Hello.I have a similar approach you could try using the AreaOnAreaOverlayer with draped features and surface triangles which works quite nicely
Hi Dave thank you for you response, much appreciated.Being very new to FME i have created the work space to what i believe is as per your instruction.Does it look correct to you?i'm getting very unusual mesh creation in the inspector, and took almost 3 hours to create.
I have attached below a very basic image of what i am trying to achieve with FME.
Hopefully i'm very close
Hi@mortonprice,
It would be nice if FME could clip surfaces - this is something we are currently working on.
However, in the meantime, I do have a workaround for you, although it is a little complex:
- Use a SurfaceDraper to drape your cutting boundaries on the point cloud, setting Drape Method to MODEL
- Use a TINGenerator to create Triangles from the point cloud, with the draped boundaries used for Breaklines.This will ensure that the triangle boundaries follow the boundary lines
- Send the Triangles to a GeometryExtractor to store the geometry in an attribute
- Use a CenterPointReplacer to replace the triangles with points
- Clip the points by the boundary lines with a Clipper
- Restore the kept points triangle geometry with a GeometryReplacer
- Send the triangles to an Aggregator to build a multisurface
- Use a Triangulator to replace the multisurface with a more efficient mesh.