private void drawBoundingVolumes(DrawContext dc, ArrayList<MercatorTextureTile> tiles) {
float[] previousColor = new float[4];
dc.getGL().glGetFloatv(GL.GL_CURRENT_COLOR, previousColor, 0);
dc.getGL().glColor3d(0, 1, 0);
for (MercatorTextureTile tile : tiles) {
((Cylinder) tile.getExtent(dc)).render(dc);
}
Cylinder c =
dc.getGlobe()
.computeBoundingCylinder(dc.getVerticalExaggeration(), this.levels.getSector());
dc.getGL().glColor3d(1, 1, 0);
c.render(dc);
dc.getGL().glColor4fv(previousColor, 0);
}
private boolean isTileVisible(DrawContext dc, MercatorTextureTile tile) {
// if (!(tile.getExtent(dc).intersects(dc.getView().getFrustumInModelCoordinates())
// && (dc.getVisibleSector() == null ||
// dc.getVisibleSector().intersects(tile.getSector()))))
// return false;
//
// Position eyePos = dc.getView().getEyePosition();
// LatLon centroid = tile.getSector().getCentroid();
// Angle d = LatLon.greatCircleDistance(eyePos.getLatLon(), centroid);
// if ((!tile.getLevelName().equals("0")) &&
// d.compareTo(tile.getSector().getDeltaLat().multiply(2.5)) == 1)
// return false;
//
// return true;
//
return tile.getExtent(dc).intersects(dc.getView().getFrustumInModelCoordinates())
&& (dc.getVisibleSector() == null || dc.getVisibleSector().intersects(tile.getSector()));
}