Hi Ben,
osgSim::SphereSegment is a very specialist feature, it's not design to
provide lots of flexibility. For the level of flexibility you require
you'll need to build your own collection of one or more osg::Geometry
leaves. Have a look at the osggeometry example as a guide.
Robert.
On Tue, Feb 24, 2009 at 9:13 PM, Ben Cain bc...@digitalfusion.com wrote:
Hello,
What’s the best way to draw a sphere with the ability to color some of the
surface’s segments differently? What I’m trying to do ... I’d like to
change the color of a given segment if it is intersected by a ray (leaving
the rest of the sphere color the same).
I’ve used the osgSim::SphereSegment, but I don’t think it allows for
explicitly coloring a specified segment. It looks like the entire Surface
is added as one drawable.
Would be easy to change how the way the Surface drawable is added … creating
a different drawable for every segment … and enabling them to be indexed by
azimuth/elevation angle (or range)?
I could start from scratch, but I was hoping to leverage
osgSim::SphereSegment in some way.
Any suggestions will be greatly appreciated!
Thanks,
Ben
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