public TriangleFanGraphics DrawTriangleFan(
double[] coordinates,
GraphicsNode node)
{
try
{
AdnGraphics graphicsData = WorkingGraphics;
if (node == null)
{
node = graphicsData.ClientGraphics.AddNode(
graphicsData.GetGraphicNodeFreeId());
}
TriangleFanGraphics graphic = node.AddTriangleFanGraphics();
if (coordinates != null)
{
GraphicsCoordinateSet coordSet =
graphicsData.GraphicsDataSets.CreateCoordinateSet(
graphicsData.GetDataSetFreeId());
coordSet.PutCoordinates(ref coordinates);
graphic.CoordinateSet = coordSet;
}
return(graphic);
}
catch
{
return(null);
}
}
//////////////////////////////////////////////////////////////////////////////////////////////
// Description: Displays a TriangleFan Graphics.
//
//////////////////////////////////////////////////////////////////////////////////////////////
static public void TriangleFanGraphicsDemo()
{
PartDocument doc =
AdnInventorUtilities.InvApplication.ActiveDocument
as PartDocument;
string clientId = "{Add-in Guid}";
ClientGraphics graphics = null;
GraphicsDataSets dataSets = null;
try
{
graphics = doc.ComponentDefinition.ClientGraphicsCollection[clientId];
dataSets = doc.GraphicsDataSetsCollection[clientId];
}
catch
{
graphics = doc.ComponentDefinition.ClientGraphicsCollection.Add(clientId);
dataSets = doc.GraphicsDataSetsCollection.Add(clientId);
}
GraphicsNode node = graphics.AddNode(graphics.Count + 1);
GraphicsCoordinateSet coordSet = dataSets.CreateCoordinateSet(dataSets.Count + 1);
double[] coords = new double[]
{
0.0, 0.0, 0.0, //point 1
1.0, 1.0, 0.0, //point 2
2.0, 0.0, 0.0, //point 3
3.0, 1.0, 0.0, //point 4
4.0, 0.0, 0.0, //point 5
5.0, 1.0, 0.0, //point 6
6.0, 0.0, 0.0, //point 7
};
coordSet.PutCoordinates(ref coords);
TriangleFanGraphics triFanPrimitive = node.AddTriangleFanGraphics();
int[] strips = new int[]
{
3, //points 1,2,3 for strip 1
4 //points 4,5,6,7 for strip 2
};
triFanPrimitive.PutStripLengths(ref strips);
//Create the color set with 3 colors
GraphicsColorSet colorSet = dataSets.CreateColorSet(dataSets.Count + 1);
colorSet.Add(1, 221, 0, 0);
colorSet.Add(2, 119, 187, 17);
colorSet.Add(3, 119, 187, 17);
//Create the index set for color
GraphicsIndexSet indexSetColors = dataSets.CreateIndexSet(dataSets.Count + 1);
indexSetColors.Add(1, 2); //strip 1 uses color 1
indexSetColors.Add(2, 1); //strip 2 uses color 2
triFanPrimitive.CoordinateSet = coordSet;
triFanPrimitive.ColorIndexSet = indexSetColors;
triFanPrimitive.ColorSet = colorSet;
triFanPrimitive.ColorBinding = ColorBindingEnum.kPerStripColors;
doc.Views[1].Update();
}
