private void oneshotCallbackToolStripMenuItem_Click(object sender, EventArgs e)
{
MgGeometryFactory geomFact = new MgGeometryFactory();
mapViewer.DigitizePoint((x, y) => {
MgCoordinate coord = geomFact.CreateCoordinateXY(x, y);
MgPoint pt = geomFact.CreatePoint(coord);
mapViewer.SelectByGeometry(pt, -1, (selection) => {
if (selection == null)
{
MessageBox.Show("No selected features");
return;
}
else
{
MgReadOnlyLayerCollection layers = selection.GetLayers();
if (layers != null)
{
StringBuilder sb = new StringBuilder("Selection summary:");
for (int i = 0; i < layers.GetCount(); i++)
{
MgLayerBase lyr = layers.GetItem(i);
sb.Append(Environment.NewLine + lyr.GetName() + ": " + selection.GetSelectedFeaturesCount(lyr, lyr.GetFeatureClassName()));
}
MessageBox.Show(sb.ToString());
}
else
{
MessageBox.Show("No selected features");
}
}
});
});
}
/// <summary>(public)
/// replace the content of a marked text within an edit control
/// </summary>
/// <param name = "ctrl">the control to operate upon </param>
/// <param name = "str">text to replace </param>
/// <returns>succeed or failed </returns>
public static bool MarkedTextSet(MgControlBase ctrl, String str)
{
if (!ctrl.isTextOrTreeEdit())
{
return(false);
}
MgPoint selection = SelectionGet(ctrl);
// return if no text is selected
if (selection.x
==
selection.y)
{
return(false);
}
bool successful = true;
if (ctrl.isRichEditControl())
{
#if !PocketPC
Commands.setMarkedTextOnRichEdit(ctrl, ctrl.getDisplayLine(true), str);
#endif
}
else
{
successful = TextMaskEditor.MarkedTextSet(ctrl, str);
}
return(successful);
}
private MgByteReader Plot(MapGuideViewerInputModel input, bool useLayout, double?scale)
{
MgSiteConnection conn = CreateConnection(input);
MgMap map = new MgMap(conn);
map.Open(input.MapName);
MgPoint center = map.ViewCenter;
MgCoordinate coord = center.Coordinate;
MgMappingService mappingService = (MgMappingService)conn.CreateService(MgServiceType.MappingService);
MgDwfVersion dwfVersion = new MgDwfVersion("6.01", "1.2");
MgPlotSpecification plotSpec = new MgPlotSpecification(8.5f, 11f, MgPageUnitsType.Inches, 0f, 0f, 0f, 0f);
plotSpec.SetMargins(0.5f, 0.5f, 0.5f, 0.5f);
MgLayout layout = null;
if (useLayout)
{
MgResourceIdentifier layoutRes = new MgResourceIdentifier("Library://Samples/Sheboygan/Layouts/SheboyganMap.PrintLayout");
layout = new MgLayout(layoutRes, "City of Sheboygan", MgPageUnitsType.Inches);
}
if (!scale.HasValue)
{
return(mappingService.GeneratePlot(map, plotSpec, layout, dwfVersion));
}
else
{
MgCoordinate mapCenter = map.GetViewCenter().GetCoordinate();
return(mappingService.GeneratePlot(map, mapCenter, scale.Value, plotSpec, layout, dwfVersion));
}
}
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;
MgPointCollection coll = new MgPointCollection();
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 (MgPoint geom in coll)
{
x += geom.GetCoordinate().GetX();
}
Assert.AreEqual(5.0, x);
}
public static void AddPointFeature(string FeatureName, MgPropertyCollection featureProps, MgPoint geom, MgFeatureService featureSrvc, MgResourceIdentifier dataSourceId)
{
MgByteReader geomReader = new MgAgfReaderWriter().Write(geom);
MgGeometryProperty geometryProp = new MgGeometryProperty("GEOM", geomReader);
featureProps.Add(geometryProp);
MgInsertFeatures cmd = new MgInsertFeatures(FeatureName, featureProps);
MgFeatureCommandCollection commands = new MgFeatureCommandCollection();
commands.Add(cmd);
ReleaseReader(featureSrvc.UpdateFeatures(dataSourceId, commands, false));
}
string pointTransformAndWriteZ(string geom, MgMap map)
{
double[] x = new double[1];
double[] y = new double[1];
double[] z = new double[1];
MgWktReaderWriter wktrwdmr = new MgWktReaderWriter();
MgPoint cntr = wktrwdmr.Read(geom).Centroid;
x[0] = cntr.Coordinate.X;
y[0] = cntr.Coordinate.Y;
z[0] = 0;
StringBuilder output = new StringBuilder();
output.Append("<table width=\"100%\" class=\"results\">");
//WGS preko MG API
MgCoordinateSystemFactory fact = new MgCoordinateSystemFactory();
string wktFrom = map.GetMapSRS();
string wktTo = "GEOGCS[\"LL84\",DATUM[\"WGS84\",SPHEROID[\"WGS84\",6378137.000,298.25722293]],PRIMEM[\"Greenwich\",0],UNIT[\"Degree\",0.01745329251994]]";
MgCoordinateSystem CSSource = fact.Create(wktFrom);
MgCoordinateSystem CSTarget = fact.Create(wktTo);
MgCoordinateSystemTransform coordTransform = fact.GetTransform(CSSource, CSTarget);
MgGeometryFactory geomFact = new MgGeometryFactory();
// GK
//samo prvo višino zaenkrat, dokler ni enačbe za Z
output.Append(String.Format("<tr><td class='header'><b>Map koordinates:</b></td><td class=\"results\"><table><tr><td><b>Y:</b></td><td>{0}</td></tr><tr><td><b>X:</b></td><td>{1}</td></tr></table></td></tr>", string.Format("{0:0.0}", x[0]), string.Format("{0:0.0}", y[0])));
int i = 0;
//transformacija preko MG koordinatnega sistema
foreach (double pointX in x)
{
MgCoordinate coord = geomFact.CreateCoordinateXY(x[i], y[i]);
coord = coordTransform.Transform(coord);
x[i] = coord.X;
y[i] = coord.Y;
i++;
}
double[] xwgs = x;
double[] ywgs = y;
output.Append(String.Format("<tr><td class='header'><b>WGS84:</b></td><td class=\"results\"><table><tr><td><b>Lon:</b></td><td>{0}</td></tr><tr><td><b>Lat:</b></td><td>{1}</td></tr></table></td></tr>", string.Format("{0:0.000000}", xwgs[0]), string.Format("{0:0.000000}", ywgs[0])));
output.Append("</table>");
return(output.ToString());
}
/// <summary>
/// return the selection on the control
/// </summary>
/// <param name = "ctrl"> </param>
/// <returns> </returns>
public static MgPoint SelectionGet(MgControlBase ctrl)
{
var point = new MgPoint(0, 0);
if (ctrl != null && ctrl.isTextOrTreeEdit())
{
Commands.selectionGet(ctrl, ctrl.getDisplayLine(true), point);
}
return(point);
}
private void printDocument_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
MgMapViewerProvider provider = _viewer.GetProvider();
MgSelectionBase selection = _viewer.GetSelection();
MgMapBase map = _viewer.GetMap();
MgPoint pt = map.ViewCenter;
MgCoordinate coord = pt.Coordinate;
float leftMargin = e.MarginBounds.Left;
float topMargin = e.MarginBounds.Top;
float yPos = topMargin;
float pageHeight = e.MarginBounds.Height;
//Write title
var titleFont = new Font(FontFamily.GenericSansSerif, 18.0f, GraphicsUnit.Point);
var sizeTitle = e.Graphics.MeasureString(txtTitle.Text, titleFont);
e.Graphics.DrawString(txtTitle.Text, titleFont, Brushes.Black, new PointF(leftMargin, yPos));
yPos += (sizeTitle.Height * 1.1f);
var scaleFont = SystemFonts.CaptionFont;
var scaleStr = string.Format("{0} 1 : {1}", Strings.TextScale, _viewer.GetMap().ViewScale); //NOXLATE
var sizeScale = e.Graphics.MeasureString(scaleStr, scaleFont);
//Scale to fit within this page
var imgHeight = (int)(pageHeight - (sizeTitle.Height * 1.1f) - (sizeScale.Height * 1.1f));
var imgWidth = e.MarginBounds.Width;
using (var state = provider.CreateTransientState())
{
var tempState = new MgMapDisplayParameters(coord.X, coord.Y, map.ViewScale, imgWidth, imgHeight, (int)numDPI.Value);
state.PushState(tempState);
MgByteReader br = provider.RenderMap(selection, "PNG"); //NOXLATE
using (MgReadOnlyStream stream = new MgReadOnlyStream(br))
{
Image img = Image.FromStream(stream);
e.Graphics.DrawImage(img, leftMargin, yPos, imgWidth, imgHeight);
img.Dispose();
}
}
yPos += imgHeight;
//Render scale
if (chkScale.Checked)
{
e.Graphics.DrawString(scaleStr, scaleFont, Brushes.Black, new PointF(leftMargin, yPos));
}
e.HasMorePages = false;
}
public static string MgPointToString(MgPoint pt)
{
try
{
var coord = pt.GetCoordinate();
return(string.Format(CultureInfo.InvariantCulture,
"({0}:{1})",
coord.GetX(),
coord.GetY()));
}
catch (MgException ex)
{
throw new UnitTestException(string.Format("Exception from MapGuide:\n{0}", ex.GetDetails()));
}
}
public MgMultiPoint CreateMultiPoint()
{
MgCoordinate coord1 = factory.CreateCoordinateXYZ(1.0, 2.0, 3.0);
MgPoint point1 = factory.CreatePoint(coord1);
MgCoordinate coord2 = factory.CreateCoordinateXYZ(4.0, 5.0, 6.0);
MgPoint point2 = factory.CreatePoint(coord2);
MgCoordinate coord3 = factory.CreateCoordinateXYZ(7.0, 8.0, 9.0);
MgPoint point3 = factory.CreatePoint(coord3);
MgPointCollection pnts = new MgPointCollection();
pnts.Add(point1);
pnts.Add(point2);
pnts.Add(point3);
return(factory.CreateMultiPoint(pnts));
}
// GET: DwfPlot
public ActionResult Index(MapGuideViewerInputModel input)
{
MgSiteConnection conn = CreateConnection(input);
MgMap map = new MgMap(conn);
map.Open(input.MapName);
MgPoint center = map.ViewCenter;
MgCoordinate coord = center.Coordinate;
DwfPlotViewModel vm = new DwfPlotViewModel()
{
MapName = input.MapName,
Session = input.Session,
Scale = map.GetViewScale(),
X = coord.X,
Y = coord.Y
};
return(View(vm));
}
private void btnRenderMap2_Click(object sender, EventArgs e)
{
//Note we're casting to mg-desktop specific subclasses as this is what mg-desktop rendering APIs expect
MgdMap map = (MgdMap)_viewer.GetMap();
MgdSelection selection = (MgdSelection)_viewer.GetSelection();
MgMapViewerProvider provider = _viewer.GetProvider();
MgdRenderingService renderSvc = (MgdRenderingService)provider.CreateService(MgServiceType.RenderingService);
MgPoint centerPt = map.ViewCenter;
MgCoordinate centerCoord = centerPt.Coordinate;
//MgdTransientMapState is a helper class which lets us apply transient state to a map, which is automatically
//undone on disposal. This is how we can render custom views of a map with specific display parameters without
//permanently changing the display parameters used by the map viewer
using (MgTransientMapState tempState = provider.CreateTransientState(map))
{
MgMapDisplayParameters state = new MgMapDisplayParameters(centerCoord.X, centerCoord.Y, 5000, 1024, 768, 96);
tempState.PushState(state);
MgByteReader br = renderSvc.RenderMap(map, selection, "PNG");
using (SaveFileDialog save = new SaveFileDialog())
{
save.Filter = "Portable Network Graphics (*.png)|*.png";
if (save.ShowDialog() == DialogResult.OK)
{
//MgReadOnlyStream is a stream adapter class that provides a .net stream
//interface to the MgByteReader, allowing MgByteReader objects to be used
//anywhere a System.IO.Stream is expected.
using (MgReadOnlyStream stream = new MgReadOnlyStream(br))
{
Image img = Image.FromStream(stream);
img.Save(save.FileName);
MessageBox.Show("Image saved to: " + save.FileName);
}
}
br.Dispose();
}
}
}
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);
MgPoint mgpt1 = gf.CreatePoint(pt1);
MgPoint mgpt2 = gf.CreatePoint(pt2);
MgPoint mgpt3 = gf.CreatePoint(pt3);
MgPoint mgpt4 = gf.CreatePoint(pt4);
MgPointCollection points = new MgPointCollection();
points.Add(mgpt1);
points.Add(mgpt2);
points.Add(mgpt3);
points.Add(mgpt4);
MgMultiPoint mp = gf.CreateMultiPoint(points);
Assert.AreEqual(4, mp.Count);
Assert.AreEqual(MgGeometryType.MultiPoint, mp.GeometryType);
Assert.AreEqual(0, mp.Dimension);
}
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();
}
}
/// <summary>(public)
/// retrieve the currently selected text
/// </summary>
/// <param name = "ctrl">the control which is assumed to contain the selected text </param>
public static String MarkedTextGet(MgControlBase ctrl)
{
String markedText = null;
if (ctrl.isTextOrTreeEdit())
{
// get the selected boundary
MgPoint selection = SelectionGet(ctrl);
// is there any selected text ?
if (selection.x != selection.y)
{
// get the text from the ctrl and the marked text.
String text = GetCtrlVal(ctrl);
if (ctrl.isRichEditControl())
{
text = StrUtil.GetPlainTextfromRtf(text);
}
markedText = text.Substring(selection.x, (selection.y) - (selection.x));
}
}
return(markedText);
}
public MgPointF(MgPoint point)
{
this.x = point.x;
this.y = point.y;
}
public override void Execute(IPlatformFactory factory, ITestLogger logger)
{
//For a map definition that links to a default provider tile set and both have the same coordinate
//system, it should be using the map definition's extents and we should not have null extents or view
//center
MgCoordinateSystemFactory csFactory = new MgCoordinateSystemFactory();
string csWkt = csFactory.ConvertCoordinateSystemCodeToWkt("LL84");
MgResourceService resSvc = (MgResourceService)factory.CreateService(MgServiceType.ResourceService);
var root = "../../TestData/TileService/";
LoadResource(resSvc, "Library://UnitTests/Data/RoadCenterLines.FeatureSource", root + "UT_RoadCenterLines.fs");
LoadResourceData(resSvc, "Library://UnitTests/Data/RoadCenterLines.FeatureSource", "UT_RoadCenterLines.sdf", MgResourceDataType.File, root + "UT_RoadCenterLines.sdf");
LoadResource(resSvc, "Library://UnitTests/Layers/RoadCenterLines.LayerDefinition", root + "UT_RoadCenterLines.ldf");
LoadResource(resSvc, "Library://UnitTests/Data/VotingDistricts.FeatureSource", root + "UT_VotingDistricts.fs");
LoadResourceData(resSvc, "Library://UnitTests/Data/VotingDistricts.FeatureSource", "UT_VotingDistricts.sdf", MgResourceDataType.File, root + "UT_VotingDistricts.sdf");
LoadResource(resSvc, "Library://UnitTests/Layers/VotingDistricts.LayerDefinition", root + "UT_VotingDistricts.ldf");
LoadResource(resSvc, "Library://UnitTests/Data/Parcels.FeatureSource", root + "UT_Parcels.fs");
LoadResourceData(resSvc, "Library://UnitTests/Data/Parcels.FeatureSource", "UT_Parcels.sdf", MgResourceDataType.File, root + "UT_Parcels.sdf");
LoadResource(resSvc, "Library://UnitTests/Layers/Parcels.LayerDefinition", root + "UT_Parcels.ldf");
string tsd = Encoding.UTF8.GetString(Properties.Resources.UT_BaseMapTileSet);
tsd = string.Format(tsd, csWkt, -87.5, 43.5, -86.5, 44.5);
byte[] tsdBytes = Encoding.UTF8.GetBytes(tsd);
MgByteSource sourceTSD = new MgByteSource(tsdBytes, tsdBytes.Length);
MgByteReader contentTSD = sourceTSD.GetReader();
MgResourceIdentifier resTSD = new MgResourceIdentifier("Library://UnitTests/TileSets/Test.TileSetDefinition");
resSvc.SetResource(resTSD, contentTSD, null);
string mdf = Encoding.UTF8.GetString(Properties.Resources.UT_LinkedTileSet);
mdf = string.Format(mdf, csWkt, -87.0, 43.0, -86.0, 44.0, resTSD.ToString());
byte[] mdfBytes = Encoding.UTF8.GetBytes(mdf);
MgByteSource sourceMDF = new MgByteSource(mdfBytes, mdfBytes.Length);
MgByteReader contentMDF = sourceMDF.GetReader();
MgResourceIdentifier resMDF = new MgResourceIdentifier("Library://UnitTests/Maps/LinkedTileSet.MapDefinition");
resSvc.SetResource(resMDF, contentMDF, null);
MgMapBase map = factory.CreateMap(resMDF);
MgEnvelope extent = map.GetMapExtent();
Assert.IsNotNull(extent);
Assert.IsNotNull(map.MapExtent);
MgPoint center = map.GetViewCenter();
Assert.IsNotNull(center);
Assert.IsNotNull(map.ViewCenter);
MgCoordinate ll = extent.GetLowerLeftCoordinate();
MgCoordinate ur = extent.GetUpperRightCoordinate();
Assert.IsNotNull(ll);
Assert.IsNotNull(ur);
Assert.AreEqual(-87.0, ll.X);
Assert.AreEqual(43.0, ll.Y);
Assert.AreEqual(-86.0, ur.X);
Assert.AreEqual(44.0, ur.Y);
}
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();
}
}
}
}
