Re: [osg-users] how to draw a Curved Surface on the top of terrain?

Hi, thanks for all your replies; use overlaynode,but the projected texture is not right, any ideas?thanks!! attached : yellow lines-profile of geometry Code: geometry->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::POLYGON,0,v->size())) ; geode->addChild(geometry); osgSim::OverlayN

Re: [osg-users] how to draw a Curved Surface on the top of terrain?

Thanks for your reply! I want to draw a curved surface dynamic, like the function Mesure area in skyline. now i have the profile line of the curved surface,but just lines,not a polygon or a surface. my issue is: how to display the profile line to be a enclosed area, not lines. use OverlayNode?

[osg-users] how to draw a Curved Surface on the top of terrain?

Hi, 1、how to draw a Curved Surface on the top of terrain? like the fig1. 2、how to compute the surface area of the Curved Surface? any examples?? thanks a lot!! Cheers, lipan -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=15723#15723 <>_