internal Rayd CastFromCamera(GraphicsDevice graphicsDevice, Vector2 mouseVector)
{
Matrixd worldd = Matrixd.CreateRotationZ(-cameraRotX) * Matrixd.CreateRotationX(cameraRotY);
double distance = 9 * Math.Pow(0.5, cameraZoom);
Matrixd viewd = CameraMatrixManager.GetWorldViewd(distance);
Matrixd projectiond = CameraMatrixManager.GetWorldProjectiond(distance, graphicsDevice.Viewport.AspectRatio);
return(Rayd.CastFromCamera(graphicsDevice, mouseVector.X, mouseVector.Y, projectiond, viewd, worldd));
}
// yup, it returns lat/long only in the range you'd expect
internal Vector3d GetLatLongOfCoord(GraphicsDevice graphicsDevice, double x, double y)
{
Matrixd worldd = Matrixd.CreateRotationZ(-cameraRotX) * Matrixd.CreateRotationX(cameraRotY);
double distance = 9 * Math.Pow(0.5, cameraZoom);
Matrixd viewd = CameraMatrixManager.GetWorldViewd(distance);
Matrixd projectiond = CameraMatrixManager.GetWorldProjectiond(distance, graphicsDevice.Viewport.AspectRatio);
Rayd ray = Rayd.CastFromCamera(graphicsDevice, x, y, projectiond, viewd, worldd);
Vector3d intersection = ray.IntersectionSphere(new Vector3d(0, 0, 0), 1); // angle 0
if (intersection == null)
{
return(null);
}
return(ToLatLong(intersection));
}
