I'm creating a conical frustum in blender using a function. The problem occurs when I extrude the upper ring of the mesh after adding a few loop cuts. For some reason the script doesn't just extrude the upper ring, but all created loop cuts. It seems that there isn't a command in the context, that specifies that I have only selected the upper ring before the extrusion and so it extrudes all the loop cuts, since they stay active after I add them.
Can someone explain to me how to ensure that it only extrudes the last selected part of the mesh?
import bpy
# Reset scene/delete all objects
bpy.ops.object.mode_set(mode='OBJECT')
bpy.ops.object.select_all(action='SELECT')
bpy.ops.object.delete(use_global=False)
def create_NS(r1,r2):
'''Create a Normschliff from inputs for dimensions
of a frustum. r1 < r2. Supply r1, r2 in mm (int).
h is set as a constant factor based on the values
of r1,r2.'''
def get_override():
'''Obtains the current overwrite for a scene...or something.'''
for area in bpy.context.screen.areas:
if area.type == 'VIEW_3D':
for region in area.regions:
if region.type == 'WINDOW':
override = {'area': area, 'region': region, 'edit_object':bpy.context.edit_object}
return override
h = h_dict = {'29/32':55}[str(r1)+'/'+str(r2)]
bpy.ops.mesh.primitive_circle_add(vertices=64,
radius=r1/100,
enter_editmode=False,
align='WORLD',
location=(0, 0, 0),
scale=(1, 1, 1))
bpy.ops.object.shade_smooth()
bpy.ops.object.editmode_toggle()
bpy.ops.mesh.extrude_region_move(MESH_OT_extrude_region={"use_normal_flip":False,
"use_dissolve_ortho_edges":False,
"mirror":False},
TRANSFORM_OT_translate={"value":(0, 0, h/100),
"orient_axis_ortho":'X',
"orient_type":'GLOBAL',
"orient_matrix":((1, 0, 0), (0, 1, 0), (0, 0, 1)),
"orient_matrix_type":'GLOBAL',
"constraint_axis":(True, True, True),
"mirror":False,
"use_proportional_edit":False,
"proportional_edit_falloff":'SMOOTH',
"proportional_size":1,
"use_proportional_connected":False,
"use_proportional_projected":False,
"snap":False,
"snap_target":'CLOSEST',
"snap_point":(0, 0, 0),
"snap_align":False,
"snap_normal":(0, 0, 0),
"gpencil_strokes":False,
"cursor_transform":False,
"texture_space":False,
"remove_on_cancel":False,
"view2d_edge_pan":False,
"release_confirm":False,
"use_accurate":False,
"use_automerge_and_split":False})
scaling_fac = r2/r1
bpy.ops.transform.resize(value=(scaling_fac, scaling_fac, scaling_fac),
orient_type='GLOBAL',
orient_matrix=((1, 0, 0), (0, 1, 0), (0, 0, 1)),
orient_matrix_type='GLOBAL',
mirror=True,
use_proportional_edit=False,
proportional_edit_falloff='SMOOTH',
proportional_size=1,
use_proportional_connected=False,
use_proportional_projected=False)
override = get_override()
bpy.ops.mesh.loopcut_slide(override,
MESH_OT_loopcut={"number_cuts":4,
"smoothness":0,
"falloff":'INVERSE_SQUARE',
"object_index":0,
"edge_index":131,
"mesh_select_mode_init":(True, False, False)},
TRANSFORM_OT_edge_slide={"value":0,
"single_side":False,
"use_even":False,
"flipped":False,
"use_clamp":True,
"mirror":False,
"snap":False,
"snap_target":'CLOSEST',
"snap_point":(0, 0, 0),
"snap_align":False,
"snap_normal":(0, 0, 0),
"correct_uv":True,
"release_confirm":False,
"use_accurate":False})
bpy.ops.mesh.extrude_region_move(MESH_OT_extrude_region={"use_normal_flip":False,
"use_dissolve_ortho_edges":False,
"mirror":False},
TRANSFORM_OT_translate={"value":(0, 0, 0.15),
"orient_axis_ortho":'X',
"orient_type":'GLOBAL',
"orient_matrix":((1, 0, 0), (0, 1, 0), (0, 0, 1)),
"orient_matrix_type":'GLOBAL',
"constraint_axis":(False, False, True),
"mirror":False,
"use_proportional_edit":False,
"proportional_edit_falloff":'SMOOTH',
"proportional_size":1,
"use_proportional_connected":False,
"use_proportional_projected":False,
"snap":False, "snap_target":'CLOSEST',
"snap_point":(0, 0, 0),
"snap_align":False,
"snap_normal":(0, 0, 0),
"gpencil_strokes":False,
"cursor_transform":False,
"texture_space":False,
"remove_on_cancel":False,
"view2d_edge_pan":False,
"release_confirm":False,
"use_accurate":False,
"use_automerge_and_split":False})
create_NS(29,32)
