Shown is the multiple curve polysurface and a corrected one,
the goal is to export boot as an
IGS file , with only three curves the boot will import into the footwear cad as one solid surface,
if anyone knows how to do this or can figure it out please help me so I can understand how to do it, thank you
3 curves isn’t sufficient to properly define that boot. You can probably get a boot-like shape with 3 curves, but it won’t get close to what you have there. Not sure if I understood the question properly. Also, upload files.
Edit: Hmm you’re probably asking about having only 3 isocurves?
Ftzuk,
yes Im pretty sure 3 curves works and is the only way it will work because with each extra curve over 3 an extra surface will also appear in the shoe cad
Here are 2 files
first is rhino 8, this was an obj modeled in blender that was converted into a polysurface,
the second file is a boot that was made from scratch, this file exports as a single surface igs file, it does work fine in the cad
The boots 3 curves are not showing but I am sure there are only the three curves
1 boot.3dm (489.3 KB)
1 surface boot_iges.3dm (4.1 MB)
@BrianJ
please see my post and let me know if you can help or if you can recommend anyone who can, thanks
Hi @vshyman002 ,
I’m not sure I understand what you are trying to do and why but my best guess is that you need to model a single surface to import to some CAD app that only takes single surfaces. This form can be modeled as a single surface using a network of curves that run perpendicular to each other as shown. I used DupEdge and ExtractIsocurve on your example single surface and then ran NetworkSrf on those curves. You can then use RemoveControlPoint or Rebuild to further refine the form of this one surface. You can’t get the curvature leading to the toe if you don’t have more than three curves.
If you don’t have a single surface to extract isocurves from, you’d have to project planar curves to the model from orthographic views and/or use the Contour command to generate them in the two directions prior to NetworkSrf.
I hope that helps.
Thanks for the quick reply Brian!
this file you opened was a boot made in rhino from scratch that works fine in my shoe cad when exported as igs
it is this igs that has so many curves in it that in the shoe cad there are many separate surfaces, this is an igs exported from the file 1 boot.3dm - attachment
this is the same IGS file I have an image of at the to pof the post
is there a way you can think of turn those many curves into just 3 curves?
only then when I project curves onto the igs boot in the shoe cad program do things work correctly
thank you
I’m sorry, I’m still having trouble understanding your issue and what you want exactly. The single surface boot file is a single surface with three edges in total but could not have been modeled with only three curves.
It was modeled with many curves. But in order for it to function as a single surface in the shoe cad it should export as igs with only those three curves shown in that image
If you mean this image
from your post above, I am not sure what you mean still. There are edges but I don’t see any curves in the file you posted. If I export the model as igs it is also a single surface with no curves. Sorry I’m not much help here, maybe someone else will understand your question. Maybe the issue is due to something in the application you are opening the igs file with too?