private void updateLocalFrameTransforms()
{
_localFrame.Transforms.Clear();
Transform tScale = Rhino.Geometry.Transform.Scale(Point3d.Origin, DrawUtil.ScaleFactorLocalFrame);
foreach (BrepFace bf in Value.Faces)
{
//int n_seg_u = Math.Max(1, (int)(bf.Domain(0).Length * DrawUtil.DensityFactorLocalFrame));
//int n_seg_v = Math.Max(1, (int)(bf.Domain(1).Length * DrawUtil.DensityFactorLocalFrame));
int n_seg_u = Math.Max(1, (int)(bf.IsoCurve(0, 0).GetLength() * DrawUtil.DensityFactorLocalFrame));
int n_seg_v = Math.Max(1, (int)(bf.IsoCurve(1, 0).GetLength() * DrawUtil.DensityFactorLocalFrame));
for (int i = 0; i <= n_seg_v; i++)
{
for (int j = 0; j <= n_seg_u; j++)
{
double para_u = bf.Domain(0).ParameterAt((double)j / (double)n_seg_u);
double para_v = bf.Domain(1).ParameterAt((double)i / (double)n_seg_v);
if (DrawUtil.DensityFactorLocalFrame < 0.001)
{
para_u = bf.Domain(0).ParameterAt(0.5);
para_v = bf.Domain(1).ParameterAt(0.5);
}
Point3d ap = bf.PointAt(para_u, para_v);
Transform t = TransformUtils.GetGlobalTransformArea(ap, bf, DirectionLocalX);
if (FlipZ)
{
t = t * Rhino.Geometry.Transform.Rotation(Math.PI, Vector3d.XAxis, Point3d.Origin);
}
Transform tTranslate = Rhino.Geometry.Transform.Translation(new Vector3d(ap));
_localFrame.Transforms.Add(tTranslate * t * tScale);
}
}
}
}