
{
MgSelectionBase selection = _viewer.GetSelection();
MgReadOnlyLayerCollection layers = selection.GetLayers();
if (layers == null)
{
MessageBox.Show("Select a parcel");
return;
}
MgLayerBase parcels = null;
for (int i = 0; i < layers.GetCount(); i++)
{
MgLayerBase layer = layers.GetItem(i);
if (layer.Name == "Parcels")
{
parcels = layer;
break;
}
}
if (parcels == null)
{
MessageBox.Show("Select a parcel");
return;
}
int bufferRingSize = 100; // measured in metres
int bufferRingCount = 5;
// Set up some objects for coordinate conversion
MgMapBase map = _viewer.GetMap();
MgLayerCollection mapLayers = map.GetLayers();
MgMapViewerProvider provider = _viewer.GetProvider();
MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService);
//Casting to MgdFeatureService because we want to use convenience APIs
MgFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService);
String mapWktSrs = map.GetMapSRS();
MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter();
MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter();
MgCoordinateSystemFactory coordinateSystemFactory = new MgCoordinateSystemFactory();
MgCoordinateSystem srs = coordinateSystemFactory.Create(mapWktSrs);
MgMeasure srsMeasure = srs.GetMeasure();
string sessionId = Guid.NewGuid().ToString();
BufferHelper helper = new BufferHelper();
// Check for a buffer layer. If it exists, delete
// the current features.
// If it does not exist, create a feature source and
// a layer to hold the buffer.
MgdLayer bufferLayer = null;
int layerIndex = mapLayers.IndexOf("Buffer");
if (layerIndex < 0)
{
// The layer does not exist and must be created.
MgResourceIdentifier bufferFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//Buffer.FeatureSource");
helper.CreateBufferFeatureSource(featureService, mapWktSrs, bufferFeatureResId);
bufferLayer = helper.CreateBufferLayer(resourceService, bufferFeatureResId, sessionId);
mapLayers.Insert(0, bufferLayer);
}
else
{
bufferLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex);
bufferLayer.DeleteFeatures("ID like '%'");
}
// Get the selected features from the MgSelection object
MgFeatureReader featureReader = selection.GetSelectedFeatures(parcels, parcels.GetFeatureClassName(), false);
// Process each item in the MgFeatureReader. Get the
// geometries from all the selected features and
// merge them into a single geometry.
MgGeometryCollection inputGeometries = new MgGeometryCollection();
while (featureReader.ReadNext())
{
MgByteReader featureGeometryData = featureReader.GetGeometry(parcels.GetFeatureGeometryName());
MgGeometry featureGeometry = agfReaderWriter.Read(featureGeometryData);
inputGeometries.Add(featureGeometry);
}
MgGeometryFactory geometryFactory = new MgGeometryFactory();
MgGeometry mergedGeometries = geometryFactory.CreateMultiGeometry(inputGeometries);
// Add buffer features to the temporary feature source.
// Create multiple concentric buffers to show area.
// If the stylization for the layer draws the features
// partially transparent, the concentric rings will be
// progressively darker towards the center.
// The stylization is set in the layer template file, which
// is used in function CreateBufferLayer().
for (int bufferRing = 0; bufferRing < bufferRingCount; bufferRing++)
{
double bufferDist = srs.ConvertMetersToCoordinateSystemUnits(bufferRingSize * (bufferRing + 1));
MgGeometry bufferGeometry = mergedGeometries.Buffer(bufferDist, srsMeasure);
MgPropertyCollection properties = new MgPropertyCollection();
properties.Add(new MgGeometryProperty("BufferGeometry", agfReaderWriter.Write(bufferGeometry)));
MgFeatureReader fr = bufferLayer.InsertFeatures(properties);
fr.Close();
}
bufferLayer.SetVisible(true);
bufferLayer.ForceRefresh();
bufferLayer.SetDisplayInLegend(true);
MessageBox.Show("Buffer created");
_viewer.RefreshMap();
IMapLegend legend = Shell.Instance.Legend;
if (legend != null)
legend.RefreshLegend();
}
//----------------------------------------------------------------------------------------
// �� �ܣ� ��Mapguide���ص�����ת��ΪKML
//
// �� �ߣ�
//
//
// �� �ڣ�2007.05.#
//
//-----------------------------------------------------------------------------------------
public String createQueryPolygon(String queryString)
{
StringBuilder outString = new StringBuilder();
outString.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
MgFeatureService featureservice = (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService);
MgFeatureQueryOptions queryOptions = new MgFeatureQueryOptions();
queryOptions.SetFilter(queryString);
MgResourceIdentifier resId = new MgResourceIdentifier("Library://Exercise/Data/SheboyganParcels.FeatureSource");
MgFeatureReader featureReader = featureservice.SelectFeatures(resId, "SheboyganParcels", queryOptions);
outString.Append("<overlays>");
MgAgfReaderWriter geoReader = new MgAgfReaderWriter();
while (featureReader.ReadNext())
{
String keyVal = featureReader.GetString("RTYPE");
MgByteReader byteReader = featureReader.GetGeometry("Geometry");
MgPolygon polygon = (MgPolygon)geoReader.Read(byteReader);
MgPoint point = polygon.GetCentroid();
double x = point.GetCoordinate().GetX();
double y = point.GetCoordinate().GetY();
outString.Append("<polygon info=\"" + keyVal + "\" cent_x=\"" + x + "\" cent_y=\"" + y + "\">");
MgLinearRing linearRing = polygon.GetExteriorRing();
MgCoordinateIterator coordIter = linearRing.GetCoordinates();
outString.Append("<points>");
while (coordIter.MoveNext())
{
MgCoordinate coord = coordIter.GetCurrent();
if (coord != null)
{
outString.Append("<point lng=\"" + coord.GetX() + "\" lat=\"" + coord.GetY() + "\"/>");
}
}
outString.Append("</points>");
outString.Append("</polygon>");
}
featureReader.Close();
outString.Append("</overlays>");
return outString.ToString();
}
private void btnFindFeaturesInBuffer_Click(object sender, EventArgs e)
{
MgSelectionBase selection = _viewer.GetSelection();
MgReadOnlyLayerCollection selectedLayers = selection.GetLayers();
if (selectedLayers == null)
{
MessageBox.Show("Select a parcel");
return;
}
MgLayerBase parcels = null;
for (int i = 0; i < selectedLayers.GetCount(); i++)
{
MgLayerBase layer = selectedLayers.GetItem(i);
if (layer.Name == "Parcels")
{
parcels = layer;
break;
}
}
if (parcels == null)
{
MessageBox.Show("Select a parcel");
return;
}
int bufferRingSize = 500; // measured in metres
// Set up some objects for coordinate conversion
MgMapBase map = _viewer.GetMap();
MgLayerCollection mapLayers = map.GetLayers();
MgMapViewerProvider provider = _viewer.GetProvider();
MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService);
//Casting to MgdFeatureService because we want to use convenience APIs
MgFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService);
string sessionId = Guid.NewGuid().ToString();
String mapWktSrs = map.GetMapSRS();
MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter();
MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter();
MgCoordinateSystemFactory coordinateSystemFactory = new MgCoordinateSystemFactory();
MgCoordinateSystem srs = coordinateSystemFactory.Create(mapWktSrs);
MgMeasure srsMeasure = srs.GetMeasure();
// Check for a buffer layer. If it exists, delete
// the current features.
// If it does not exist, create a feature source and
// a layer to hold the buffer.
BufferHelper helper = new BufferHelper();
MgdLayer bufferLayer = null;
int layerIndex = map.GetLayers().IndexOf("Buffer");
if (layerIndex < 0)
{
// The layer does not exist and must be created.
MgResourceIdentifier bufferFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//Buffer.FeatureSource");
helper.CreateBufferFeatureSource(featureService, mapWktSrs, bufferFeatureResId);
bufferLayer = helper.CreateBufferLayer(resourceService, bufferFeatureResId, sessionId);
map.GetLayers().Insert(0, bufferLayer);
}
else
{
bufferLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex);
bufferLayer.DeleteFeatures("ID like '%'");
}
// Check for a parcel marker layer. If it exists, delete
// the current features.
// If it does not exist, create a feature source and
// a layer to hold the parcel markers.
MgdLayer parcelMarkerLayer = null;
layerIndex = map.GetLayers().IndexOf("ParcelMarker");
if (layerIndex < 0)
{
MgResourceIdentifier parcelFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//ParcelMarker.FeatureSource");
helper.CreateParcelMarkerFeatureSource(featureService, mapWktSrs, parcelFeatureResId);
parcelMarkerLayer = helper.CreateParcelMarkerLayer(resourceService, parcelFeatureResId, sessionId);
map.GetLayers().Insert(0, parcelMarkerLayer);
}
else
{
parcelMarkerLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex);
parcelMarkerLayer.DeleteFeatures("ID like '%'");
}
// Check each layer in the selection.
for (int i = 0; i < selectedLayers.GetCount(); i++)
{
// Only check selected features in the Parcels layer.
MgdLayer layer = (MgdLayer)selectedLayers.GetItem(i);
if (layer.GetName() == "Parcels")
{
string geomName = layer.GetFeatureGeometryName();
System.Diagnostics.Trace.TraceInformation("Marking all parcels inside the buffer that are of type 'MFG'");
MgFeatureReader featureReader = selection.GetSelectedFeatures(layer, layer.GetFeatureClassName(), false);
// Process each item in the MgFeatureReader. Get the
// geometries from all the selected features and
// merge them into a single geometry.
MgGeometryCollection inputGeometries = new MgGeometryCollection();
while (featureReader.ReadNext())
{
MgByteReader featureGeometryData = featureReader.GetGeometry(geomName);
MgGeometry featureGeometry = agfReaderWriter.Read(featureGeometryData);
inputGeometries.Add(featureGeometry);
}
MgGeometryFactory geometryFactory = new MgGeometryFactory();
MgGeometry mergedGeometries = geometryFactory.CreateMultiGeometry(inputGeometries);
// Create a buffer from the merged geometries
double bufferDist = srs.ConvertMetersToCoordinateSystemUnits(bufferRingSize);
MgGeometry bufferGeometry = mergedGeometries.Buffer(bufferDist, srsMeasure);
// Create a filter to select parcels within the buffer. Combine
// a basic filter and a spatial filter to select all parcels
// within the buffer that are of type "MFG".
MgFeatureQueryOptions queryOptions = new MgFeatureQueryOptions();
queryOptions.SetFilter("RTYPE = 'MFG'");
queryOptions.SetSpatialFilter(geomName, bufferGeometry, MgFeatureSpatialOperations.Inside);
featureReader = layer.SelectFeatures(queryOptions);
// Get the features from the feature source,
// determine the centroid of each selected feature, and
// add a point to the ParcelMarker layer to mark the
// centroid.
// Collect all the points into an MgFeatureCommandCollection,
// so they can all be added in one operation.
MgFeatureCommandCollection parcelMarkerCommands = new MgFeatureCommandCollection();
int inserted = 0;
while (featureReader.ReadNext())
{
MgByteReader byteReader = featureReader.GetGeometry(geomName);
MgGeometry geometry = agfReaderWriter.Read(byteReader);
MgPoint point = geometry.GetCentroid();
// Create an insert command for this parcel.
MgPropertyCollection properties = new MgPropertyCollection();
properties.Add(new MgGeometryProperty("ParcelLocation", agfReaderWriter.Write(point)));
//parcelMarkerCommands.Add(new MgInsertFeatures("ParcelMarkerClass", properties));
MgFeatureReader fr = parcelMarkerLayer.InsertFeatures(properties);
fr.Close();
inserted++;
}
featureReader.Close();
if (inserted == 0)
{
MessageBox.Show("No parcels within the buffer area match.");
return;
}
// Create a feature in the buffer feature source to show the area covered by the buffer.
MgPropertyCollection props = new MgPropertyCollection();
props.Add(new MgGeometryProperty("BufferGeometry", agfReaderWriter.Write(bufferGeometry)));
bufferLayer.InsertFeatures(props);
// Ensure that the buffer layer is visible and in the legend.
bufferLayer.SetVisible(true);
bufferLayer.ForceRefresh();
bufferLayer.SetDisplayInLegend(true);
parcelMarkerLayer.SetVisible(true);
parcelMarkerLayer.ForceRefresh();
MessageBox.Show("Done");
_viewer.RefreshMap();
IMapLegend legend = Shell.Instance.Legend;
if (legend != null)
{
legend.RefreshLegend();
}
}
}
}
//----------------------------------------------------------------------------------------
// �� �ܣ� ��Mapguide���ص�����ת��ΪKML
//
// �� �ߣ�
//
//
// �� �ڣ�2007.05.#
//
//-----------------------------------------------------------------------------------------
public String createMuniPolygons()
{
MgGeometryFactory geoFactory = new MgGeometryFactory();
StringBuilder outString = new StringBuilder();
outString.Append("<?xml version=\"1.0\"?>");
//ͨ������MapGuide API��ȡ�ض���Ҫ��
MgFeatureService featureService = (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService);
MgResourceIdentifier resId = new MgResourceIdentifier("Library://Exercise/Data/WheatonMunicipalities.FeatureSource");
MgFeatureReader featureReader = featureService.SelectFeatures(resId, "WheatonMunicipalities", null);
//���������ΪGoogle Map�ܹ�ʶ��� XML.
outString.Append("<overlays>");
MgAgfReaderWriter geoWriter = new MgAgfReaderWriter();
while (featureReader.ReadNext())
{
String muniName = featureReader.GetString("MUNINAME");
MgByteReader byteReader = featureReader.GetGeometry("Geometry");
MgPolygon polygon = (MgPolygon)geoWriter.Read(byteReader);
MgPoint point = polygon.GetCentroid();
double x = point.GetCoordinate().GetX();
double y = point.GetCoordinate().GetY();
outString.Append("<polygon info=\"" + muniName + "\" cent_x=\"" + x + "\" cent_y=\"" + y + "\">");
MgLinearRing linearRing = polygon.GetExteriorRing();
MgCoordinateIterator coordIterator = linearRing.GetCoordinates();
outString.Append("<points>");
while (coordIterator.MoveNext())
{
MgCoordinate coord = coordIterator.GetCurrent();
if (coord != null)
{
outString.Append("<point lng=\"" + coord.GetX() + "\" lat=\"" + coord.GetY() + "\" />");
}
}
outString.Append("</points>");
outString.Append("</polygon>");
}
featureReader.Close();
outString.Append("</overlays>");
return outString.ToString();
}
private void btnCreate_Click(object sender, EventArgs e)
{
btnCreate.Enabled = false;
try
{
var layerName = txtBufferLayer.Text.Trim();
if (string.IsNullOrEmpty(layerName))
{
MessageBox.Show(Strings.MsgEnterNameForLayer);
return;
}
if (lstLayers.SelectedItems.Count == 0)
{
MessageBox.Show(Strings.MsgIncludeLayersToBuffer);
return;
}
var map = _viewer.GetMap();
var layers = map.GetLayers();
var provider = _viewer.GetProvider();
//From here, it's the same logic as buffer.aspx in .net MapGuide AJAX viewer
MgResourceIdentifier fsId = new MgResourceIdentifier("Session:" + _sessionId + "//" + txtBufferLayer.Text + "_Buffer.FeatureSource"); //NOXLATE
MgResourceIdentifier ldfId = new MgResourceIdentifier("Session:" + _sessionId + "//" + txtBufferLayer.Text + "_Buffer.LayerDefinition"); //NOXLATE
MgLayerBase layer = Util.FindLayer(layers, txtBufferLayer.Text);
string[] layerNames = GetLayerNames();
double distance = Convert.ToDouble(numBufferDistance.Value);
MeasurementUnit bUnits = (MeasurementUnit)cmbUnits.SelectedItem;
switch (bUnits)
{
case MeasurementUnit.Feet:
distance *= 0.30480;
break;
case MeasurementUnit.Kilometers:
distance *= 1000;
break;
case MeasurementUnit.Miles:
distance *= 1609.35;
break;
}
String srsDefMap = Util.GetMapSrs(map);
MgCoordinateSystem srsMap = provider.GetMapCoordinateSystem();
string mapSrsUnits = "";
bool arbitraryMapSrs = (srsMap.GetType() == MgCoordinateSystemType.Arbitrary);
if (arbitraryMapSrs)
mapSrsUnits = srsMap.GetUnits();
String xtrans = String.Format("{0:x2}", ((int)(255 * Convert.ToInt32(numFillTransparency.Value) / 100))); //NOXLATE
var lineColor = Util.ToHtmlColor(pnlBorderColor.BackColor);
var foreColor = Util.ToHtmlColor(pnlFillColor.BackColor);
var backColor = Util.ToHtmlColor(pnlFillBackColor.BackColor);
String layerTempl = string.Format(Properties.Resources.AreaLayerDef,
fsId.ToString(),
"BufferSchema:Buffer", //NOXLATE
"GEOM", //NOXLATE
cmbFillPattern.SelectedItem,
xtrans + foreColor,
((0 != 1/*transparent*/) ? "ff" : "00") + backColor, //NOXLATE
cmbBorderPattern.SelectedItem,
numLineThickness.Value.ToString(NumberFormatInfo.InvariantInfo),
lineColor
);
byte[] bytes = Encoding.UTF8.GetBytes(layerTempl);
MgByteSource src = new MgByteSource(bytes, bytes.Length);
MgByteReader layerDefContent = src.GetReader();
_resSvc.SetResource(ldfId, layerDefContent, null);
bool newBuffer = false;
if (layer == null)
{
newBuffer = true;
//Targetting a new layer. create a data source for it
//
MgClassDefinition classDef = new MgClassDefinition();
classDef.SetName("Buffer"); //NOXLATE
classDef.SetDescription("Feature class for buffer layer"); //NOXLATE
classDef.SetDefaultGeometryPropertyName("GEOM"); //NOXLATE
//Set KEY property
MgDataPropertyDefinition prop = new MgDataPropertyDefinition("KEY"); //NOXLATE
prop.SetDataType(MgPropertyType.Int32);
prop.SetAutoGeneration(true);
prop.SetReadOnly(true);
classDef.GetIdentityProperties().Add(prop);
classDef.GetProperties().Add(prop);
//Set ID property. Hold this segment ID
prop = new MgDataPropertyDefinition("ID"); //NOXLATE
prop.SetDataType(MgPropertyType.Int32);
classDef.GetProperties().Add(prop);
//Set geometry property
MgGeometricPropertyDefinition geomProp = new MgGeometricPropertyDefinition("GEOM"); //NOXLATE
//prop.SetGeometryTypes(MgFeatureGeometricType.mfgtSurface); //TODO use the constant when exposed
geomProp.SetGeometryTypes(4);
classDef.GetProperties().Add(geomProp);
//Create the schema
MgFeatureSchema schema = new MgFeatureSchema("BufferSchema", "Temporary buffer schema"); //NOXLATE
schema.GetClasses().Add(classDef);
//finally, creation of the feature source
MgFileFeatureSourceParams sdfParams = new MgFileFeatureSourceParams("OSGeo.SDF", "LatLong", map.GetMapSRS(), schema); //NOXLATE
_featSvc.CreateFeatureSource(fsId, sdfParams);
//Add layer to map
layer = provider.CreateLayer(ldfId);
layer.SetName(txtBufferLayer.Text);
layer.SetLegendLabel(txtBufferLayer.Text);
layer.SetDisplayInLegend(true);
layer.SetSelectable(true);
layers.Insert(0, layer);
}
else
{
//data source already exist. clear its content
//
Util.ClearDataSource(_featSvc, fsId, "BufferSchema:Buffer"); //NOXLATE
}
var sel = _viewer.GetSelection();
var selLayers = sel.GetLayers();
MgAgfReaderWriter agfRW = new MgAgfReaderWriter();
MgGeometryCollection bufferGeometries = new MgGeometryCollection();
MgGeometry geomBuffer;
MgFeatureCommandCollection commands = new MgFeatureCommandCollection();
int featId = 0;
MgBatchPropertyCollection propCollection = new MgBatchPropertyCollection();
int excludedLayers = 0;
MgCoordinateSystem srsDs = null;
MgGeometryCollection inputGeometries = new MgGeometryCollection();
int bufferFeatures = 0;
for (int li = 0; li < selLayers.GetCount(); li++)
{
MgLayerBase selLayer = selLayers.GetItem(li);
bool inputLayer = false;
String selLayerName = selLayer.GetName();
for (int il = 0; il < layerNames.Length; il++)
{
if (layerNames[il].Equals(selLayerName))
{
inputLayer = true;
break;
}
}
if (inputLayer == false)
{
continue;
}
// get the data source SRS
//
MgResourceIdentifier featSourceId = new MgResourceIdentifier(selLayer.GetFeatureSourceId());
MgSpatialContextReader ctxs = _featSvc.GetSpatialContexts(featSourceId, false);
String srsDefDs = string.Empty;
if (ctxs != null && ctxs.ReadNext())
srsDefDs = ctxs.GetCoordinateSystemWkt();
if (srsDefDs == null || srsDefDs.Length == 0)
{
excludedLayers++;
continue;
}
var srsFactory = new MgCoordinateSystemFactory();
srsDs = srsFactory.Create(srsDefDs);
bool arbitraryDsSrs = (srsDs.GetType() == MgCoordinateSystemType.Arbitrary);
String dsSrsUnits = string.Empty;
if (arbitraryDsSrs)
dsSrsUnits = srsDs.GetUnits();
// exclude layer if:
// the map is non-arbitrary and the layer is arbitrary or vice-versa
// or
// layer and map are both arbitrary but have different units
//
if ((arbitraryDsSrs != arbitraryMapSrs) || (arbitraryDsSrs && (dsSrsUnits != mapSrsUnits)))
{
excludedLayers++;
continue;
}
// calculate distance in the data source SRS units
//
double dist = srsDs.ConvertMetersToCoordinateSystemUnits(distance);
// calculate great circle unless data source srs is arbitrary
MgCoordinateSystemMeasure measure;
if (!arbitraryDsSrs)
measure = srsDs.GetMeasure();
else
measure = null;
// create a SRS transformer if necessary
MgCoordinateSystemTransform srsXform;
if (!srsDefDs.Equals(srsDefMap))
srsXform = srsFactory.GetTransform(srsDs, srsMap);
else
srsXform = null;
String featureClassName = selLayer.GetFeatureClassName();
String filter = sel.GenerateFilter(selLayer, featureClassName);
if (filter == null || filter.Length == 0)
continue;
MgFeatureQueryOptions query = new MgFeatureQueryOptions();
query.SetFilter(filter);
MgResourceIdentifier featureSource = new MgResourceIdentifier(selLayer.GetFeatureSourceId());
MgFeatureReader features = _featSvc.SelectFeatures(featureSource, featureClassName, query);
if (features.ReadNext())
{
MgClassDefinition classDef = features.GetClassDefinition();
String geomPropName = classDef.GetDefaultGeometryPropertyName();
do
{
MgByteReader geomReader = features.GetGeometry(geomPropName);
MgGeometry geom = agfRW.Read(geomReader);
if (!chkMergeBuffers.Checked)
{
geomBuffer = geom.Buffer(dist, measure);
if (geomBuffer != null)
{
if (srsXform != null)
geomBuffer = (MgGeometry)geomBuffer.Transform(srsXform);
Util.AddFeatureToCollection(propCollection, agfRW, featId++, geomBuffer);
bufferFeatures++;
}
}
else
{
if (srsXform != null)
geom = (MgGeometry)geom.Transform(srsXform);
inputGeometries.Add(geom);
}
}
while (features.ReadNext());
features.Close();
}
}
if (chkMergeBuffers.Checked)
{
if (inputGeometries.GetCount() > 0)
{
double dist = srsMap.ConvertMetersToCoordinateSystemUnits(distance);
MgCoordinateSystemMeasure measure;
if (!arbitraryMapSrs)
measure = srsMap.GetMeasure();
else
measure = null;
MgGeometryFactory geomFactory = new MgGeometryFactory();
geomBuffer = geomFactory.CreateMultiGeometry(inputGeometries).Buffer(dist, measure);
if (geomBuffer != null)
{
Util.AddFeatureToCollection(propCollection, agfRW, featId, geomBuffer);
bufferFeatures = 1;
}
}
}
if (propCollection.GetCount() > 0)
{
commands.Add(new MgInsertFeatures("BufferSchema:Buffer", propCollection)); //NOXLATE
//Insert the features in the temporary data source
//
Util.ReleaseReader(_featSvc.UpdateFeatures(fsId, commands, false), commands);
}
// Save the new map state
//
layer.ForceRefresh();
_viewer.RefreshMap();
//build report message
if (newBuffer)
MessageBox.Show(string.Format(Strings.MsgBufferLayerCreated, txtBufferLayer.Text));
else
MessageBox.Show(string.Format(Strings.MsgBufferLayerUpdated, txtBufferLayer.Text));
}
finally
{
btnCreate.Enabled = true;
}
}
private void btnCreate_Click(object sender, EventArgs e)
{
btnCreate.Enabled = false;
try
{
var layerName = txtBufferLayer.Text.Trim();
if (string.IsNullOrEmpty(layerName))
{
MessageBox.Show(Strings.MsgEnterNameForLayer);
return;
}
if (lstLayers.SelectedItems.Count == 0)
{
MessageBox.Show(Strings.MsgIncludeLayersToBuffer);
return;
}
var map = _viewer.GetMap();
var layers = map.GetLayers();
var provider = _viewer.GetProvider();
//From here, it's the same logic as buffer.aspx in .net MapGuide AJAX viewer
MgResourceIdentifier fsId = new MgResourceIdentifier("Session:" + _sessionId + "//" + txtBufferLayer.Text + "_Buffer.FeatureSource"); //NOXLATE
MgResourceIdentifier ldfId = new MgResourceIdentifier("Session:" + _sessionId + "//" + txtBufferLayer.Text + "_Buffer.LayerDefinition"); //NOXLATE
MgLayerBase layer = Util.FindLayer(layers, txtBufferLayer.Text);
string[] layerNames = GetLayerNames();
double distance = Convert.ToDouble(numBufferDistance.Value);
MeasurementUnit bUnits = (MeasurementUnit)cmbUnits.SelectedItem;
switch (bUnits)
{
case MeasurementUnit.Feet:
distance *= 0.30480;
break;
case MeasurementUnit.Kilometers:
distance *= 1000;
break;
case MeasurementUnit.Miles:
distance *= 1609.35;
break;
}
String srsDefMap = Util.GetMapSrs(map);
MgCoordinateSystem srsMap = provider.GetMapCoordinateSystem();
string mapSrsUnits = "";
bool arbitraryMapSrs = (srsMap.GetType() == MgCoordinateSystemType.Arbitrary);
if (arbitraryMapSrs)
{
mapSrsUnits = srsMap.GetUnits();
}
String xtrans = String.Format("{0:x2}", ((int)(255 * Convert.ToInt32(numFillTransparency.Value) / 100))); //NOXLATE
var lineColor = Util.ToHtmlColor(pnlBorderColor.BackColor);
var foreColor = Util.ToHtmlColor(pnlFillColor.BackColor);
var backColor = Util.ToHtmlColor(pnlFillBackColor.BackColor);
String layerTempl = string.Format(Properties.Resources.AreaLayerDef,
fsId.ToString(),
"BufferSchema:Buffer", //NOXLATE
"GEOM", //NOXLATE
cmbFillPattern.SelectedItem,
xtrans + foreColor,
((0 != 1 /*transparent*/) ? "ff" : "00") + backColor, //NOXLATE
cmbBorderPattern.SelectedItem,
numLineThickness.Value.ToString(NumberFormatInfo.InvariantInfo),
lineColor
);
byte[] bytes = Encoding.UTF8.GetBytes(layerTempl);
MgByteSource src = new MgByteSource(bytes, bytes.Length);
MgByteReader layerDefContent = src.GetReader();
_resSvc.SetResource(ldfId, layerDefContent, null);
bool newBuffer = false;
if (layer == null)
{
newBuffer = true;
//Targetting a new layer. create a data source for it
//
MgClassDefinition classDef = new MgClassDefinition();
classDef.SetName("Buffer"); //NOXLATE
classDef.SetDescription("Feature class for buffer layer"); //NOXLATE
classDef.SetDefaultGeometryPropertyName("GEOM"); //NOXLATE
//Set KEY property
MgDataPropertyDefinition prop = new MgDataPropertyDefinition("KEY"); //NOXLATE
prop.SetDataType(MgPropertyType.Int32);
prop.SetAutoGeneration(true);
prop.SetReadOnly(true);
classDef.GetIdentityProperties().Add(prop);
classDef.GetProperties().Add(prop);
//Set ID property. Hold this segment ID
prop = new MgDataPropertyDefinition("ID"); //NOXLATE
prop.SetDataType(MgPropertyType.Int32);
classDef.GetProperties().Add(prop);
//Set geometry property
MgGeometricPropertyDefinition geomProp = new MgGeometricPropertyDefinition("GEOM"); //NOXLATE
//prop.SetGeometryTypes(MgFeatureGeometricType.mfgtSurface); //TODO use the constant when exposed
geomProp.SetGeometryTypes(4);
classDef.GetProperties().Add(geomProp);
//Create the schema
MgFeatureSchema schema = new MgFeatureSchema("BufferSchema", "Temporary buffer schema"); //NOXLATE
schema.GetClasses().Add(classDef);
//finally, creation of the feature source
MgFileFeatureSourceParams sdfParams = new MgFileFeatureSourceParams("OSGeo.SDF", "LatLong", map.GetMapSRS(), schema); //NOXLATE
_featSvc.CreateFeatureSource(fsId, sdfParams);
//Add layer to map
layer = provider.CreateLayer(ldfId);
layer.SetName(txtBufferLayer.Text);
layer.SetLegendLabel(txtBufferLayer.Text);
layer.SetDisplayInLegend(true);
layer.SetSelectable(true);
layers.Insert(0, layer);
}
else
{
//data source already exist. clear its content
//
Util.ClearDataSource(_featSvc, fsId, "BufferSchema:Buffer"); //NOXLATE
}
var sel = _viewer.GetSelection();
var selLayers = sel.GetLayers();
MgAgfReaderWriter agfRW = new MgAgfReaderWriter();
MgGeometryCollection bufferGeometries = new MgGeometryCollection();
MgGeometry geomBuffer;
MgFeatureCommandCollection commands = new MgFeatureCommandCollection();
int featId = 0;
MgBatchPropertyCollection propCollection = new MgBatchPropertyCollection();
int excludedLayers = 0;
MgCoordinateSystem srsDs = null;
MgGeometryCollection inputGeometries = new MgGeometryCollection();
int bufferFeatures = 0;
for (int li = 0; li < selLayers.GetCount(); li++)
{
MgLayerBase selLayer = selLayers.GetItem(li);
bool inputLayer = false;
String selLayerName = selLayer.GetName();
for (int il = 0; il < layerNames.Length; il++)
{
if (layerNames[il].Equals(selLayerName))
{
inputLayer = true;
break;
}
}
if (inputLayer == false)
{
continue;
}
// get the data source SRS
//
MgResourceIdentifier featSourceId = new MgResourceIdentifier(selLayer.GetFeatureSourceId());
MgSpatialContextReader ctxs = _featSvc.GetSpatialContexts(featSourceId, false);
String srsDefDs = string.Empty;
if (ctxs != null && ctxs.ReadNext())
{
srsDefDs = ctxs.GetCoordinateSystemWkt();
}
if (srsDefDs == null || srsDefDs.Length == 0)
{
excludedLayers++;
continue;
}
var srsFactory = new MgCoordinateSystemFactory();
srsDs = srsFactory.Create(srsDefDs);
bool arbitraryDsSrs = (srsDs.GetType() == MgCoordinateSystemType.Arbitrary);
String dsSrsUnits = string.Empty;
if (arbitraryDsSrs)
{
dsSrsUnits = srsDs.GetUnits();
}
// exclude layer if:
// the map is non-arbitrary and the layer is arbitrary or vice-versa
// or
// layer and map are both arbitrary but have different units
//
if ((arbitraryDsSrs != arbitraryMapSrs) || (arbitraryDsSrs && (dsSrsUnits != mapSrsUnits)))
{
excludedLayers++;
continue;
}
// calculate distance in the data source SRS units
//
double dist = srsDs.ConvertMetersToCoordinateSystemUnits(distance);
// calculate great circle unless data source srs is arbitrary
MgCoordinateSystemMeasure measure;
if (!arbitraryDsSrs)
{
measure = srsDs.GetMeasure();
}
else
{
measure = null;
}
// create a SRS transformer if necessary
MgCoordinateSystemTransform srsXform;
if (!srsDefDs.Equals(srsDefMap))
{
srsXform = srsFactory.GetTransform(srsDs, srsMap);
}
else
{
srsXform = null;
}
String featureClassName = selLayer.GetFeatureClassName();
String filter = sel.GenerateFilter(selLayer, featureClassName);
if (filter == null || filter.Length == 0)
{
continue;
}
MgFeatureQueryOptions query = new MgFeatureQueryOptions();
query.SetFilter(filter);
MgResourceIdentifier featureSource = new MgResourceIdentifier(selLayer.GetFeatureSourceId());
MgFeatureReader features = _featSvc.SelectFeatures(featureSource, featureClassName, query);
if (features.ReadNext())
{
MgClassDefinition classDef = features.GetClassDefinition();
String geomPropName = classDef.GetDefaultGeometryPropertyName();
do
{
MgByteReader geomReader = features.GetGeometry(geomPropName);
MgGeometry geom = agfRW.Read(geomReader);
if (!chkMergeBuffers.Checked)
{
geomBuffer = geom.Buffer(dist, measure);
if (geomBuffer != null)
{
if (srsXform != null)
{
geomBuffer = (MgGeometry)geomBuffer.Transform(srsXform);
}
Util.AddFeatureToCollection(propCollection, agfRW, featId++, geomBuffer);
bufferFeatures++;
}
}
else
{
if (srsXform != null)
{
geom = (MgGeometry)geom.Transform(srsXform);
}
inputGeometries.Add(geom);
}
}while (features.ReadNext());
features.Close();
}
}
if (chkMergeBuffers.Checked)
{
if (inputGeometries.GetCount() > 0)
{
double dist = srsMap.ConvertMetersToCoordinateSystemUnits(distance);
MgCoordinateSystemMeasure measure;
if (!arbitraryMapSrs)
{
measure = srsMap.GetMeasure();
}
else
{
measure = null;
}
MgGeometryFactory geomFactory = new MgGeometryFactory();
geomBuffer = geomFactory.CreateMultiGeometry(inputGeometries).Buffer(dist, measure);
if (geomBuffer != null)
{
Util.AddFeatureToCollection(propCollection, agfRW, featId, geomBuffer);
bufferFeatures = 1;
}
}
}
if (propCollection.GetCount() > 0)
{
commands.Add(new MgInsertFeatures("BufferSchema:Buffer", propCollection)); //NOXLATE
//Insert the features in the temporary data source
//
Util.ReleaseReader(_featSvc.UpdateFeatures(fsId, commands, false), commands);
}
// Save the new map state
//
layer.ForceRefresh();
_viewer.RefreshMap();
//build report message
if (newBuffer)
{
MessageBox.Show(string.Format(Strings.MsgBufferLayerCreated, txtBufferLayer.Text));
}
else
{
MessageBox.Show(string.Format(Strings.MsgBufferLayerUpdated, txtBufferLayer.Text));
}
}
finally
{
btnCreate.Enabled = true;
}
}
public LocalNativeRecord(MgReader reader, FixedWKTReader mgReader, MgAgfReaderWriter agfRw, MgWktReaderWriter wktRw)
{
for (int i = 0; i < reader.GetPropertyCount(); i++)
{
string name = reader.GetPropertyName(i);
_ordinalMap[i] = name;
var pt = (PropertyValueType)reader.GetPropertyType(name);
switch (pt)
{
case PropertyValueType.Blob:
_values[name] = new BlobValue();
break;
case PropertyValueType.Boolean:
_values[name] = new BooleanValue();
break;
case PropertyValueType.Byte:
_values[name] = new ByteValue();
break;
case PropertyValueType.Clob:
_values[name] = new ClobValue();
break;
case PropertyValueType.DateTime:
_values[name] = new DateTimeValue();
break;
case PropertyValueType.Double:
_values[name] = new DoubleValue();
break;
case PropertyValueType.Feature:
_values[name] = new FeatureValue();
break;
case PropertyValueType.Geometry:
_values[name] = new GeometryValue();
break;
case PropertyValueType.Int16:
_values[name] = new Int16Value();
break;
case PropertyValueType.Int32:
_values[name] = new Int32Value();
break;
case PropertyValueType.Int64:
_values[name] = new Int64Value();
break;
case PropertyValueType.Raster:
_values[name] = new RasterValue();
break;
case PropertyValueType.Single:
_values[name] = new SingleValue();
break;
case PropertyValueType.String:
_values[name] = new StringValue();
break;
}
}
for (int i = 0; i < reader.GetPropertyCount(); i++)
{
string name = _ordinalMap[i];
GetByteReaderMethod getblob = () => { return reader.GetBLOB(name); };
GetByteReaderMethod getclob = () => { return reader.GetCLOB(name); };
GetByteReaderMethod getgeom = () => { return reader.GetGeometry(name); };
if (!reader.IsNull(name))
{
var pt = (PropertyValueType)reader.GetPropertyType(name);
switch (pt)
{
case PropertyValueType.Blob:
((BlobValue)_values[name]).Value = Utility.StreamAsArray(new MgReadOnlyStream(getblob));
break;
case PropertyValueType.Boolean:
((BooleanValue)_values[name]).Value = reader.GetBoolean(name);
break;
case PropertyValueType.Byte:
((ByteValue)_values[name]).Value = reader.GetByte(name);
break;
case PropertyValueType.Clob:
byte [] b = Utility.StreamAsArray(new MgReadOnlyStream(getclob));
((ClobValue)_values[name]).Value = Encoding.UTF8.GetChars(b);
break;
case PropertyValueType.DateTime:
((DateTimeValue)_values[name]).Value = Utility.ConvertMgDateTime(reader.GetDateTime(name));
break;
case PropertyValueType.Double:
((DoubleValue)_values[name]).Value = reader.GetDouble(name);
break;
//case PropertyValueType.Feature:
case PropertyValueType.Geometry:
try
{
//TODO: See if SWIG issues come into play here
var geom = agfRw.Read(reader.GetGeometry(name));
var wkt = wktRw.Write(geom);
((GeometryValue)_values[name]).Value = mgReader.Read(wkt);
}
catch //Invalid geometry fail!
{
((GeometryValue)_values[name]).SetNull();
}
break;
case PropertyValueType.Int16:
((Int16Value)_values[name]).Value = reader.GetInt16(name);
break;
case PropertyValueType.Int32:
((Int32Value)_values[name]).Value = reader.GetInt32(name);
break;
case PropertyValueType.Int64:
((Int64Value)_values[name]).Value = reader.GetInt64(name);
break;
case PropertyValueType.Single:
((SingleValue)_values[name]).Value = reader.GetSingle(name);
break;
case PropertyValueType.String:
((StringValue)_values[name]).Value = reader.GetString(name);
break;
}
}
}
}
private void bgGridLoader_DoWork(object sender, DoWorkEventArgs e)
{
var reader = (MgReader)e.Argument;
var wktRw = new MgWktReaderWriter();
var agfRw = new MgAgfReaderWriter();
var cls = _layer.GetClassDefinition();
var idProps = cls.GetIdentityProperties();
var idNames = new List <string>();
for (int i = 0; i < idProps.Count; i++)
{
var prop = idProps.GetItem(i);
idNames.Add(prop.Name);
}
_identityProps = idNames.ToArray();
var propNames = new List <string>();
int propCount = reader.GetPropertyCount();
//.net 2.0 compatibility hack for set-like behaviour
var skipProps = new Dictionary <int, int>();
for (int i = 0; i < propCount; i++)
{
var pt = reader.GetPropertyType(i);
if (pt == MgPropertyType.Blob ||
pt == MgPropertyType.Clob ||
pt == MgPropertyType.Feature ||
pt == MgPropertyType.Null ||
pt == MgPropertyType.Raster)
{
skipProps[i] = i;
}
else
{
var name = reader.GetPropertyName(i);
_propMap.Add(name, pt);
propNames.Add(name);
}
}
try
{
bgGridLoader.ReportProgress(-1, new InitGridAction()
{
ColumnNames = propNames.ToArray()
});
int read = 0;
while (reader.ReadNext())
{
object[] values = new object[propCount];
for (int i = 0; i < propCount; i++)
{
if (skipProps.ContainsKey(i))
{
continue;
}
if (reader.IsNull(i))
{
values[i] = null;
}
else
{
switch (reader.GetPropertyType(i))
{
case MgPropertyType.Boolean:
values[i] = reader.GetBoolean(i);
break;
case MgPropertyType.Byte:
values[i] = reader.GetByte(i);
break;
case MgPropertyType.DateTime:
values[i] = ToClrDateTime(reader.GetDateTime(i));
break;
case MgPropertyType.Decimal:
case MgPropertyType.Double:
values[i] = reader.GetDouble(i);
break;
case MgPropertyType.Geometry:
{
try
{
var agf = reader.GetGeometry(i);
var geom = agfRw.Read(agf);
var env = geom.Envelope();
var envLL = env.LowerLeftCoordinate;
var envUR = env.UpperRightCoordinate;
var wkt = wktRw.Write(geom);
values[i] = new BoxedGeometry()
{
Text = wkt,
GeomBounds = new Bounds()
{
LowerX = envLL.X,
LowerY = envLL.Y,
UpperX = envUR.X,
UpperY = envUR.Y
}
};
}
catch
{
values[i] = null;
}
}
break;
case MgPropertyType.Int16:
values[i] = reader.GetInt16(i);
break;
case MgPropertyType.Int32:
values[i] = reader.GetInt32(i);
break;
case MgPropertyType.Int64:
values[i] = reader.GetInt64(i);
break;
case MgPropertyType.Single:
values[i] = reader.GetSingle(i);
break;
case MgPropertyType.String:
values[i] = reader.GetString(i);
break;
}
}
}
bgGridLoader.ReportProgress(-1, new AddRow()
{
Values = values
});
read++;
if ((_limit > 0 && read >= _limit))
{
break;
}
}
}
finally
{
reader.Close();
wktRw.Dispose();
agfRw.Dispose();
wktRw = null;
agfRw = null;
}
}
private void btnFindFeaturesInBuffer_Click(object sender, EventArgs e)
{
MgSelectionBase selection = _viewer.GetSelection();
MgReadOnlyLayerCollection selectedLayers = selection.GetLayers();
if (selectedLayers == null)
{
MessageBox.Show("Select a parcel");
return;
}
MgLayerBase parcels = null;
for (int i = 0; i < selectedLayers.GetCount(); i++)
{
MgLayerBase layer = selectedLayers.GetItem(i);
if (layer.Name == "Parcels")
{
parcels = layer;
break;
}
}
if (parcels == null)
{
MessageBox.Show("Select a parcel");
return;
}
int bufferRingSize = 500; // measured in metres
// Set up some objects for coordinate conversion
MgMapBase map = _viewer.GetMap();
MgLayerCollection mapLayers = map.GetLayers();
MgMapViewerProvider provider = _viewer.GetProvider();
MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService);
//Casting to MgdFeatureService because we want to use convenience APIs
MgFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService);
string sessionId = Guid.NewGuid().ToString();
String mapWktSrs = map.GetMapSRS();
MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter();
MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter();
MgCoordinateSystemFactory coordinateSystemFactory = new MgCoordinateSystemFactory();
MgCoordinateSystem srs = coordinateSystemFactory.Create(mapWktSrs);
MgMeasure srsMeasure = srs.GetMeasure();
// Check for a buffer layer. If it exists, delete
// the current features.
// If it does not exist, create a feature source and
// a layer to hold the buffer.
BufferHelper helper = new BufferHelper();
MgdLayer bufferLayer = null;
int layerIndex = map.GetLayers().IndexOf("Buffer");
if (layerIndex < 0)
{
// The layer does not exist and must be created.
MgResourceIdentifier bufferFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//Buffer.FeatureSource");
helper.CreateBufferFeatureSource(featureService, mapWktSrs, bufferFeatureResId);
bufferLayer = helper.CreateBufferLayer(resourceService, bufferFeatureResId, sessionId);
map.GetLayers().Insert(0, bufferLayer);
}
else
{
bufferLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex);
bufferLayer.DeleteFeatures("ID like '%'");
}
// Check for a parcel marker layer. If it exists, delete
// the current features.
// If it does not exist, create a feature source and
// a layer to hold the parcel markers.
MgdLayer parcelMarkerLayer = null;
layerIndex = map.GetLayers().IndexOf("ParcelMarker");
if (layerIndex < 0)
{
MgResourceIdentifier parcelFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//ParcelMarker.FeatureSource");
helper.CreateParcelMarkerFeatureSource(featureService, mapWktSrs, parcelFeatureResId);
parcelMarkerLayer = helper.CreateParcelMarkerLayer(resourceService, parcelFeatureResId, sessionId);
map.GetLayers().Insert(0, parcelMarkerLayer);
}
else
{
parcelMarkerLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex);
parcelMarkerLayer.DeleteFeatures("ID like '%'");
}
// Check each layer in the selection.
for (int i = 0; i < selectedLayers.GetCount(); i++)
{
// Only check selected features in the Parcels layer.
MgdLayer layer = (MgdLayer)selectedLayers.GetItem(i);
if (layer.GetName() == "Parcels")
{
string geomName = layer.GetFeatureGeometryName();
System.Diagnostics.Trace.TraceInformation("Marking all parcels inside the buffer that are of type 'MFG'");
MgFeatureReader featureReader = selection.GetSelectedFeatures(layer, layer.GetFeatureClassName(), false);
// Process each item in the MgFeatureReader. Get the
// geometries from all the selected features and
// merge them into a single geometry.
MgGeometryCollection inputGeometries = new MgGeometryCollection();
while (featureReader.ReadNext())
{
MgByteReader featureGeometryData = featureReader.GetGeometry(geomName);
MgGeometry featureGeometry = agfReaderWriter.Read(featureGeometryData);
inputGeometries.Add(featureGeometry);
}
MgGeometryFactory geometryFactory = new MgGeometryFactory();
MgGeometry mergedGeometries = geometryFactory.CreateMultiGeometry(inputGeometries);
// Create a buffer from the merged geometries
double bufferDist = srs.ConvertMetersToCoordinateSystemUnits(bufferRingSize);
MgGeometry bufferGeometry = mergedGeometries.Buffer(bufferDist, srsMeasure);
// Create a filter to select parcels within the buffer. Combine
// a basic filter and a spatial filter to select all parcels
// within the buffer that are of type "MFG".
MgFeatureQueryOptions queryOptions = new MgFeatureQueryOptions();
queryOptions.SetFilter("RTYPE = 'MFG'");
queryOptions.SetSpatialFilter(geomName, bufferGeometry, MgFeatureSpatialOperations.Inside);
featureReader = layer.SelectFeatures(queryOptions);
// Get the features from the feature source,
// determine the centroid of each selected feature, and
// add a point to the ParcelMarker layer to mark the
// centroid.
// Collect all the points into an MgFeatureCommandCollection,
// so they can all be added in one operation.
MgFeatureCommandCollection parcelMarkerCommands = new MgFeatureCommandCollection();
int inserted = 0;
while (featureReader.ReadNext())
{
MgByteReader byteReader = featureReader.GetGeometry(geomName);
MgGeometry geometry = agfReaderWriter.Read(byteReader);
MgPoint point = geometry.GetCentroid();
// Create an insert command for this parcel.
MgPropertyCollection properties = new MgPropertyCollection();
properties.Add(new MgGeometryProperty("ParcelLocation", agfReaderWriter.Write(point)));
//parcelMarkerCommands.Add(new MgInsertFeatures("ParcelMarkerClass", properties));
MgFeatureReader fr = parcelMarkerLayer.InsertFeatures(properties);
fr.Close();
inserted++;
}
featureReader.Close();
if (inserted == 0)
{
MessageBox.Show("No parcels within the buffer area match.");
return;
}
// Create a feature in the buffer feature source to show the area covered by the buffer.
MgPropertyCollection props = new MgPropertyCollection();
props.Add(new MgGeometryProperty("BufferGeometry", agfReaderWriter.Write(bufferGeometry)));
bufferLayer.InsertFeatures(props);
// Ensure that the buffer layer is visible and in the legend.
bufferLayer.SetVisible(true);
bufferLayer.ForceRefresh();
bufferLayer.SetDisplayInLegend(true);
parcelMarkerLayer.SetVisible(true);
parcelMarkerLayer.ForceRefresh();
MessageBox.Show("Done");
_viewer.RefreshMap();
IMapLegend legend = Shell.Instance.Legend;
if (legend != null)
legend.RefreshLegend();
}
}
}
protected override void OnLoad(EventArgs e)
{
for (int i = 0; i < _reader.GetPropertyCount(); i++)
{
string name = _reader.GetPropertyName(i);
grdResults.Columns.Add(name, name);
}
int count = 0;
try
{
this.Cursor = Cursors.WaitCursor;
while (_reader.ReadNext())
{
count++;
object[] values = new object[_reader.GetPropertyCount()];
for (int i = 0; i < _reader.GetPropertyCount(); i++)
{
if (_reader.IsNull(i))
{
values[i] = null;
}
else
{
int pt = _reader.GetPropertyType(i);
switch (pt)
{
case MgPropertyType.Blob:
values[i] = "BLOB VALUE";
break;
case MgPropertyType.Boolean:
values[i] = _reader.GetBoolean(i);
break;
case MgPropertyType.Byte:
values[i] = _reader.GetByte(i);
break;
case MgPropertyType.Clob:
values[i] = "CLOB VALUE";
break;
case MgPropertyType.DateTime:
var mdt = _reader.GetDateTime(i);
values[i] = mdt.ToString();
break;
case MgPropertyType.Decimal:
case MgPropertyType.Double:
values[i] = _reader.GetDouble(i);
break;
case MgPropertyType.Feature:
values[i] = "NESTED FEATURE READER";
break;
case MgPropertyType.Geometry:
MgByteReader agf = _reader.GetGeometry(i);
MgGeometry geom = _agfRW.Read(agf);
values[i] = _wktRW.Write(geom);
break;
case MgPropertyType.Int16:
values[i] = _reader.GetInt16(i);
break;
case MgPropertyType.Int32:
values[i] = _reader.GetInt32(i);
break;
case MgPropertyType.Int64:
values[i] = _reader.GetInt64(i);
break;
case MgPropertyType.Raster:
values[i] = "RASTER IMAGE";
break;
case MgPropertyType.Single:
values[i] = _reader.GetSingle(i);
break;
case MgPropertyType.String:
values[i] = _reader.GetString(i);
break;
}
}
}
grdResults.Rows.Add(values);
}
}
finally
{
this.Cursor = Cursors.Default;
_reader.Close();
toolStripStatusLabel1.Text = count + " features returned";
}
}
public static IGeometry GetGeometry(MgByteReader agf)
{
MgGeometry mgeom = _agfRw.Read(agf);
return(_reader.Read(GetWkt(mgeom)));
}
private void bgGridLoader_DoWork(object sender, DoWorkEventArgs e)
{
var reader = (MgReader)e.Argument;
var wktRw = new MgWktReaderWriter();
var agfRw = new MgAgfReaderWriter();
var cls = _layer.GetClassDefinition();
var idProps = cls.GetIdentityProperties();
var idNames = new List<string>();
for (int i = 0; i < idProps.Count; i++)
{
var prop = idProps.GetItem(i);
idNames.Add(prop.Name);
}
_identityProps = idNames.ToArray();
var propNames = new List<string>();
int propCount = reader.GetPropertyCount();
//.net 2.0 compatibility hack for set-like behaviour
var skipProps = new Dictionary<int, int>();
for (int i = 0; i < propCount; i++)
{
var pt = reader.GetPropertyType(i);
if (pt == MgPropertyType.Blob ||
pt == MgPropertyType.Clob ||
pt == MgPropertyType.Feature ||
pt == MgPropertyType.Null ||
pt == MgPropertyType.Raster)
{
skipProps[i] = i;
}
else
{
var name = reader.GetPropertyName(i);
_propMap.Add(name, pt);
propNames.Add(name);
}
}
try
{
bgGridLoader.ReportProgress(-1, new InitGridAction() { ColumnNames = propNames.ToArray() });
int read = 0;
while (reader.ReadNext())
{
object[] values = new object[propCount];
for (int i = 0; i < propCount; i++)
{
if (skipProps.ContainsKey(i))
continue;
if (reader.IsNull(i))
{
values[i] = null;
}
else
{
switch (reader.GetPropertyType(i))
{
case MgPropertyType.Boolean:
values[i] = reader.GetBoolean(i);
break;
case MgPropertyType.Byte:
values[i] = reader.GetByte(i);
break;
case MgPropertyType.DateTime:
values[i] = ToClrDateTime(reader.GetDateTime(i));
break;
case MgPropertyType.Decimal:
case MgPropertyType.Double:
values[i] = reader.GetDouble(i);
break;
case MgPropertyType.Geometry:
{
try
{
var agf = reader.GetGeometry(i);
var geom = agfRw.Read(agf);
var env = geom.Envelope();
var envLL = env.LowerLeftCoordinate;
var envUR = env.UpperRightCoordinate;
var wkt = wktRw.Write(geom);
values[i] = new BoxedGeometry()
{
Text = wkt,
GeomBounds = new Bounds()
{
LowerX = envLL.X,
LowerY = envLL.Y,
UpperX = envUR.X,
UpperY = envUR.Y
}
};
}
catch
{
values[i] = null;
}
}
break;
case MgPropertyType.Int16:
values[i] = reader.GetInt16(i);
break;
case MgPropertyType.Int32:
values[i] = reader.GetInt32(i);
break;
case MgPropertyType.Int64:
values[i] = reader.GetInt64(i);
break;
case MgPropertyType.Single:
values[i] = reader.GetSingle(i);
break;
case MgPropertyType.String :
values[i] = reader.GetString(i);
break;
}
}
}
bgGridLoader.ReportProgress(-1, new AddRow() { Values = values });
read++;
if ((_limit > 0 && read >= _limit))
break;
}
}
finally
{
reader.Close();
wktRw.Dispose();
agfRw.Dispose();
wktRw = null;
agfRw = null;
}
}
