[cgma-dev] Create spline curve bug

[Jane Hu]

Hi, Boyd:

The point list should include only 3 points without duplicates. If you
called GeometryModifyTool::make_RefEdge(), you need to pass in start and
end vertex besides the mid-point as the list member. Can you double check
on this?

Thanks.

jane

On Mon, Jan 9, 2012 at 2:29 PM, Boyd Tidwell <bktidwell373 at gmail.com> wrote:

> Jane,
>
>  After applying your changes I now get an exception raised.  Here is
> the detail,
>
>
> In OCCModifyEngine.cpp, my line 426 (Curve* OCCModifyEngine::make_Curve)
>
>  //make curve according to the curve type.
>  if(curve_type == SPLINE_CURVE_TYPE)
>  {
>    GeomAPI_Interpolate spline(points, CUBIT_FALSE, TOL);  <-- this call
>
> which calls:
>
> In GeomAPI_Interpolate.cxx:
>
> GeomAPI_Interpolate::GeomAPI_Interpolate
>   (const Handle_TColgp_HArray1OfPnt& PointsPtr,
>    const Standard_Boolean            PeriodicFlag,
>    const Standard_Real               Tolerance) :
> myTolerance(Tolerance),
> myPoints(PointsPtr),
> myIsDone(Standard_False),
> myPeriodic(PeriodicFlag),
> myTangentRequest(Standard_False)
> {
>  Standard_Integer ii ;
>  Standard_Boolean result =
>   CheckPoints(PointsPtr->Array1(),
>               Tolerance) ;
>  myTangents =
>     new TColgp_HArray1OfVec(myPoints->Lower(),
>                              myPoints->Upper()) ;
>  myTangentFlags =
>      new TColStd_HArray1OfBoolean(myPoints->Lower(),
>                                   myPoints->Upper()) ;
>
>  if (!result) {
>   Standard_ConstructionError::Raise();  <----- hits here
>   }
>
> The "Tolerance" passed in is 9.9999999999999995e-008.
> The "points" variable contains 5 points:
>   2 with value 0,0,0
>   2 with value 1,0,1
>   1 with value 2,0,0
>
>  and, of course, "result" is zero.
>
> Hope this helps.
>
>  -Boyd
>
>
>
>
>
> >Hi, Boyd
>
> >This has been confirmed and fixed in most recent cgm. Thanks.
>
> >Jane
>
> On Thu, Dec 22, 2011 at 11:23 AM, Boyd Tidwell <boyd at csimsoft.com>
> wrote:
>
> > Jane,
> >
> >  The following:
> >
> >    create vertex 0 0 0
> >    create vertex 1 0 1
> >    create vertex 2 0 0
> >    create curve vertex 1 2 3 spline
> >
> > should create a curve that includes all three vertices. It does so in
> > Cubit with the Acis engine but with OCC, the middle vertex (3) gets left
> > out.  I looked a bit into the code with debug but I didn't come close to
> > having an idea what the problem may be.
> >
> > Thanks,
> >
> >   - Boyd
> >
>
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