Scaling UVmap

Coding Python Support
1

Hi, all.

I’m trying to scale an existing UV map for currently selected object, the log window suggest the following:


bpy.ops.uv.select_all(action='TOGGLE')
bpy.ops.transform.resize(value=(20, 20, 20), constraint_axis=(False, False, False), constraint_orientation='GLOBAL', mirror=False, proportional='DISABLED', proportional_edit_falloff='SMOOTH', proportional_size=1)

However, this works when I hover over the UV map, when I run it as a script with blender running in background, it scales the object instead.

Can it be solved?

Thanks,
Denis.

2

Figured it out.
For some reason, there is no built in blender function to scale UV, but this works…


def scaleUV(obj, pivot, scale):


    uvMap = obj.data.uv_layers[0]
    for d in uvMap.data:
        d.uv[0] = pivot[0] + scale[0]*(d.uv[0] - pivot[0])
        d.uv[1] = pivot[1] + scale[1]*(d.uv[1] - pivot[1])
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