Hi, Jean-Sébastien.
When you've given me that code I've rearranged it in a way that would
be more intuitive to me and it turned out to be this one below. Nothing much
really. Just some methods calls,... well, see for yourself - nothing really
changed. But I'm worried about something, since it didn't work. I've
realized that the 'for' marked in the code is a little bit strange for what
I want to happen.
As I recall, it was used as it is to keep showing the coordinates of
the point you were on with the mouse cursor, in the osgpick example. Is it
appropriate in my case? I just want the color to change when I push the left
button...
Thanks again,
Renan M Z Mendes
bool PickHandler::handle(const osgGA::GUIEventAdapter& ea,
osgGA::GUIActionAdapter& aa)
{
osgViewer::Viewer* viewer = dynamic_cast<osgViewer::Viewer*>( &aa );
osgUtil::LineSegmentIntersector::Intersections intersections;
if(!viewer)
{ return false; }
switch(ea.getEventType())
{
case(osgGA::GUIEventAdapter::PUSH):
{
if(Intersecao(viewer, ea, intersections))
{
osg::notify(osg::NOTICE)<< "SELECAO" << std::endl;
for(osgUtil::LineSegmentIntersector::Intersections::iterator hitr =
intersections.begin(); hitr != intersections.end();
++hitr) // I'M TALKING ABOUT THIS ONE
{
if(hitr->drawable.valid())
{
osg::ShapeDrawable* shapedrawable =
dynamic_cast<osg::ShapeDrawable*>(hitr->drawable.get());
shapedrawable->setColor(osg::Vec4(1.0, 0.0, 0.0,
1.0));
}
}
}
}
}
}
bool PickHandler::Intersecao(osgViewer::Viewer* viewer, const
osgGA::GUIEventAdapter& ea,
osgUtil::LineSegmentIntersector::Intersections
intersections)
{
return (viewer->computeIntersections(ea.getX(),ea.getY
(),intersections));
}
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