internal void RefreshScreenCoordinates(HTCoordS sOrigin, HTCoordS sMax)
{
a.ProjectionEtoS(za, sOrigin, sMax);
b.ProjectionEtoS(zb, sOrigin, sMax);
c.ProjectionEtoS(zc, sOrigin, sMax);
}
internal virtual void RefreshScreenCoordinates(HTCoordS sOrigin, HTCoordS sMax)
{
zs.ProjectionEtoS(ze, sOrigin, sMax);
}