Use of Start and End Parameters for IfcSweptDiskSolid

[CJAndrew84]

Has anyone tried to use Start and End Parameter for IfcSweptDiskSolid. I am using it on an IfcIndexPolycurve to represent a curved pipe. But dont want the Solid along its full length.

IfcSweptDiskSolid endrockersec = new IfcSweptDiskSolid(polyline, (Convert.ToDouble(pipedia) * 1.2) / 2, Convert.ToDouble(pipedia) / 2); sec.StartParam = endrockerstart; sec.EndParam = endrockerend;

endrockerstart and endrockerend are both doubles.

Image below shows that the solid runs the full length of the string.

The Data is written to the IFC file but doesnt seem to change the display.

Example of it working on a Straight pipe:

But I used IfcLine and IfcTrimmedCurve to create the "sections", which doesn't work for an IndexedPolyCurve.

Do we think this could be an issue with the viewer?