measureit_geometry.py 文件源码

def get_render_location(mypoint):

    v1 = Vector(mypoint)
    scene = bpy.context.scene
    co_2d = object_utils.world_to_camera_view(scene, scene.camera, v1)
    # Get pixel coords
    render_scale = scene.render.resolution_percentage / 100
    render_size = (int(scene.render.resolution_x * render_scale),
                   int(scene.render.resolution_y * render_scale))

    return [round(co_2d.x * render_size[0]), round(co_2d.y * render_size[1])]


# ---------------------------------------------------------
# Get center of circle base on 3 points
#
# Point a: (x,y,z) arc start
# Point b: (x,y,z) center
# Point c: (x,y,z) midle point in the arc
# Point d: (x,y,z) arc end
# Return:
# ang: angle (radians)
# len: len of arc
#
# ---------------------------------------------------------