private void OnActiveViewEventsAfterDraw(ESRI.ArcGIS.Display.IDisplay display, ESRI.ArcGIS.Carto.esriViewDrawPhase phase)
{
ESRI.ArcGIS.Carto.esriViewDrawPhase m_phase = phase;
//if the drawing pahse geography, find all feature layer and selected feature and draw them on screen if they are polygons. Please note don't call display::StartDrawing as it is already started by the system.
if (m_phase == ESRI.ArcGIS.Carto.esriViewDrawPhase.esriViewGeography)
{
IMap m_Map = m_MxDoc.FocusMap;
ESRI.ArcGIS.esriSystem.UID m_UID = new ESRI.ArcGIS.esriSystem.UID();
m_UID.Value = "{40A9E885-5533-11d0-98BE-00805F7CED21}";
IEnumLayer m_EnumLayer = m_Map.Layers[m_UID];
ILayer m_Layer = m_EnumLayer.Next();
//if you want to change the selection color you can change it here.
ISimpleFillSymbol m_FillSymbol = new SimpleFillSymbol();
m_Rgb = new RgbColor();
m_Rgb.Red = 255;
m_FillSymbol.Color = m_Rgb;
display.SetSymbol(m_FillSymbol as ISymbol);
do
{
if (m_Layer is IFeatureLayer)
{
if (m_Layer != null)
{
IFeatureSelection m_FeatureSelection = (IFeatureSelection)m_Layer;
ISelectionSet m_SelSet = m_FeatureSelection.SelectionSet;
IFeatureCursor m_FeatCur;
ICursor m_Cursor;
m_SelSet.Search(null, false, out m_Cursor);
m_FeatCur = (IFeatureCursor)m_Cursor;
IFeature m_Feature;
m_Feature = m_FeatCur.NextFeature();
do
{
if (m_Feature != null)
{
if (m_Feature.Shape is IPolygon)
{
display.DrawPolygon(m_Feature.Shape);
}
}
m_Feature = m_FeatCur.NextFeature();
} while (m_Feature != null);
}
}
m_Layer = m_EnumLayer.Next();
} while (m_Layer != null);
}
#endregion
}
///<summary>Flash geometry on the display. The geometry type could be polygon, polyline, point, or multipoint.</summary>
///
///<param name="geometry"> An IGeometry interface</param>
///<param name="color">An IRgbColor interface</param>
///<param name="display">An IDisplay interface</param>
///<param name="delay">A System.Int32 that is the time im milliseconds to wait.</param>
///
///<remarks></remarks>
public static void FlashGeometry(ESRI.ArcGIS.Geometry.IGeometry geometry, ESRI.ArcGIS.Display.IRgbColor color, ESRI.ArcGIS.Display.IDisplay display, System.Int32 delay, IEnvelope envelope)
{
if (geometry == null || color == null || display == null)
{
return;
}
display.StartDrawing(display.hDC, (System.Int16)ESRI.ArcGIS.Display.esriScreenCache.esriNoScreenCache); // Explicit Cast
switch (geometry.GeometryType)
{
case ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolygon:
{
//Set the flash geometry's symbol.
ESRI.ArcGIS.Display.ISimpleFillSymbol simpleFillSymbol = new ESRI.ArcGIS.Display.SimpleFillSymbolClass();
simpleFillSymbol.Color = color;
ESRI.ArcGIS.Display.ISymbol symbol = simpleFillSymbol as ESRI.ArcGIS.Display.ISymbol; // Dynamic Cast
symbol.ROP2 = ESRI.ArcGIS.Display.esriRasterOpCode.esriROPNotXOrPen;
//Flash the input polygon geometry.
display.SetSymbol(symbol);
display.DrawPolygon(geometry);
System.Threading.Thread.Sleep(delay);
display.DrawPolygon(geometry);
break;
}
case ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolyline:
{
//Set the flash geometry's symbol.
ESRI.ArcGIS.Display.ISimpleLineSymbol simpleLineSymbol = new ESRI.ArcGIS.Display.SimpleLineSymbolClass();
simpleLineSymbol.Width = 4;
simpleLineSymbol.Color = color;
ESRI.ArcGIS.Display.ISymbol symbol = simpleLineSymbol as ESRI.ArcGIS.Display.ISymbol; // Dynamic Cast
symbol.ROP2 = ESRI.ArcGIS.Display.esriRasterOpCode.esriROPNotXOrPen;
//Flash the input polyline geometry.
display.SetSymbol(symbol);
display.DrawPolyline(geometry);
System.Threading.Thread.Sleep(delay);
display.DrawPolyline(geometry);
break;
}
case ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPoint:
{
//Set the flash geometry's symbol.
ESRI.ArcGIS.Display.ISimpleMarkerSymbol simpleMarkerSymbol = new ESRI.ArcGIS.Display.SimpleMarkerSymbolClass();
simpleMarkerSymbol.Style = ESRI.ArcGIS.Display.esriSimpleMarkerStyle.esriSMSCircle;
simpleMarkerSymbol.Size = 12;
simpleMarkerSymbol.Color = color;
ESRI.ArcGIS.Display.ISymbol markerSymbol = simpleMarkerSymbol as ESRI.ArcGIS.Display.ISymbol; // Dynamic Cast
markerSymbol.ROP2 = ESRI.ArcGIS.Display.esriRasterOpCode.esriROPNotXOrPen;
ESRI.ArcGIS.Display.ISimpleLineSymbol simpleLineSymbol = new ESRI.ArcGIS.Display.SimpleLineSymbolClass();
simpleLineSymbol.Width = 1;
simpleLineSymbol.Color = color;
ESRI.ArcGIS.Display.ISymbol lineSymbol = simpleLineSymbol as ESRI.ArcGIS.Display.ISymbol; // Dynamic Cast
lineSymbol.ROP2 = ESRI.ArcGIS.Display.esriRasterOpCode.esriROPNotXOrPen;
//Flash the input polygon geometry.
display.SetSymbol(markerSymbol);
display.SetSymbol(lineSymbol);
ArcMapHelpers.DrawCrossHair(geometry, display, envelope, markerSymbol, lineSymbol);
//Flash the input point geometry.
display.SetSymbol(markerSymbol);
display.DrawPoint(geometry);
System.Threading.Thread.Sleep(delay);
display.DrawPoint(geometry);
break;
}
case ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryMultipoint:
{
//Set the flash geometry's symbol.
ESRI.ArcGIS.Display.ISimpleMarkerSymbol simpleMarkerSymbol = new ESRI.ArcGIS.Display.SimpleMarkerSymbolClass();
simpleMarkerSymbol.Style = ESRI.ArcGIS.Display.esriSimpleMarkerStyle.esriSMSCircle;
simpleMarkerSymbol.Size = 12;
simpleMarkerSymbol.Color = color;
ESRI.ArcGIS.Display.ISymbol symbol = simpleMarkerSymbol as ESRI.ArcGIS.Display.ISymbol; // Dynamic Cast
symbol.ROP2 = ESRI.ArcGIS.Display.esriRasterOpCode.esriROPNotXOrPen;
//Flash the input multipoint geometry.
display.SetSymbol(symbol);
display.DrawMultipoint(geometry);
System.Threading.Thread.Sleep(delay);
display.DrawMultipoint(geometry);
break;
}
}
display.FinishDrawing();
}