Numpy support

Using numpy to create mesh and get back its primitives

• Python

  import meshlib.mrmeshnumpy as mrmeshnumpy
  import numpy as np
   
  faces = np.ndarray(
      shape=(2, 3),
      dtype=np.int32,
      buffer=np.array(
          [
              [0, 1, 2],
              [2, 3, 0],
          ],
          dtype=np.int32,
      ),
  )
   
  # mrmesh uses float32 for vertex coordinates
  # however, you could also use float64
  verts = np.ndarray(
      shape=(4, 3),
      dtype=np.float32,
      buffer=np.array(
          [
              [0.0, 0.0, 0.0],
              [1.0, 0.0, 0.0],
              [1.0, 1.0, 0.0],
              [0.0, 1.0, 0.0]
          ],
          dtype=np.float32,
      ),
  )
   
  mesh = mrmeshnumpy.meshFromFacesVerts(faces, verts)
   
  # some mesh manipulations
   
  out_verts = mrmeshnumpy.getNumpyVerts(mesh)
  out_faces = mrmeshnumpy.getNumpyFaces(mesh.topology)