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 Surface Chart Interpolation Methods |
| Posted by Jason Adams on Jul-29-2011 02:34 |
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I'm aware that Surface Charts have the option of either Linear Interpolation and Spline
Interpolation, but I was hoping and wondering whether further methods are available ? or
are planned to become available.
In particular, I was hoping to find Thine Plate Spline interpolation.
Thanks!  |
| Re: Surface Chart Interpolation Methods |
| Posted by Peter Kwan on Jul-29-2011 03:32 |
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Hi Jason,
Unluckily, in the short term, there is no plan to implement other 3D surface interpolation method.
For thin plate spline, you may consider to compute the spline coefficients yourself. Then you can compute the value of 50 x 50 points on the spline, and pass the points to ChartDirector to plot the surface. This works because for any smooth surface (no matter what the surface generating algorithm is), if you look at a sufficiently small patch of the surface, it always approximate a flat surface to the first order, and to a local interpolating spline surface (which is the type of spline used by ChartDirector) to a higher order. So the surface plotted by ChartDirector should closely approximate the real surface.
Regards
Peter Kwan |
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