private void toolStripMenuItem1_Click(object sender, EventArgs e)
{
var lp = EditGraph.GetPoint(MX, MY);
var nl = new GraphLight();
nl.X = lp.X;
nl.Y = lp.Y;
nl.Z = 1.0f;
if (LightIcon == null)
{
Environment.Exit(1);
}
nl.ImgFrame = LightIcon;
nl.W = 32;
nl.H = 32;
EditGraph.Add(nl, true);
SyncUI();
}