[Bf-python] Mesh custom layer api change

[Campbell Barton]

I dont see a problem, if this function existed it would just work like this

if (me.verts.getPropertyType('foo')==int): ....

Incase anyones interested I just used this (undocumented) api to store
colors in a vertex point cloud.

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from Blender import Scene, Mesh, Window, sys

import BPyMessages

import bpy





def col2int(r,g,b):

	# Range check to be safe

	if r < 0: r = 0

	if g < 0: g = 0

	if b < 0: b = 0

		

	if r > 255: r = 255

	if g > 255: g = 255

	if b > 255: b = 255

	

	return (r<<16) | (g<<8) | b



# Not used here

def int2col(rgb):

	return (rgb>>16) & 255, (rgb>>8) & 255, rgb & 255



def main():

	sce = bpy.data.scenes.active

	

	

	file = '/test.ply'

	

	vecs = []

	cols = []

	lines = open(file, 'rU')

	for l in lines:

		words = l.split()

		if len(words)==6:

			vecs.append( (float(words[0]), float(words[1]), float(words[2])) )

			cols.append( col2int( int(words[3]), int(words[4]), int(words[5]) ) )

	

	me = bpy.data.meshes.new('colmesh')

	me.verts.extend( vecs )

	me.verts.addPropertyLayer('vcol', Mesh.PropertyTypes.INT)

	

	for i, v in enumerate(me.verts):

		v.setProperty('vcol', cols[i])

	

if __name__ == '__main__':

	main()

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from Blender import Scene, Mesh, Window, sys
import BPyMessages
import bpy


def int2col(rgb):

	return (rgb>>16) & 255, (rgb>>8) & 255, rgb & 255

# Read colors back
def my_mesh_util(me):

	for i, v in enumerate(me.verts):

		c=v.getProperty('vcol')

		print int2col(c)

my_mesh_util()

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