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();
}
/// <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);
}
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();
}
}
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();
}
}
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();
}
}
}
}
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;
}
/// <summary>Получает набор свойств MgPropertyCollection из текущей записи _reader в соответствии со списком _listed_prop_defs</summary>
/// <param name="_reader"></param>
/// <param name="_listed_prop_defs"></param>
/// <returns></returns>
internal static MgPropertyCollection GetPropertiesFromReader(MgFeatureReader _reader, MgPropertyDefinitionCollection _listed_prop_defs)
{
MgPropertyCollection result_props = new MgPropertyCollection();
MgPropertyDefinitionCollection reader_prop_defs = _reader.GetClassDefinition().GetProperties();
foreach (MgPropertyDefinition curr_prop_def in _listed_prop_defs)
{
if (!reader_prop_defs.Contains(curr_prop_def.Name) || _reader.IsNull(curr_prop_def.Name))
{
continue;
}
int property_type = _reader.GetPropertyType(curr_prop_def.Name);
if (property_type == MgPropertyType.Blob)
{
result_props.Add(
new MgBlobProperty(curr_prop_def.Name, _reader.GetBLOB(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Boolean)
{
result_props.Add(
new MgBooleanProperty(curr_prop_def.Name, _reader.GetBoolean(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Byte)
{
result_props.Add(
new MgByteProperty(curr_prop_def.Name, _reader.GetByte(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Clob)
{
result_props.Add(
new MgClobProperty(curr_prop_def.Name, _reader.GetCLOB(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.DateTime)
{
result_props.Add(
new MgDateTimeProperty(curr_prop_def.Name, _reader.GetDateTime(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Double)
{
result_props.Add(
new MgDoubleProperty(curr_prop_def.Name, _reader.GetDouble(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Feature)
{
result_props.Add(
new MgFeatureProperty(curr_prop_def.Name, _reader.GetFeatureObject(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Geometry)
{
result_props.Add(
new MgGeometryProperty(curr_prop_def.Name, _reader.GetGeometry(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Int16)
{
result_props.Add(
new MgInt16Property(curr_prop_def.Name, _reader.GetInt16(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Int32)
{
result_props.Add(
new MgInt32Property(curr_prop_def.Name, _reader.GetInt32(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Int64)
{
result_props.Add(
new MgInt64Property(curr_prop_def.Name, _reader.GetInt64(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Raster)
{
result_props.Add(
new MgRasterProperty(curr_prop_def.Name, _reader.GetRaster(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.Single)
{
result_props.Add(
new MgSingleProperty(curr_prop_def.Name, _reader.GetSingle(curr_prop_def.Name))
);
}
else if (property_type == MgPropertyType.String)
{
result_props.Add(
new MgStringProperty(curr_prop_def.Name, _reader.GetString(curr_prop_def.Name))
);
}
} //foreach
return(result_props);
}
public LocalNativeFeature(MgFeatureReader reader, FixedWKTReader mgReader, MgAgfReaderWriter agfRw, MgWktReaderWriter wktRw)
: base(Utility.ConvertClassDefinition(reader.GetClassDefinition()))
{
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:
((FeatureValue)_values[name]).Value = GetFeatureArray(reader, name);
break;
case PropertyValueType.Geometry:
//TODO: See if SWIG issues come into play here
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 LocalNativeFeature(MgFeatureReader reader, FixedWKTReader mgReader, MgAgfReaderWriter agfRw, MgWktReaderWriter wktRw)
: base(Utility.ConvertClassDefinition(reader.GetClassDefinition()))
{
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:
((FeatureValue)_values[name]).Value = GetFeatureArray(reader, name);
break;
case PropertyValueType.Geometry:
//TODO: See if SWIG issues come into play here
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;
}
}
}
}
//---------------------------------------------------------------------------------------
//
// ���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;
}
}
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 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;
}
}
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));
}
}