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import bpy import numpy as np from bpy_extras.mesh_utils import ngon_tessellate from random import randint

def generateObj(name, verts, faces, loc = np.array([0,0,0]), col = ( 1.0, 1.0, 1.0, 1.0 )):

  mymesh = bpy.data.meshes.new(name)
  myobject = bpy.data.objects.new(name,mymesh)
       
  mymat = bpy.data.materials.new("Mesh_mat")
  mymat.diffuse_color = col
  mymesh.materials.append(mymat)
  
  myobject.location = loc #(0,0,0) #bpy.context.scene.cursor.location
  bpy.context.collection.objects.link(myobject)

  mymesh.from_pydata(verts,[],faces)
  mymesh.update(calc_edges=True)

# six points on a rectangle #a = np.array([0.0, 0.0, 0.0]) #b = np.array([1.0, 0.0, 0.0]) #c = np.array([1.0, 1.0, 0.0]) #d = np.array([1.0, -1.0, 0.0]) #e = np.array([-1.0, -1.0, 0.0]) #f = np.array([-1.0, 0.0, 0.0])

def genMesh(pointList):

  
  vertex = []

  for i in range(0, len(pointList)):
      vertex.append(i)

  faces = ngon_tessellate(pointList, vertex)
  print( faces )
  # => [(4, 3, 0), (4, 0, 5)]
  # How can it loop over 6 vertices forming a convex shape with 2 triangles ?

  print(faces,vertex)
  v = [vertex]

  generateObj("whatever", pointList   , v)
  
  

#v = [np.array([0,0,0]), np.array([1,0,0]), np.array([1,1,0]), np.array([0,1,0]), np.array([0,0,1]), np.array([1,0,1]), np.array([1,1,1]), np.array([0,1,1])] #print(v)

#v = [] #for i in range(0, randint(0,20)): # a = np.array([randint(-10,10), randint(-10,10), randint(-1,1)]) # print(a) # v.append(a)

v = [np.array([0,0,0]), np.array([0,5,0]), np.array([5,0,0]), np.array([5,7,0]), np.array([7,5,0])] genMesh(v)