Howdy,
I'm working with a large surface (100,000+ points) and need to generate multiple surfaces representing small areas of this surface. My first thought was to create a surface that will represent the first clipped area, and paste in the large surface into it, then add boundary. When exporting this surface, it still contains ALL 100,000+ points from the large surface, making the resulting surface slow to work with, and large LandXML size when exporting, even though the clipped area represents 1-3% of the size of the big surface.
I've tried using CREATECROPSURFACE command (horrible experience using this command), but it's only able to clop using a rectangle. (Is there any way to use a polyline for this crop?)
How can I create a bound surface while removing all geometry including points outside of the polyline extents?
As a demo consider 5x5 point grid starting at 0,0 coordinates.
Create a surface using all 25 of these points. Then create a boundary as seen in yellow in the image below.
When showing points in the surface style (red below), it shows what I'd want the final surface to contain, however when exporting LandXML I still see all points outside of the boundary still present when reading the LandXML file as plaintext.
I suppose for this demo the CREATECROPSURFACE command would work, since it's a perfect rectangle, however that's not the case.
I've developed some blender add-ons to help me do these tasks very efficiently, but when asked by my colleagues how to achieve this in Civil 3D, I'm at a loss.
Any ideas appreciated.
Matt
