#66 Floors as roofs on above story zone


Draw a horizontal surface with z > 0, extrude it up, the walls and roof are correctly recognized but the floor remains a roof.


  • Dan Macumber

    Dan Macumber - 2009-09-23

    Date: Tues, Sep 22 2009 8:40 pm
    From: Dan M

    I did a quick test and it does appear that SketchUp 7.0.10247 does do
    some tricky stuff with faces. Faces on z = 0 do seem to have downward
    normals irregardless of the order the vertices are drawn in. Also,
    normals of new faces are set to match existing, co-planar faces if the
    two share an edge. Is this behavior documented somewhere and is it
    possible to alter it?

    Thanks a lot,

    On Sep 22, 9:22 pm, Dan M <dan.macum...@gmail.com> wrote:

    Hello, I have started to look into an issue in an existing plugin and
    am having trouble identifying if the following behavior is coming from
    SketchUp or the plugin. When I draw a horizontal face using the line
    tool on any plane other than z = 0 the face normal follows the right
    hand rule according to the order that I draw the points of the face
    polygon. When I draw this face on z = 0 the normal is always
    downward, no matter which way I input the points. Is this behavior
    expected from SketchUp (without any plugins)?

    Thanks a lot,

  • Dan Macumber

    Dan Macumber - 2010-01-29
    • milestone: 897346 -->
    • assigned_to: nobody --> macumber
    • status: open --> open-accepted
  • Dan Macumber

    Dan Macumber - 2010-01-29

    Is there anything to be done here beside documentation?


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