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The distorted "Parallel Curve" controlled by Law?

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cforall

Automotive
Mar 20, 2012
17
The Law definition, whose reference is the y axis:
the_law_definition.jpg


The curve before(the brown one) and after the "parallel curve with law" operation:
the_parallel_curve.jpg


Zoom in on a little portion of the paralleled curve: ( you can see the distorted fillets )
the_magnified_parallel_curve.jpg


I will appreciate any explanations you could give!
 
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Which release and could you upload the model?
 
I will upload the part Monday since its on company's desktop. The part was created by R21SP3, a pretty new release, is there any chance for you to check it?

btw: May I know how to insert images in the post, anything wrong about this format:
?
 
I used law & parallel curve in the past and I found that sometime curvature is somewhat not what I expected. so I worked at a dif. scale and I could see some change. The trick is to find the right ratio.
 
Sorry to say but I don't have a good solution... I turned on the "x parameter on definition" option in the law feature and removed the curvature issues but the aspect ratio looks weird.
 
I have got a feature of "Parallel Curve" of R17 version and I added it directly to the R21 part by copy 'n' paste, then I changed its law and input curve (with upgrading it) like what I did to the one of R21 version, the result turned out unbelievable perfect!

Why did Dassault changed the algorithm of "Parallel Curve" in this way?

I will post the related part if anyone here interested.
 
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