public static void NewPointElement(IMap pMap, IPoint pPoint)
{
IActiveView pActiveView = pMap as IActiveView;
IGraphicsContainer activeView = (IGraphicsContainer)pActiveView;
RubberPoint rubberPointClass = new RubberPoint();
ISimpleMarkerSymbol simpleMarkerSymbolClass = new SimpleMarkerSymbol();
IRgbColor rgbColorClass = new RgbColor();
rgbColorClass.Red = (0);
rgbColorClass.Green = (255);
rgbColorClass.Blue = (255);
simpleMarkerSymbolClass.Color = (rgbColorClass);
simpleMarkerSymbolClass.Size = (8);
simpleMarkerSymbolClass.Style = (0);
LineElement lineElementClass = new LineElement();
((IElement)lineElementClass).Geometry = (pPoint);
activeView.AddElement(lineElementClass, 0);
pActiveView.Refresh();
}
/// <summary>
/// 屏幕上绘画几何形状
/// </summary>
/// <param name="screenDisplay">ESRI屏幕显示接口</param>
/// <param name="geomType">几何形状类型的枚举类</param>
/// <returns>ESRI几何形状接口</returns>
public static IGeometry ScreenTrackGeometry(IScreenDisplay screenDisplay, DsGeometryType geomType)
{
IGeometry trackGeom = null;
if (screenDisplay != null)
{
IRubberBand rubberBand = null;
switch (geomType)
{
case DsGeometryType.dsGTPoint:
rubberBand = new RubberPoint();
break;
case DsGeometryType.dsGTLine:
rubberBand = new RubberLine();
break;
case DsGeometryType.dsGTPolyline:
rubberBand = new RubberLine();
break;
case DsGeometryType.dsGTRectangle:
rubberBand = new RubberEnvelope();
break;
case DsGeometryType.dsGTCircle:
rubberBand = new RubberCircle();
break;
case DsGeometryType.dsGTEllipse:
rubberBand = new RubberEnvelope();
break;
case DsGeometryType.dsGTPolygon:
rubberBand = new RubberPolygon();
break;
case DsGeometryType.dsGTRectangularPolygon:
rubberBand = new RubberRectangularPolygon();
break;
default:
break;
}
if (rubberBand != null)
{
trackGeom = rubberBand.TrackNew(screenDisplay, null);
}
if (geomType == DsGeometryType.dsGTEllipse)
{
trackGeom = ConvertEnvelopeToEllipticArc(trackGeom);
}
else if ((geomType == DsGeometryType.dsGTLine) ||
(geomType == DsGeometryType.dsGTPolyline) ||
(geomType == DsGeometryType.dsGTPolygon))
{
if (trackGeom is ITopologicalOperator)
{
(trackGeom as ITopologicalOperator).Simplify();
}
}
}
return(trackGeom);
}