public void OnViewportMouseDown(object sender, MouseButtonEventArgs args)
{
var pt = args.GetPosition(mainViewport);
switch (args.ChangedButton)
{
case MouseButton.Left:
m_transformMatrix.OnLBtnDown(pt); // rotate 3d model
break;
case MouseButton.Right:
m_transformMatrix.OnRBtnDown(pt); //drag 3d model
break;
case MouseButton.Middle:
m_transformMatrix.OnMBtnDown();
TransformChart();
break;
case MouseButton.XButton1:
case MouseButton.XButton2:
//m_selectRect.OnMouseDown(pt, mainViewport, m_nRectModelIndex);// select rect
break;
}
}