I want to move a vertices to Normal directon of origin vertex by Python.

Coding Python Support
#1

I am a person who want to learn a python.

At this time, I want to move a vertex to normal direction of origin vertex through python.

Lock at below image.


how to move or copy a vertex to normal direction ?

Please answer to me.
Thank you.

Attachments


#2

In your first picture, it doesn’t look like using vertex normals, but rather interpolated face normals (turn on vertex normal in N panel and see yourself, they are “point” apart from each other, so not parallel like in your picture).

In your second picture, it looks more like the face normal?

Vertex and Face Normals.png960×540 8.98 KB

(Face normals in light blue, vertex normals in dark blue)

#3

First of all , thank you your reply.

But first image is it’s true normal direction.
Show to you a below image.

file : http://shshop.da.to/tmp/Copy_Vertices_to_Normal_Direction.blend

#4 
import bpy
import bmesh
from bpy.props import FloatProperty
from mathutils import *


class SimpleOperator(bpy.types.Operator):
    """Tooltip"""
    bl_idname = "mesh.move_verts_normal"
    bl_label = "Move Vertices along Normal"
    bl_options = {'REGISTER', 'UNDO'}

    factor = FloatProperty(
        name="Factor",
        min=-1000.0,
        max=1000.0, 
        soft_min=-10.0,
        soft_max=10.0
    )

    @classmethod
    def poll(cls, context):
        return (context.object is not None and
                context.object.type == 'MESH' and
                context.object.data.is_editmode)

    def execute(self, context):

        ob = bpy.context.object
        me = ob.data
        bm = bmesh.from_edit_mesh(me)
        
        for v in bm.verts:
            if v.select:
                v.co += v.normal * self.factor
                
        bmesh.update_edit_mesh(me, True, False)
        return {'FINISHED'}


def register():
    bpy.utils.register_class(SimpleOperator)


def unregister():
    bpy.utils.unregister_class(SimpleOperator)


if __name__ == "__main__":
    register()

Run the script, move cursor over 3D View, hit spacebar and search for Move Vertices along Normal. Hit enter and see redo panel to tweak factor.

1 Like
#5

Thank you your reply.
It’s give to me many learning.