public void Execute(IPlatformFactory factory, ITestLogger logger)
{
var wkt = new MgWktReaderWriter();
MgPoint geom1 = wkt.Read("POINT XY (1.0 1.0)") as MgPoint;
MgPoint geom2 = wkt.Read("POINT XY (2.0 2.0)") as MgPoint;
MgPoint geom3 = wkt.Read("POINT XY (1.0 1.0)") as MgPoint;
MgGeometryCollection coll = new MgGeometryCollection();
coll.Add(geom1);
coll.Add(geom2);
coll.Add(geom3);
Assert.AreEqual(3, coll.Count);
Assert.IsTrue(geom1.Equals(coll[0]));
Assert.IsTrue(coll[0].Equals(coll[2]));
Assert.IsFalse(coll[0].Equals(coll[1]));
coll[0] = coll[1];
Assert.IsTrue(coll[0].Equals(coll[1]));
double x = 0.0;
foreach (MgGeometry geom in coll)
{
x += (geom as MgPoint).GetCoordinate().GetX();
}
Assert.AreEqual(5.0, x);
}
public MgMultiGeometry CreateMultiGeometry()
{
MgGeometryCollection geometries = new MgGeometryCollection();
MgGeometry geometry = null;
// CurvePolygon
geometry = (MgGeometry)CreateCurvePolygon(0, 1);
geometries.Add(geometry);
// CurveString
// Not doing CurveString because of some unfixed defect.
// It may be the same one that sometimes affects MultiPolygon.
geometry = (MgGeometry)CreateCurveString(100);
geometries.Add(geometry);
// LineString
geometry = (MgGeometry)CreateLineString(1.0);
geometries.Add(geometry);
// Point
geometry = (MgGeometry)CreatePoint();
geometries.Add(geometry);
// Polygon
geometry = CreatePolygon(0.0);
geometries.Add(geometry);
// Make MultiGeometry from the many geometries collected above.
return(factory.CreateMultiGeometry(geometries));
}
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);
}
}
}
}
public void Execute(IPlatformFactory factory, ITestLogger logger)
{
MgGeometryFactory gf = new MgGeometryFactory();
MgCoordinate pt1 = gf.CreateCoordinateXY(0, 0);
MgCoordinate pt2 = gf.CreateCoordinateXY(0, 10);
MgCoordinate pt3 = gf.CreateCoordinateXY(10, 10);
MgCoordinate pt4 = gf.CreateCoordinateXY(10, 0);
MgCoordinateCollection coordinates = new MgCoordinateCollection();
coordinates.Add(pt1);
coordinates.Add(pt2);
coordinates.Add(pt3);
coordinates.Add(pt4);
MgLineString ls = gf.CreateLineString(coordinates);
MgGeometryCollection geometries = new MgGeometryCollection();
geometries.Add(ls);
MgMultiGeometry mg = gf.CreateMultiGeometry(geometries);
Assert.AreEqual(1, mg.Count);
Assert.AreEqual(MgGeometryType.MultiGeometry, mg.GeometryType);
Assert.AreEqual(4, mg.Dimension);
}
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 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 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();
}
}
}
}
public void GeometryCollection()
{
MgPoint geom1 = wkt.Read("POINT XY (1.0 1.0)") as MgPoint;
MgPoint geom2 = wkt.Read("POINT XY (2.0 2.0)") as MgPoint;
MgPoint geom3 = wkt.Read("POINT XY (1.0 1.0)") as MgPoint;
MgGeometryCollection coll = new MgGeometryCollection();
coll.Add(geom1);
coll.Add(geom2);
coll.Add(geom3);
Assert.AreEqual(3, coll.Count);
Assert.IsTrue(geom1.Equals(coll[0]));
Assert.IsTrue(coll[0].Equals(coll[2]));
Assert.IsFalse(coll[0].Equals(coll[1]));
coll[0] = coll[1];
Assert.IsTrue(coll[0].Equals(coll[1]));
double x = 0.0;
foreach (MgGeometry geom in coll)
{
x += (geom as MgPoint).GetCoordinate().GetX();
}
Assert.AreEqual(5.0, x);
}
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);
}
}
public void MultiGeometry()
{
MgGeometryFactory gf = new MgGeometryFactory();
MgCoordinate pt1 = gf.CreateCoordinateXY(0, 0);
MgCoordinate pt2 = gf.CreateCoordinateXY(0, 10);
MgCoordinate pt3 = gf.CreateCoordinateXY(10, 10);
MgCoordinate pt4 = gf.CreateCoordinateXY(10, 0);
MgCoordinateCollection coordinates = new MgCoordinateCollection();
coordinates.Add(pt1);
coordinates.Add(pt2);
coordinates.Add(pt3);
coordinates.Add(pt4);
MgLineString ls = gf.CreateLineString(coordinates);
MgGeometryCollection geometries = new MgGeometryCollection();
geometries.Add(ls);
MgMultiGeometry mg = gf.CreateMultiGeometry(geometries);
Assert.AreEqual(1, mg.Count);
Assert.AreEqual(MgGeometryType.MultiGeometry, mg.GeometryType);
Assert.AreEqual(4, mg.Dimension);
}
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 MgMultiGeometry CreateMultiGeometry()
{
MgGeometryCollection geometries = new MgGeometryCollection();
MgGeometry geometry = null;
// CurvePolygon
geometry = (MgGeometry)CreateCurvePolygon(0, 1);
geometries.Add(geometry);
// CurveString
// Not doing CurveString because of some unfixed defect.
// It may be the same one that sometimes affects MultiPolygon.
geometry = (MgGeometry)CreateCurveString(100);
geometries.Add(geometry);
// LineString
geometry = (MgGeometry)CreateLineString(1.0);
geometries.Add(geometry);
// Point
geometry = (MgGeometry)CreatePoint();
geometries.Add(geometry);
// Polygon
geometry = CreatePolygon(0.0);
geometries.Add(geometry);
// Make MultiGeometry from the many geometries collected above.
return factory.CreateMultiGeometry(geometries);
}
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));
}
}
