public static Vector2d Convert2d(this Vector3d vec)
{
using (var plane = new Plane())
{
return(vec.Convert2d(plane));
}
}
getSegNo(Point3d varPnt, List <Point3d> var2dCoords)
{
int numSeg = 0;
for (int s = 1; s < var2dCoords.Count; s++)
{
Point3d pnt3dBeg = var2dCoords[s - 1];
Point3d pnt3dEnd = var2dCoords[s - 0];
double dblLen1 = pnt3dBeg.getDistance(pnt3dEnd);
double dblLen2 = varPnt.getDistance(pnt3dBeg);
Vector3d v3d1 = pnt3dEnd - pnt3dBeg;
Vector3d v3d2 = varPnt - pnt3dBeg;
Vector2d v2d1 = v3d1.Convert2d(BaseObjs.xyPlane);
Vector2d v2d2 = v3d2.Convert2d(BaseObjs.xyPlane);
double dblResult = v2d1.DotProduct(v2d2);
//test if point is on line with same direction as boundary segment
if (System.Math.Round(dblResult, 3) == 0.0) //test if point is on segment
{
if (dblLen2 <= dblLen1)
{
double dblAng1 = pnt3dBeg.getDirection(pnt3dEnd);
double dblAng2 = pnt3dBeg.getDirection(varPnt);
if (System.Math.Round(dblAng2, 3) == System.Math.Round(dblAng1, 3))
{
numSeg = s - 1;
}
}
}
}
return(numSeg);
}
public static Polyline?CreateRectangle(this Point3d pt, double length, double width, CellAlignment alignment,
Vector3d dir)
{
return(CreateRectangle(pt.Convert2d(), length, width, alignment, dir.Convert2d()));
}