public override void OnMouseDown(MouseEventArgs mouseEvent)
{
base.OnMouseDown(mouseEvent);
if (trackballTumbleWidget.MouseCaptured)
{
if (trackballTumbleWidget.TransformState == TrackBallController.MouseDownType.Rotation)
{
trackballTumbleWidget.DrawRotationHelperCircle = true;
}
}
int volumeHitIndex;
Ray ray = trackballTumbleWidget.GetRayFromScreen(mouseEvent.Position);
IntersectInfo info;
if (FindInteractionVolumeHit(ray, out volumeHitIndex, out info))
{
MouseEvent3DArgs mouseEvent3D = new MouseEvent3DArgs(mouseEvent, ray, info);
volumeIndexWithMouseDown = volumeHitIndex;
interactionVolumes[volumeHitIndex].OnMouseDown(mouseEvent3D);
MouseDownOnInteractionVolume = true;
}
else
{
MouseDownOnInteractionVolume = false;
}
}
public Ray GetRay(double screenX, double screenY)
{
return(trackballTumbleWidget.GetRayFromScreen(new Vector2(screenX, screenY)));
}
