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Draw Polyline Using Input Geometry Snippet (ArcObjects .NET 10.4 SDK)

ArcObjects Library Reference

Draw Polyline Using Input Geometry Snippet

[C#]

///<summary>
///Draws a polyline on the screen in the ActiveView.
///</summary>
///<param name="activeView">An ESRI.ArcGIS.Carto.IActiveView interface to recieve the graphic.</param>
///<param name="geometry">An ESRI.ArcGIS.Geometry.IPolyline interface that will be drawn.</param>
///<param name="rgbColor">An ESRI.ArcGIS.Display.IRgbColor interface that will be the color to draw the geometry.</param>
///<remarks>The polyline drawn is a temporary graphic and will disappear at the next map refresh.</remarks>
public void DrawPolylineUsingInputGeometry(ESRI.ArcGIS.Carto.IActiveView activeView, ESRI.ArcGIS.Geometry.IPolyline geometry, ESRI.ArcGIS.Display.IRgbColor rgbColor)
{

  if (activeView == null)
  {
    return;
  }

  ESRI.ArcGIS.Display.IScreenDisplay screenDisplay=activeView.ScreenDisplay;

  // Constant
  screenDisplay.StartDrawing(screenDisplay.hDC, System.Convert.ToInt16(ESRI.ArcGIS.Display.esriScreenCache.esriNoScreenCache));

  ESRI.ArcGIS.Display.IColor color=rgbColor; // Implicit Cast
  ESRI.ArcGIS.Display.ISimpleLineSymbol simpleLineSymbol=new ESRI.ArcGIS.Display.SimpleLineSymbolClass();
  simpleLineSymbol.Color=color;

  ESRI.ArcGIS.Display.ISymbol symbol=(ESRI.ArcGIS.Display.ISymbol)simpleLineSymbol; // Explicit Cast
  screenDisplay.SetSymbol(symbol);
  screenDisplay.DrawPolyline(geometry);
  screenDisplay.FinishDrawing();

}

[Visual Basic .NET]

'''<summary>
'''Draws a polyline on the screen in the ActiveView.
'''</summary>
'''<param name="activeView">An ESRI.ArcGIS.Carto.IActiveView interface to recieve the graphic.</param>
'''<param name="geometry">An ESRI.ArcGIS.Geometry.IPolyline interface that will be drawn.</param>
'''<param name="rgbColor">An ESRI.ArcGIS.Display.IRgbColor interface that will be the color to draw the geometry.</param>
'''<remarks>The polyline drawn is a temporary graphic and will disappear at the next map refresh.</remarks>
Public Sub DrawPolylineUsingInputGeometry(ByVal activeView As ESRI.ArcGIS.Carto.IActiveView, ByVal geometry As ESRI.ArcGIS.Geometry.IPolyline, ByVal rgbColor As ESRI.ArcGIS.Display.IRgbColor)

  If activeView Is Nothing Then
    Return
  End If

  Dim screenDisplay As ESRI.ArcGIS.Display.IScreenDisplay=activeView.ScreenDisplay

  ' Constant
  screenDisplay.StartDrawing(screenDisplay.hDC, CShort(ESRI.ArcGIS.Display.esriScreenCache.esriNoScreenCache))

  Dim color As ESRI.ArcGIS.Display.IColor=rgbColor ' Implicit Cast
  Dim simpleLineSymbol As ESRI.ArcGIS.Display.ISimpleLineSymbol=New ESRI.ArcGIS.Display.SimpleLineSymbolClass
  simpleLineSymbol.Color=color

  Dim symbol As ESRI.ArcGIS.Display.ISymbol=CType(simpleLineSymbol, ESRI.ArcGIS.Display.ISymbol) ' Explicit Cast
  screenDisplay.SetSymbol(symbol)
  screenDisplay.DrawPolyline(geometry)
  screenDisplay.FinishDrawing()

End Sub