Add Graphic to Map Snippet

Draw a specified graphic on the map using the supplied colors.

///<summary>Draw a specified graphic on the map using the supplied colors.</summary>
///      
///<param name="map">An IMap interface.</param>
///<param name="geometry">An IGeometry interface. It can be of the geometry type: esriGeometryPoint, esriGeometryPolyline, or esriGeometryPolygon.</param>
///<param name="rgbColor">An IRgbColor interface. The color to draw the geometry.</param>
///<param name="outlineRgbColor">An IRgbColor interface. For those geometry's with an outline it will be this color.</param>
///      
///<remarks>Calling this function will not automatically make the graphics appear in the map area. Refresh the map area after after calling this function with Methods like IActiveView.Refresh or IActiveView.PartialRefresh.</remarks>
public void AddGraphicToMap(ESRI.ArcGIS.Carto.IMap map, ESRI.ArcGIS.Geometry.IGeometry geometry, ESRI.ArcGIS.Display.IRgbColor rgbColor, ESRI.ArcGIS.Display.IRgbColor outlineRgbColor)
{
  ESRI.ArcGIS.Carto.IGraphicsContainer graphicsContainer = (ESRI.ArcGIS.Carto.IGraphicsContainer)map; // Explicit Cast
  ESRI.ArcGIS.Carto.IElement element = null;
  if ((geometry.GeometryType) == ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPoint)
  {
    // Marker symbols
    ESRI.ArcGIS.Display.ISimpleMarkerSymbol simpleMarkerSymbol = new ESRI.ArcGIS.Display.SimpleMarkerSymbolClass();
    simpleMarkerSymbol.Color = rgbColor;
    simpleMarkerSymbol.Outline = true;
    simpleMarkerSymbol.OutlineColor = outlineRgbColor;
    simpleMarkerSymbol.Size = 15;
    simpleMarkerSymbol.Style = ESRI.ArcGIS.Display.esriSimpleMarkerStyle.esriSMSCircle;

    ESRI.ArcGIS.Carto.IMarkerElement markerElement = new ESRI.ArcGIS.Carto.MarkerElementClass();
    markerElement.Symbol = simpleMarkerSymbol;
    element = (ESRI.ArcGIS.Carto.IElement)markerElement; // Explicit Cast
  }
  else if ((geometry.GeometryType) == ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolyline)
  {
    //  Line elements
    ESRI.ArcGIS.Display.ISimpleLineSymbol simpleLineSymbol = new ESRI.ArcGIS.Display.SimpleLineSymbolClass();
    simpleLineSymbol.Color = rgbColor;
    simpleLineSymbol.Style = ESRI.ArcGIS.Display.esriSimpleLineStyle.esriSLSSolid;
    simpleLineSymbol.Width = 5;

    ESRI.ArcGIS.Carto.ILineElement lineElement = new ESRI.ArcGIS.Carto.LineElementClass();
    lineElement.Symbol = simpleLineSymbol;
    element = (ESRI.ArcGIS.Carto.IElement)lineElement; // Explicit Cast
  }
  else if ((geometry.GeometryType) == ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolygon)
  {
    // Polygon elements
    ESRI.ArcGIS.Display.ISimpleFillSymbol simpleFillSymbol = new ESRI.ArcGIS.Display.SimpleFillSymbolClass();
    simpleFillSymbol.Color = rgbColor;
    simpleFillSymbol.Style = ESRI.ArcGIS.Display.esriSimpleFillStyle.esriSFSForwardDiagonal;
    ESRI.ArcGIS.Carto.IFillShapeElement fillShapeElement = new ESRI.ArcGIS.Carto.PolygonElementClass();
    fillShapeElement.Symbol = simpleFillSymbol;
    element = (ESRI.ArcGIS.Carto.IElement)fillShapeElement; // Explicit Cast
  }
  if (!(element == null))
  {
    element.Geometry = geometry;
    graphicsContainer.AddElement(element, 0);
  }
}