Thanx mery much Skylark,
here is the correct code, the "Blue" color is update.
Code:
[color=green]//positions[/color]
osg::Vec3f v3f_start(33.0f, -23.0f, 10.0f); [color=green]//init position (
start )[/color]
osg::Vec3d v3f_end(33.0f, -23.0f, -5.0f); [color=green]//init
position ( end )[/color]
[color=green]//create group[/color]
osg::ref_ptr<osgUtil::IntersectorGroup> intersectorGroup = new
osgUtil::IntersectorGroup();
osg::ref_ptr<osgUtil::LineSegmentIntersector> intersector = new
osgUtil::LineSegmentIntersector(v3f_start, v3f_end);
intersectorGroup->addIntersector( intersector.get() );
osgUtil::IntersectionVisitor intersectVisitor( intersectorGroup.get(),
new MyReadCallback );
model->accept(intersectVisitor);
[color=green]//call first test[/color] check_face(intersectorGroup);
[color=green]//update position[/color]
osgUtil::IntersectorGroup::Intersectors& ints =
intersectorGroup->getIntersectors();
for(osgUtil::IntersectorGroup::Intersectors::iterator intersector_itr2
= ints.begin();
intersector_itr2 != ints.end();
++intersector_itr2)
{
osgUtil::LineSegmentIntersector* lsi =
dynamic_cast<osgUtil::LineSegmentIntersector*>(intersector_itr2->get());
if (lsi)
{
v3f_start.set(33.0f, 23.0f, 10.0f);
[color=green]//new position ( start )[/color]
v3f_end.set(33.0f, 23.0f, -5.0f); [color=green]//new position ( end
)[/color]
lsi->setStart( v3f_start );
lsi->setEnd( v3f_end );
}
}
[color=green]//reset and re-run (must be!)[/color]
[color=blue]intersectVisitor.reset();
model->accept(intersectVisitor);[/color]
[color=green]//call 2nd test[/color]
check_face(intersectorGroup);
Function for test is here:
Code:
void check_face(osgUtil::IntersectorGroup *intersectorGroup)
{
if ( intersectorGroup->containsIntersections() )
{
osgUtil::IntersectorGroup::Intersectors& intersectors =
intersectorGroup->getIntersectors();
for(osgUtil::IntersectorGroup::Intersectors::iterator
intersector_itr = intersectors.begin();
intersector_itr != intersectors.end();
++intersector_itr)
{
osgUtil::LineSegmentIntersector* lsi =
dynamic_cast<osgUtil::LineSegmentIntersector*>(intersector_itr->get());
if (lsi)
{
osgUtil::LineSegmentIntersector::Intersections&
intersections = lsi->getIntersections();
for(osgUtil::LineSegmentIntersector::Intersections::iterator itr =
intersections.begin();
itr != intersections.end();
++itr)
{
const
osgUtil::LineSegmentIntersector::Intersection& intersection = *itr;
osg::Vec3f lv_pos;
lv_pos =
intersection.getWorldIntersectPoint();
}
}
}
}
}
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=11996#11996
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