public static void ReversePolyline(Polyline pl)
{
if (pl != null)
{
// Collect our per-vertex data
List <PerVertexData> vertData =
new List <PerVertexData>(pl.NumberOfVertices);
for (int i = 0; i < pl.NumberOfVertices; i++)
{
PerVertexData pvd = new PerVertexData();
pvd.bulge = (i > 0 ? pl.GetBulgeAt(i - 1) : 0);
pvd.startWidth = (i > 0 ? pl.GetStartWidthAt(i - 1) : 0);
pvd.endWidth = (i > 0 ? pl.GetEndWidthAt(i - 1) : 0);
pvd.pt = pl.GetPoint2dAt(i);
vertData.Add(pvd);
}
// Write the data back to the polyline, but in
// reverse order
for (int i = 0; i < pl.NumberOfVertices; i++)
{
PerVertexData pvd =
vertData[pl.NumberOfVertices - (i + 1)];
pl.SetPointAt(i, pvd.pt);
pl.SetBulgeAt(i, -pvd.bulge);
pl.SetStartWidthAt(i, pvd.endWidth);
pl.SetEndWidthAt(i, pvd.startWidth);
}
}
}
public static void ReversePolyline(Polyline pl)
{
if (pl != null)
{
// Collect our per-vertex data
List<PerVertexData> vertData =
new List<PerVertexData>(pl.NumberOfVertices);
for (int i = 0; i < pl.NumberOfVertices; i++)
{
PerVertexData pvd = new PerVertexData();
pvd.bulge = (i > 0 ? pl.GetBulgeAt(i - 1) : 0);
pvd.startWidth = (i > 0 ? pl.GetStartWidthAt(i - 1) : 0);
pvd.endWidth = (i > 0 ? pl.GetEndWidthAt(i - 1) : 0);
pvd.pt = pl.GetPoint2dAt(i);
vertData.Add(pvd);
}
// Write the data back to the polyline, but in
// reverse order
for (int i = 0; i < pl.NumberOfVertices; i++)
{
PerVertexData pvd =
vertData[pl.NumberOfVertices - (i + 1)];
pl.SetPointAt(i, pvd.pt);
pl.SetBulgeAt(i, -pvd.bulge);
pl.SetStartWidthAt(i, pvd.endWidth);
pl.SetEndWidthAt(i, pvd.startWidth);
}
}
}
