3dcoat/PythonAPI/uv_random_rotation_8py-example.html

# In this example we rotate all islands randomly and then pack them.

import coat


# go to the uv-room to set the context

coat.ui.toRoom("UV")


current_uv_set = coat.uv.currentUvSet()

n_islands = coat.uv.islandsCount(current_uv_set)

# run through all islands

for i in range(n_islands):

    island_mesh = coat.uv.islandToMesh(current_uv_set,i)

    # rotate the island randomly

    center = island_mesh.getBounds().GetCenter()

    island_mesh.transform(coat.mat4.RotationAt(center, coat.vec3.AxisZ, coat.math.Rand(0,360)))

    # update the island

    coat.uv.meshToIsland(island_mesh, current_uv_set, i)

coat.uv.pack(current_uv_set, False, True)


coat.mat4.RotationAt
mat4 RotationAt(Orig=vec2, Angle=float)
Definition coat.py:612

coat.math.Rand
float Rand(Lo=float, Hi=float)
Definition coat.py:1280

coat.ui.toRoom
toRoom(name=str)
switch to the room
Definition coat.py:3251

coat.uv.islandToMesh
Mesh islandToMesh(uv_set=int, island_index=int)
get the mesh that contains the island, xy of each point is the UV coordinate.
Definition coat.py:3991

coat.uv.meshToIsland
meshToIsland(mesh=Mesh, uv_set=int, island_index=int)
use the mesh (that was previously got by islandToMesh) to replace the island in the current uv-set
Definition coat.py:4038

coat.uv.islandsCount
int islandsCount(uv_set=int)
get the islands count over the current uv-set
Definition coat.py:3985

coat.uv.currentUvSet
int currentUvSet()
get the current uv-set index
Definition coat.py:3980

coat.uv.pack
pack(uv_set=int, rotate=bool, shuffle=bool)
pack the islands in the current uv-set
Definition coat.py:4044