public static void testCreatePlateau()
{
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
//select a surface
PromptEntityOptions selSurface = new PromptEntityOptions("\nSelect a tin surface: ");
selSurface.SetRejectMessage("\nOnly tin surface allowed");
selSurface.AddAllowedClass(typeof(TinSurface), true);
PromptEntityResult resSurface = ed.GetEntity(selSurface);
if (resSurface.Status != PromptStatus.OK)
{
return;
}
ObjectId surfaceId = resSurface.ObjectId;
//select a polyline
PromptEntityOptions selPline = new PromptEntityOptions("\nSelect a polyline: ");
selPline.SetRejectMessage("\nOnly polylines allowed");
selPline.AddAllowedClass(typeof(Polyline), true);
PromptEntityResult resPline = ed.GetEntity(selPline);
if (resPline.Status != PromptStatus.OK)
{
return;
}
ObjectId plineId = resPline.ObjectId;
//erase the pline?
PromptKeywordOptions selYesNo = new PromptKeywordOptions("\nErase polyline?");
selYesNo.Keywords.Add("Yes");
selYesNo.Keywords.Add("No");
PromptResult resYesNo = ed.GetKeywords(selYesNo);
if (resYesNo.Status != PromptStatus.OK)
{
return;
}
bool erasePline = resYesNo.StringResult.Equals("Yes");
Database db = Application.DocumentManager.MdiActiveDocument.Database;
using (Transaction trans = db.TransactionManager.StartTransaction())
{
TinSurface surface = trans.GetObject(surfaceId, OpenMode.ForWrite) as TinSurface;
Polyline pline = trans.GetObject(plineId, OpenMode.ForWrite) as Polyline;
var test = surface.ExtractGridded(SurfaceExtractionSettingsType.Model);
//find all vertices inside a pline area
ObjectIdCollection plinesBorder = new ObjectIdCollection();
plinesBorder.Add(plineId);
TinSurfaceVertex[] verticesInsidePline = surface.GetVerticesInsidePolylines(plinesBorder);
//set the new elevation for all vertices founded
surface.SetVerticesElevation(verticesInsidePline, pline.Elevation);
//now create a surface vertex at each pline vertex
for (int plineVertexIndex = 0; plineVertexIndex < pline.NumberOfVertices; plineVertexIndex++)
{
//get the pline coordinate
Point3d plineVertex0 = pline.GetPoint3dAt(plineVertexIndex);
Point3d plineVertex1 = pline.GetPoint3dAt(plineVertexIndex < (pline.NumberOfVertices - 1) ? plineVertexIndex + 1 : 0);
//create a surface vertex at each pline vertex
//this will ensure that we have a vertex at each corner,
//which is required for the next step (AddLine)
SurfaceOperationAddTinVertex res0 = surface.AddVertex(plineVertex0);
SurfaceOperationAddTinVertex res1 = surface.AddVertex(plineVertex1);
//finally create a line connecting the newly creted vertices
TinSurfaceVertex vertex0 = surface.FindVertexAtXY(res0.Location.X, res0.Location.Y);
TinSurfaceVertex vertex1 = surface.FindVertexAtXY(res1.Location.X, res1.Location.Y);
surface.AddLine(vertex0, vertex1);
}
trans.Commit();
}
}