I got a good result!

Today, I tried again, I got a good result. (^_^)

I don't know why I couldn't get this result yesterday, maybe it's cause of my mistakes.

Thanks Dolf, We could advance the project to next level. (^_^)

<CODE>

# So lets go do some face selecting in Blender 3D using the python api.

# I will give a few very simple examples

# BE AWARE THAT FOR THESE EXAMPLES YOU MUST HAVE A MESH SELECTED AND IN OBJECT MODE!

# AND FOR TESTING USE ONE OF THE EXAMPLES AT A TIME.

# First import bpy to get access to well... everything in blender

import bpy

# Now we want to get the active object

# To do this we go through bpy.context... because that is basicly "what you are working on right now"

# bpy.data could work too, but then you'd need to do more work to find your current active object

ob = bpy.context.active_object

# MAKE SURE WE ARE IN OBJECT MODE FOR SELECTING

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

# SELECTING EVERY OTHER FACE

# Lets loop through all the faces in the mesh

for i, f in enumerate(ob.data.faces):

# See if the current iteration/number i is odd or even

if i % 5 == 0:

# Set select to true

f.select = True

else:

f.select = False

# MAKE SURE WE ARE IN EDIT MODE FOR EXTRUDE AND TRANSLATE

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

# Extrude the selection (do not move it)

bpy.ops.mesh.extrude(type='FACES')

# Get the screen areas we are working in right now

areas = bpy.context.screen.areas

# Loop through all the areas

for area in areas:

# See if the current area is a 3D view

if area.type == 'VIEW_3D':

# Set the pivot point to individual origins

area.active_space.pivot_point = 'INDIVIDUAL_ORIGINS'

# Transform selected faces. tValue = move

tValue = -1.0

bpy.ops.transform.shrink_fatten(value=tValue, mirror=False, proportional='DISABLED', proportional_edit_falloff='SMOOTH', proportional_size=1, snap=False, snap_target='CLOSEST', snap_point=(0, 0, 0), snap_align=False, snap_normal=(0, 0, 0), release_confirm=False)

# Resize the Extruded Faces. sValue = scale

sValue = 0.7

bpy.ops.transform.resize(value=(sValue,sValue,sValue), constraint_axis=(True, True, True), constraint_orientation='LOCAL', mirror=False, proportional='DISABLED', proportional_edit_falloff='SMOOTH', proportional_size=0.0762767, snap=False, snap_target='CLOSEST', snap_point=(0, 0, 0), snap_align=False, snap_normal=(0, 0, 0), texture_space=False, release_confirm=False)

# Set to the Object mode

bpy.ops.object.editmode_toggle()

</CODE>

1. Add a Cube, and deselect the all faces in [Edit] mode. Then return to [Object] mode.

2. Run the script, I got this result.

Of course, if I deselect the all faces in script first, the process of deselecting all faces in (1.)are no needed.