Derivative of CCurve



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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 21/12/2008 at 15:02, xxxxxxxx wrote:

    User Information:
    Cinema 4D Version:   11 
    Platform:      Mac OSX  ; 
    Language(s) :     C++  ;

    ---------
    I need the derivative of a CCurve at a random point (not necessarily a key point).

    CalcHermite() works fine for the original function but not for the derivative.
    If I draw a straight line in the timeline the results of the derivative should be constant but they are not.

    Is this a bug or am I missing something?

    Thanks in advance
    Macm



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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 06/01/2009 at 09:02, xxxxxxxx wrote:

    Make sure to get the tangents of the keys with CCurve::GetTangents(). Also check for the different interpolation types (linear, step). For these you have to calculate the derivative yourself.

    cheers,
    Matthias


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