Re: [qwtplot3d-interest] setResolution and Colours

[Micha B. <kri...@us...>]

Friday, July 25, 2003, 06:58:04, Dave Cooper wrote:

DC> 1. setResolution is excellent for reducing the data. It would be nice if it
DC> took a double and allowed for increasing the data set (ie. through spline
DC> interpolation).

Interpolation doesn't increase the dataset per se. It smoothes
(mostly) but the user has to provide sampling points. But you are
right - a conceivable extension to the status quo lies in using of
splines on top of the existing datas. In fact, one reason for me in
writing the library originates from the wish to learn more about
OpenGL. The NURBS and evaluator implementation are still unknown
subjects to me. So, I think to delve into the problem :-)


DC> 2. Colour - I find that a polygon is always entirely filled with the data
DC> colour of its lowest point. I'd really like to see the colour of the polygon
DC> shaded over its surface. This is a real problem with small spikes in my
DC> plots.

Fixed (CVS). You should see real Gouraud shading now.


Micha   
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