///<summary> This gets called when when the user runs this command.</summary>
public override IRhinoCommand.result RunCommand(IRhinoCommandContext context)
{
MRhinoGetObject go = new MRhinoGetObject();
go.SetCommandPrompt("Select surface");
go.SetGeometryFilter(IRhinoGetObject.GEOMETRY_TYPE_FILTER.surface_object);
go.EnableSubObjectSelect(false);
go.GetObjects(1, 1);
if (go.CommandResult() != IRhinoCommand.result.success)
{
return(go.CommandResult());
}
IOnSurface srf = go.Object(0).Surface();
if (null == srf)
{
return(IRhinoCommand.result.failure);
}
IOnNurbsSurface ns = srf.NurbsSurface();
if (null == ns)
{
RhUtil.RhinoApp().Print("Not a NURBS surface.\n");
return(IRhinoCommand.result.nothing);
}
On3dPoint cv = new On3dPoint();
string str = string.Empty;
for (int u = 0; u < ns.CVCount(0); u++)
{
for (int v = 0; v < ns.CVCount(1); v++)
{
if (ns.GetCV(u, v, ref cv))
{
str = string.Empty;
RhUtil.RhinoFormatPoint(cv, ref str);
RhUtil.RhinoApp().Print(string.Format("CV({0},{1}) = {2}\n", u, v, str));
}
}
}
return(IRhinoCommand.result.success);
}
///<summary> This gets called when when the user runs this command.</summary>
public override IRhinoCommand.result RunCommand(IRhinoCommandContext context)
{
MRhinoGetObject go = new MRhinoGetObject();
go.SetCommandPrompt("Select curve");
go.SetGeometryFilter(IRhinoGetObject.GEOMETRY_TYPE_FILTER.curve_object);
go.EnableSubObjectSelect(false);
go.GetObjects(1, 1);
if (go.CommandResult() != IRhinoCommand.result.success)
{
return(go.CommandResult());
}
IOnCurve curve = go.Object(0).Curve();
if (null == curve)
{
return(IRhinoCommand.result.failure);
}
// Several types of OnCurve objects can have the form of a polyline,
// including OnLineCurve, a degree 1 OnNurbsCurve, ON_PolylineCurve,
// and ON_PolyCurve (whose segments form a polyline). OnCurve.IsPolyline
// tests a curve to see if it can be represented as a polyline.
ArrayOn3dPoint points = new ArrayOn3dPoint(64);
int point_count = curve.IsPolyline(points);
if (point_count > 0)
{
string point_str = string.Empty;
for (int i = 0; i < point_count; i++)
{
point_str = string.Empty;
RhUtil.RhinoFormatPoint(points[i], ref point_str);
RhUtil.RhinoApp().Print(string.Format("Point {0} = {1}\n", i, point_str));
}
}
return(IRhinoCommand.result.success);
}