How to extrude - basic question

Coding Python Support
1

Hi All:

Please help out a Scripting Novice with Extruding:

I want to extrude the bottom face of the default cube after subdividing it and deleting the left half.

My script (Text Editor: Main) selects the vertices and edges that make up that bottom face.

Now if I run the Extrude script the result it no what I wanted or expected.
I simply wanted the bottom face to be extruded 1 unit down in the Z direction. (Look what it did to the 3D cursor!!!).

Obviously there is much that I am missing here!

Blend file: Extrude Script.blend (472.7 KB)

Thanks for any help.

2

Isnt this what you are looking for?

Also, in line 8, you use:

bpy.ops.object.editmode_toggle()

but rather should use:

bpy.ops.object.mode_set(mode='EDIT')

Because otherwise, if you where in “Edit Mode” already, it would toggle you out into “Object Mode”.

3

Thanks for our reply.

From the Stackoverflow post, my takeaway is that the face (not just the vertices) has to be selected.

I tried that and got the result I wanted.

Would someone be kind enough to explain why my original effort produced the result that it did?

Thanks again.

4

Sry for having been inactive… real life issues…

Dont give too much about what I say, I am not a programmer at all, but the python console spits out:
"File “C.XYZ XXX.blend\Main”, line 11, in "
Line 11 is “bpy.ops.mesh.subdivide()”, whose documentation you can find here:
https://docs.blender.org/api/blender_python_api_2_63_7/bpy.ops.mesh.html

It says: " bpy.ops.mesh.subdivide( number_cuts=1 , smoothness=0.0 , quadtri=False , quadcorner=‘STRAIGHT_CUT’ , fractal=0.0 , fractal_along_normal=0.0 , seed=0 )

Subdivide selected edges"

But at that point in the script, you dont even have anything selected, so there is no context to subdivide on(?).