[mapserver-dev] Rendering smoothed lines

[Daniel Morissette]

Hi Devs,

Has anyone been thinking about adding support for line smoothing 
(b-spline, Bezier curves, ?) in MapServer? I believe AGG supports this 
already, is this an option that we could enable easily for AGG rendering?

More specifically, we've been asked about the ability to smooth contour 
lines as we zoom out (probably more a combination of simplifying and 
smoothing). In the contour case it would not be sufficient to do the 
smoothing at the renderer level (i.e. in AGG) since we also want the 
contour labels to be positioned properly on top of the smoothed contour. 
For this reason we may instead want to implement smoothing as a 
GEOMTRANSFORM operation.

This raises another question: Do GEOMTRANSFORM operations also apply to 
labels? (RFC-72 suggests that this planned enhancement would not be in 
place yet)

Daniel
-- 
Daniel Morissette
http://www.mapgears.com/
Provider of Professional MapServer Support since 2000