private void updateLocalFrameTransforms()
{
_localFrame.Transforms.Clear();
var dz = DirectionLocalZ.IsTiny() ? -1 * Vector3d.ZAxis : DirectionLocalZ;
if (DrawUtil.DensityFactorLocalFrame < 0.001)
{
double p = Value.Domain.ParameterAt(0.5);
Point3d pMid = Value.PointAt(p);
Vector3d tMid = Value.TangentAt(p);
Transform tScale = Rhino.Geometry.Transform.Scale(Point3d.Origin, DrawUtil.ScaleFactorLocalFrame);
Transform tOri = TransformUtils.GetGlobalTransformLine(tMid, dz);
Transform tTrans = Rhino.Geometry.Transform.Translation(new Vector3d(pMid));
_localFrame.Transforms.Add(tTrans * tOri * tScale);
}
else
{
_localFrame.Transforms.AddRange(DrawUtil.GetCurveTransforms(Value, true, dz, null, DrawUtil.ScaleFactorLocalFrame, DrawUtil.DensityFactorLocalFrame));
}
}