surface of a polygon



  • THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 15/05/2010 at 09:41, xxxxxxxx wrote:

    User Information:
    Cinema 4D Version:   11.5 
    Platform:   Windows  ;   
    Language(s) :     C++  ;

    ---------
    Does anyone know how I would determine if a certain point in space falls on the plane of a polygon?  Is there an SDK function for this?

    Wishful thinking I'm sure but I fiugured I'd ask.

    ~Shawn



  • THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 18/05/2010 at 05:09, xxxxxxxx wrote:

    Hi,

    there's lots of resources about that on the net, just search for point poly intersect / point plane intersect.



  • THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 18/05/2010 at 06:38, xxxxxxxx wrote:

    I am looking for this in google but I am not finding a specific page that discusses point/polygon intersection.  I see a lot that discusses line/plane intersection.  Is this the same idea?

    ~Shawn



  • THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 18/05/2010 at 09:54, xxxxxxxx wrote:

    okay so I got a formula for determining the distance of a point from a plane..   which looks like this

    D = |ax0 + by0 + cz0 + d|
        _____________________
      Sqrt(a2 + b2 + c2)

    I am wondering how do I determine the numbers needed for the plane which is the numerator in this equation.

    Anyone have any idea?  :)

    ~Shawn


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