Getting screen (x,y) from lat/lon

[Warren-Whitfield]

Hi
Is there a reverse function of the getGeoPointUnderMouse() function? I need the screen position (well the mouse position really) from the lat/lon.

[gwaldron]

Excuse any typos.

GeoPoint map_coords;
...
// convert your map coordinates to world coords:
osg::Vec3d world;
map_coords.toWorld(world);
...
// convert world coords to screen coords. For this you need an osg::Camera.
auto V = camera->getViewMatrix();
auto P = camera->getProjectionMatrix();
auto W = camera->getViewport()->computeWindowMatrix();
auto screen_coords = world * (V * P * W);

[Warren-Whitfield]

Cool Thx!