SplineData.GetPoint(r) problem

  • On 10/08/2013 at 04:54, xxxxxxxx wrote:

    Hi guys. Another weird issue with me:)

    I have a Spline GUI in interface. Once it's loaded it looks like this:

    And console spits point position like this:

    Point:0 position Vector(0, 1, 0)
    Point:1 position Vector(1, 1, 0)

    Everything seems to nice and dandy, however, ... Once I manualy add points on that spline:

    console seems to be spiting something weird:

    Point:0 position Vector(0, 1, 0)
    Point:1 position Vector(1, 0, 0)
    Point:2 position Vector(1, 0, 0)
    Point:3 position Vector(1, 0, 0)
    Point:4 position Vector(1, 0, 0)
    Point:5 position Vector(1, 0, 0)

    Why are all points starting from point 1 are at position 1,0,0? I don't get it.

    Here's the code I am using.

    pointCount = op[SPLINE_SIZE].GetKnotCount()   
    print ("Knot count " , pointCount)   
    for i in range (0, pointCount) :   
              PointPos = op[SPLINE_SIZE].GetPoint(i)   
              print ("Point:%s position %s " % (i, PointPos))   

  • On 10/08/2013 at 05:24, xxxxxxxx wrote:

    You should not use an index, but a position.


    Gets a point from its X coordinate.

    Parameters: r  (float) – The x position
    Return type: [Vector](file:///D:/pgrooff/Documents/pim/c4d/Python%20Help%20R14/help/modules/c4d/Vector/index.html#c4d.Vector)
    Returns: The position

    So for example spline.GetPoint(60.0), get the values for x=60.
    I have set the range to 100.

    By the way did you set the range correctly?
    E.g. self.sd.SetRange(xmin=0, xmax=100, xsteps=1, ymin=0, ymax=100, ysteps=1)

    Note: I do not use a .res file to define the SplineControl.

    You can check the range using:

    sdrange = spline.GetRange()
    print sdrange['xmin'], sdrange['xmax'], sdrange['xsteps'], sdrange["ymin"], sdrange["ymax"], sdrange["ysteps"]

  • On 10/08/2013 at 05:34, xxxxxxxx wrote:

    Yes indeed. So I ended up using GeKnots()

    knots = op[SPLINE_SIZE].GetKnots()   
    print knots[I]["vPos"]   

    Uhuu :)

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