[AGG] Curve smoothing/fitting

[Gus G. <ag...@gr...>]

Hi all,

I have a data set that is loaded and the user should be able to tweak  
the points. The problem I'm having is that the curve smoothing on the  
data plot does not match the results of the spline code. If I use  
agg::bspline for the interpolation, I see the same problem. In the  
this screen grab (http://www.grubba.com/agg.png), I've plotted the  
data using both agg::conv_bspline and data poked directly to memory  
out of the spline (both AGG and my plot are using the same data set).  
In this application, there is no "correct" way to handle the data.  
Whichever way works fine. I just need consistency. The solution is to  
either find a way for me to have the same data AGG is interpolating  
or a way for AGG to use my interpolations. My math is not good enough  
to understand all of this.

TIA

gus