Hi all. I have been trying to create lines at intersection points of every curtain wall panel by 90 degree to each hosting panels.So far my plan was , get every curtain panel boundry lines and corner vertex of them. create a surface or plane from this points or polycurves , then take their normals and create lines from vertex and normal for each panel. Here is the result. i feel i am close to solve this but somehow plane normal does not function as i expected. What am i missing here, any idea?
see how the normal for each plane is pointed towards same direction.