private static void CreateFaceLabel(Viewport3D myVP, Face f, TranslateTransform3D ttmove)
{
HalfEdge he = f.FindLongestEdge();
xyz p1 = he.Center();
xyz p2 = f.Measure(he, p1);
xyz v = p2 - p1;
double dist = v.magnitude();
xyz c = p1 + v / 2;
c += f.UnitNormal() * .001;
Point3D center = wpfmisc.fixPoint(c);
Vector3D over = wpfmisc.fixVector(he.UnitVector());
Vector3D up = wpfmisc.fixVector(he.GetInwardNormal());
double height;
if (dist <= 1)
{
height = dist / 3;
}
else if (dist < 10)
{
height = 1;
}
else
{
height = 2;
}
// TODO the following isn't a very pretty hack
if (f.name.Length * height > he.Length())
{
height = he.Length() / f.name.Length;
}
ModelVisual3D mv3d = wpfmisc.CreateTextLabel3D(f.name, Brushes.Black, false, height, center, over, up);
if (ttmove != null)
{
mv3d.Transform = ttmove;
}
myVP.Children.Add(mv3d);
}