Topic: change 3Dsolid Extrude distance

[WOWENS]

I have a 3Dsolid and I want to change the Extrude distance with code,
any ideas on how to do this.

[Bryco]

I extrude bolts from a 2d circle by clicking 2 pts, but I am not sure there is such a thing as an extrude distance. If the shape you are trying to change is always the same shape you might have a chance to do that.

[HOSNEYALAA]

Hi
Can you attached example drawing

[WOWENS]

It's a simple beam, I can change the Height with the properties box but I want to access it with .net

[Bryco]

In the object browser there is a AcadExtrudedSurfaceClass that has a get,set height  (see Interop.AutoCAD). It may be of some use.

[gile]

Hi,
You can use the Solid3d.ExtrudeFaces method.
To find the face to be extruded, you can use the Brep API.

Code - C#: [Select]

1.         private static void ChangeExtrusionHeight(Solid3d solid, Vector3d extrusionDirection, double newHeight)
2.         {
3.             var fullPath = new FullSubentityPath(
4.                     new[] { solid.ObjectId },
5.                     new SubentityId(SubentityType.Null, IntPtr.Zero));
6.             using (var brep = new Brep(fullPath))
7.             {
8.                 var face = brep.Faces
9.                     .Where(f => ((ExternalBoundedSurface)f.Surface).BaseSurface is Plane plane
10.                                 && plane.Normal.IsParallelTo(extrusionDirection))
11.                     .Select(f =>
12.                     {
13.                         var plane = (Plane)((ExternalBoundedSurface)f.Surface).BaseSurface;
14.                         return new { f.SubentityPath.SubentId, Height = Math.Abs(plane.Coefficients.D) };
15.                     })
16.                     .OrderByDescending(x => x.Height)
17.                     .First();
18.                 solid.ExtrudeFaces(new[] { face.SubentId }, newHeight - face.Height, 0.0);
19.             }
20.         }

[Bryco]

Cool for cats as usual gile