public static bool IsPointOnPolyline([NotNull] this Polyline pl, Point3d pt)
{
var isOn = false;
var ptZeroZ = new Point3d(pt.X, pt.Y, pl.Elevation);
for (var i = 0; i < pl.NumberOfVertices; i++)
{
Curve3d seg = null;
var segType = pl.GetSegmentType(i);
if (segType == SegmentType.Arc)
{
seg = pl.GetArcSegmentAt(i);
}
else if (segType == SegmentType.Line)
{
seg = pl.GetLineSegmentAt(i);
}
if (seg != null)
{
isOn = seg.IsOn(ptZeroZ);
if (isOn)
{
break;
}
}
}
return(isOn);
}
public static bool IsPointOnPolyline(Polyline pl, Point3d pt)
{
bool isOn = false;
for (int i = 0; i < pl.NumberOfVertices; i++)
{
Curve3d seg = null;
SegmentType segType = pl.GetSegmentType(i);
if (segType == SegmentType.Arc)
{
seg = pl.GetArcSegmentAt(i);
}
else if (segType == SegmentType.Line)
{
seg = pl.GetLineSegmentAt(i);
}
if (seg != null)
{
isOn = seg.IsOn(pt);
if (isOn)
{
break;
}
}
}
return(isOn);
}