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Reading and writing these values from Python must happen in object mode. I added a plane and deleted one vertex, added the skin modifier and decreased the radius of one vertex.

>>> obj = bpy.data.objects['Plane']
>>> for v in obj.data.skin_vertices[0].data:
...     print(v.radius[:])
...     
(0.25, 0.25)
(0.25, 0.25)
(0.08836718648672104, 0.08836718648672104)

Each element in skin_vertices[0].data has radius, use_loose, use_root to read and write. Radii can be any two element iterable (tuple, list).

import bpy

obj = bpy.data.objects['Plane']
for v in obj.data.skin_vertices[0].data:
    v.radius = 0.2, 1.2

I just realized that ctrla lets you constrain the effect on radius per axis with shiftx,y.

Reading and writing these values from Python must happen in Object mode. I added a plane and deleted one vertex, added the skin modifier and decreased the radius of one vertex.

>>> obj = bpy.data.objects['Plane']
>>> for v in obj.data.skin_vertices[0].data:
...     print(v.radius[:])
...     
(0.25, 0.25)
(0.25, 0.25)
(0.08836718648672104, 0.08836718648672104)

Each element in skin_vertices[0].data has radius, use_loose, use_root to read and write. Radii can be any two element iterable (tuple, list).

import bpy

obj = bpy.data.objects['Plane']
for v in obj.data.skin_vertices[0].data:
    v.radius = 0.2, 1.2

I just realized that CtrlA lets you constrain the effect on radius per axis with ShiftX,Y.

Reading and writing these values from Python must happen in object mode. I added a plane and deleted one vertex, added the skin modifier and decreased the radius of one vertex.

import bpy

obj = bpy.data.objects['Plane']
for v in obj.data.skin_vertices[0].data:
    v.radius = 0.2, 1.2

Each element in skin_vertices[0].data has radius, use_loose, use_root to read and write. Radii can be any two element iterable (tuple, list).

>>> for v in obj.data.skin_vertices[0].data:
...     print(v.radius[:])
...     
(0.25, 0.25)
(0.25, 0.25)
(0.08836718648672104, 0.08836718648672104)

I just realized that ctrla lets you constrain the effect on radius per axis with shiftx,y.

Reading and writing these values from Python must happen in object mode. I added a plane and deleted one vertex, added the skin modifier and decreased the radius of one vertex.

>>> obj = bpy.data.objects['Plane']
>>> for v in obj.data.skin_vertices[0].data:
...     print(v.radius[:])
...     
(0.25, 0.25)
(0.25, 0.25)
(0.08836718648672104, 0.08836718648672104)

Each element in skin_vertices[0].data has radius, use_loose, use_root to read and write. Radii can be any two element iterable (tuple, list).

import bpy

obj = bpy.data.objects['Plane']
for v in obj.data.skin_vertices[0].data:
    v.radius = 0.2, 1.2

I just realized that ctrla lets you constrain the effect on radius per axis with shiftx,y.

May work only in object mode. I added a plane and deleted one vertex, added the skin modifier and decreased the radius of one vertex.

import bpy

obj = bpy.data.objects['Plane']
for v in obj.data.skin_vertices[0].data:
    v.radius = 0.2, 1.2

Each element in skin_vertices[0].data has radius, use_loose, use_root to read and write. Radii can be any two element iterable (tuple, list), but modiifying these values from python must happen in object mode.

>>> for v in obj.data.skin_vertices[0].data:
...     print(v.radius[:])
...     
(0.25, 0.25)
(0.25, 0.25)
(0.08836718648672104, 0.08836718648672104)

I just realized that ctrla lets you constrain the effect on radius per axis with shiftx,y.

Reading and writing these values from Python must happen in object mode. I added a plane and deleted one vertex, added the skin modifier and decreased the radius of one vertex.

import bpy

obj = bpy.data.objects['Plane']
for v in obj.data.skin_vertices[0].data:
    v.radius = 0.2, 1.2

Each element in skin_vertices[0].data has radius, use_loose, use_root to read and write. Radii can be any two element iterable (tuple, list).

>>> for v in obj.data.skin_vertices[0].data:
...     print(v.radius[:])
...     
(0.25, 0.25)
(0.25, 0.25)
(0.08836718648672104, 0.08836718648672104)

I just realized that ctrla lets you constrain the effect on radius per axis with shiftx,y.