buildArea3dLimit(ObjectId idPoly, string nameSurface, string nameSurfaceX, string nameLayer = "")
{
//3d Boundary
bool exists;
idPoly.checkIfClosed();
List <Point3d> pnts3dPoly = idPoly.getCoordinates3dList();
string strLayName = idPoly.getLayer();
List <Point3d> pnts3dBNDY = new List <Point3d>();
Color color = new Color();
color = Color.FromColorIndex(ColorMethod.ByBlock, 5);
//each polyline segment
TinSurface tinSurf = Surf.getTinSurface(nameSurface, out exists);
for (int j = 1; j < pnts3dPoly.Count; j++)
{
Point3d pnt3dBEG = pnts3dPoly[j - 1];
Point3d pnt3dEND = pnts3dPoly[j];
ObjectId idLine = Draw.addLine(pnt3dBEG, pnt3dEND);
Point3dCollection pnts3d = tinSurf.SampleElevations(idLine);
if (pnts3d.Count > 0)
{
for (int k = 0; k < pnts3d.Count; k++)
{
if (pnts3d[k].Z > 0)
{
pnts3dBNDY.Add(pnts3d[k]);
}
else
{
string mess = string.Format("Area Limit outside surface at X={0}, Y={1}\n EXITING PROGRAM", pnts3d[k].X, pnts3d[k].Z);
Autodesk.AutoCAD.ApplicationServices.Application.ShowAlertDialog(mess);
}
}
idLine.delete();
}
else
{
Autodesk.AutoCAD.ApplicationServices.Application.ShowAlertDialog("intUBnd not > 0 at: " + j + " -See Blue lines where boundary is outside surface limit");
idLine.changeProp(color, "DEBUG-0", LineWeight.LineWeight211);
}
}
ObjectId id3dPline = pnts3dBNDY.addPoly3d();
id3dPline.changeProp(color, nameSurfaceX + "-BRKLINE-AREA");
TypedValue[] tvs = new TypedValue[3] {
new TypedValue(1001, "makeBOT"),
new TypedValue(1000, nameLayer),
new TypedValue(1000, "LIM")
};
id3dPline.setXData(tvs, "makeBOT");
return(id3dPline);
}
