Determine Outside/Inside to Flip Normals

by Justin

Mar 5, 2015

Problem: I have gh surfaces with different normal directions (see image below). I would like to somehow determine what's inside or outside so I can flip the vectors to all point outward. I was thinking maybe using a bounding box around all the surfaces to somehow compare vectors that way then flip them accordingly??

Any help would be great!! Thanks.

  • up

    Daniel González Abalde

    I do not know why the picture has been obscured!
    Well, you can try to move 2 pt for each vector, the first with the normal vector, and the second with its inverse.
    Measures which is closer to the center point of the bounding box.
    If the closest is the first index, the normal vector is inward. If is the second index, means that the vector nomal going out.

    3

    Mar 5, 2015