Hi Erlend,
My initial guess is that the x,y position you are passing in has its origin
at the top left of the screen, whereas OSG expects the origin to the at the
bottom left of the screen.
Try changing:
float y = fabs((float) mouse_y / (float)wh);
to
float y = fabs((float)wh - (float) mouse_y / (float)wh);
Hope this helps!
Jason
On Sun, Apr 27, 2008 at 4:46 PM, <[EMAIL PROTECTED]> wrote:
> Im using osgViewer with an exisiting rendering engine as an embedded
> window. But i dont want to use the GUIEvent handler, as Im handling the
> events myself. I have followed the osgpick example, normally the x,y mouse
> pos is retrieved from the osgGA::GUIEventAdapter with the values[0,1]. I am
> passing the actual mouse coords [0,windowsize] to a method with the
> following code, scaling the values to [0,1] based on window size, but i
> Never get any hits..! Do you see what im doing wrong here?
>
>
>
>
>
> CODE:
>
> std::string Pick(int mouse_x, int mouse_y)
>
> {
>
> osgUtil::LineSegmentIntersector::Intersections intersections;
>
>
>
> int wx,wy,ww,wh;
>
> _window->getWindowRectangle(wx,wy,ww,wh);
>
>
>
> float x = (float) mouse_x / (float)ww; //ea.getX();
>
> float y = fabs((float) mouse_y / (float)wh); //ea.getY();
>
>
>
> if (_viewer->computeIntersections(x,y,intersections))
>
> {
>
> for(osgUtil::LineSegmentIntersector::Intersections::iterator hitr
> = intersections.begin(); hitr != intersections.end(); ++hitr)
>
> {
>
> if (!hitr->nodePath.empty() &&
> !(hitr->nodePath.back()->getName().empty()))
>
> {
>
> return hitr->nodePath.back()->getName();
>
> }
>
> else if (hitr->drawable.valid())
>
> {
>
> return "No name";
>
> }
>
> }
>
> }
>
> return "";
>
> }
>
>
>
> using osg 2.3.7 on vista-
>
>
>
> Thanks!
>
> Erlend
>
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> osg-users mailing list
> [email protected]
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
>
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