Defect: Reverse of spline with 5 control points

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Defect: Reverse of spline with 5 control points

Postby swissguest » Sat Nov 02, 2013 12:23 pm

The reverse function does not produce correct results for splines with 5 control points - the shape is screwed up since some points are misplaced. Once it happened, the spline cannot be selected any longer.

The same reverse function does work correctly for splines with 4 control points.

Version: 3.4.2.0 (3.4.2)
Build Date: Oct 25 2013
swissguest
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Re: Defect: Reverse of spline with 5 control points

Postby andrew » Sat Nov 02, 2013 12:39 pm

Thanks for your report
Can you please indicate what platform you are on (Windows, Mac, Linux, ...)?
I've briefly tried to reproduce this problem but cannot see any defects. It would also be helpful, if you could attach a drawing file to demonstrate the problem.
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andrew
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Re: Defect: Reverse of spline with 5 control points

Postby swissguest » Sat Nov 02, 2013 12:41 pm

Ah, sorry, it is on Ubuntu Linux 12.04 64 bit. Will post an example asap.
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Re: Defect: Reverse of spline with 5 control points

Postby swissguest » Sat Nov 02, 2013 12:56 pm

Please find the demo files attached. I removed all other entities from the project, so only some splines with 5 CPs remain. I included screenshots - in case that you cannot reproduce the reported behavior in the DXFs.
Attachments
qcad-defect.zip
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Re: Defect: Reverse of spline with 5 control points

Postby andrew » Sat Nov 02, 2013 1:25 pm

Thanks. I've moved this to our bug tracker at:
http://www.qcad.org/bugtracker/index.ph ... ask_id=965
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Re: Defect: Reverse of spline with 5 control points

Postby hungerburg » Sat Nov 02, 2013 1:33 pm

The splines in your file are of 2nd degree. In my version of qCAD I can only draw splines of this type (splinefit SL) of 3rd degree. Changing the degrees of freedom to 3 in the properties editor makes yours reversible too.
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Re: Defect: Reverse of spline with 5 control points

Postby swissguest » Sun Nov 03, 2013 2:05 am

Hungerburg, thanks for the suggestion, that works for me in the meantime, and saves the manual reversing procedure.
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