public static XYZ GetProjectPoint(Curve line, XYZ point)
{
if (IsPointInLineOrExtend(CheckGeometry.ConvertLine(line), point))
{
return(point);
}
XYZ vecL = GeomUtil.SubXYZ(line.GetEndPoint(1), line.GetEndPoint(0));
XYZ vecP = GeomUtil.SubXYZ(point, line.GetEndPoint(0));
Plane p = Plane.CreateByOriginAndBasis(line.GetEndPoint(0), GeomUtil.UnitVector(vecL), GeomUtil.UnitVector(GeomUtil.CrossMatrix(vecL, vecP)));
return(GetProjectPoint(p, point));
}
public static List <Curve> GetCurvesCut(Polygon mainPolygon, Polygon secPolygon)
{
PolygonComparePolygonResult res = new PolygonComparePolygonResult(mainPolygon, secPolygon);
if (res.ListPolygon[0] != secPolygon)
{
throw new Exception("Secondary Polygon must inside Main Polygon!");
}
bool isInside = true;
List <Curve> cs = new List <Curve>();
foreach (Curve c in secPolygon.ListCurve)
{
LineComparePolygonResult lpRes = new LineComparePolygonResult(mainPolygon, CheckGeometry.ConvertLine(c));
if (lpRes.Type == LineComparePolygonType.Inside)
{
foreach (Curve c1 in mainPolygon.ListCurve)
{
LineCompareLineResult llres = new LineCompareLineResult(c, c1);
if (llres.Type == LineCompareLineType.SameDirectionLineOverlap)
{
goto Here;
}
}
cs.Add(c);
}
Here : continue;
}
isInside = false;
foreach (Curve c in mainPolygon.ListCurve)
{
LineComparePolygonResult lpRes = new LineComparePolygonResult(secPolygon, CheckGeometry.ConvertLine(c));
if (lpRes.Type == LineComparePolygonType.Outside)
{
cs.Add(c);
continue;
}
foreach (Curve c1 in secPolygon.ListCurve)
{
LineCompareLineResult llRes = new LineCompareLineResult(c, c1);
if (llRes.Type == LineCompareLineType.SameDirectionLineOverlap)
{
isInside = false;
if (llRes.ListOuterLine.Count == 0)
{
break;
}
foreach (Line l in llRes.ListOuterLine)
{
LineComparePolygonResult lpRes1 = new LineComparePolygonResult(secPolygon, l);
if (lpRes1.Type != LineComparePolygonType.Inside)
{
cs.Add(l);
}
}
break;
}
}
}
if (isInside)
{
throw new Exception("Secondary Polygon must be tangential with Main Polygon!");
}
return(cs);
}