A sphere is a special case of brep composed of a single surface. In this case you can use directly the "evaluate surface" component to get the normal vector and connect it and the point to a "line SDL" component (the only parameter left is the line length). If you've got the point in world coordinates, you've got to find out the corresponding uv coordinates of the surface by using the "surface CP" component. If your brep is made out of multiple surfaces, you've got to explode it using the "Brep components" component and select the desired surface (using the "list item" component, for example) before the "evaluate surface" component.
On Apr 5, 9:31 pm, renaud <[email protected]> wrote: > how can we create a normal line from a point on Brep like a sphere?
