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Improved taper ratio computation

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This commit is contained in:
Robert Osfield 2007-05-30 17:56:43 +00:00
parent 7b31aeca43
commit 9b1426e47e
1 changed files with 8 additions and 3 deletions
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11
src/osgSim/OverlayNode.cpp
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@ -1410,7 +1410,8 @@ void OverlayNode::traverse_VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY(osg::NodeVis
osg::Vec2d v_max = va + (vb-va) * ( (max_up - va.y())/(vb.y()-va.y()) );
double mid_va_side = (v_max.x() + v_min.x())*0.5;
if (v_min.x() < mid_side &&
if (v_min.x() > v_max.x() &&
v_min.x() < mid_side &&
v_max.x() < mid_side &&
mid_va_side > min_side)
{
@ -1427,7 +1428,8 @@ void OverlayNode::traverse_VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY(osg::NodeVis
osg::Vec2d v_max = va + (vb-va) * ( (max_up - va.y())/(vb.y()-va.y()) );
double mid_va_side = (v_max.x() + v_min.x())*0.5;
if (v_min.x() > mid_side &&
if (v_min.x() < v_max.x() &&
v_min.x() > mid_side &&
v_max.x() > mid_side &&
mid_va_side < max_side)
{
@ -1442,7 +1444,10 @@ void OverlayNode::traverse_VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY(osg::NodeVis
// osg::notify(osg::NOTICE)<<"Crossing va="<<va<<" vb="<<vb<<std::endl;
}
}
}
}
if (topLeft.x() < min_side) min_side = topLeft.x();
if (topRight.x() > max_side) max_side = topRight.x();
#if 0
osg::notify(osg::NOTICE)<<"a topLeft = "<<topLeft<<std::endl;