I am trying to generate a 3D solid of an octagon shape created using polylines. Because this code is to be supported on many versions of AutoCAD, I am using late binding. Here is the code written in C#:
//create polylines from vertices of an octagon - vertices below represent the octagon vertices
var octagonPolylines = new dynamic[8];
k = 0;
for (int i = 0; i <= 7; i++)
{
double[] startPoint = new double[] { vertices[k], vertices[k + 1], vertices[k + 2] };
double[] endPoint = new double[] { vertices[k + 3], vertices[k + 4], vertices[k + 5] };
octagonPolylines[i] = acModelSpace.AddLine(startPoint, endPoint);
k += 3;
}
//create a region from the polylines
object[] octagonRegion = acModelSpace.AddRegion(octagonPolylines);
// create an extruded solid from the region
foreach (dynamic obj in octagonRegion)
{
dynamic octagon3DSolid = acModelSpace.AddExtrudedSolid(obj, height, taperAngle);
}
I get an "Invalid Object Array" exception at the line where the method AddRegion is used.
I have tried many different approaches but cannot get this to work. Is there another or better way to generate an octagonal 3D solid using late binding? Any help in this matter would be sincerely appreciated.
Thank you
