private void EdgeFetch_KeyDown(object sender, KeyEventArgs e)
{
m_trackBall.OnKeyDown(e);
switch (e.KeyCode)
{
case Keys.Up:
case Keys.Down:
case Keys.Left:
case Keys.Right:
m_creationData.Creator.ElemGeomDic[m_activeElem].Rotation *= m_trackBall.Rotation;
pictureBoxPreview.Refresh();
break;
default: break;
}
}