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PowerPack 10: Unfold
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Tim Olson  
#1 Posted : Sunday, September 11, 2016 6:20:25 PM(UTC)
Tim Olson

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PowerPack 10 contains a new tool for flattening/unfolding developable surfaces.

https://youtu.be/gpXTYPN38eU

I'm not sure whether I should leave the ability to flatten any mesh in the final version which leaves the results to the designer to keep. Feedback appreciated.

Attached is a file with examples for you to experiment with the unfold tool and build 1303 (uploading tonight....).


Tim

Edited by user Sunday, September 11, 2016 7:48:30 PM(UTC)  | Reason: Not specified

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murray  
#2 Posted : Sunday, September 11, 2016 8:51:49 PM(UTC)
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It works really well with the examples you supplied, and it worked well with some random ruled surfaces that I created. But it failed when I tried it on cylindrical sections produced as fillets on solids, returning zero areas as the "after" results. I tried various methodologies like using the fillet surfaces' edges as profiles for ruled surfaces, but that didn't help, and I also tried subtracting patches from those ruled surfaces, which got a "doesn't appear to be a ruled surface" error.
By flattening, do you mean unfolding meshes as opposed to unrolling developable ruled surfaces? I'd like to see it stay, with improvement over what's there at the moment. It's not unfolding subD meshes ATM, only the control mesh, which can be worked around by exporting the subD as .obj and reimporting, then unfolding the import. You can always get a result from unfolding a mesh, when surfaces aren't strictly developable, mesh resolution determines the accuracy.

Edited by user Sunday, September 11, 2016 8:54:46 PM(UTC)  | Reason: Not specified
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Tim Olson  
#3 Posted : Monday, September 12, 2016 12:38:52 AM(UTC)
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Many thanks Murray for the feedback, this really helps!

Build 1303 is now ready for download. It has many improvements to the unfold from 1302 including some tolerance accumulation issues. Plus it now "fans" out from the selected facet.

If you could post any file that appears to be developable and fails that would be fantastic from 1303. Those should not fail. I will take a look at the fillet.

>>It's not unfolding subD meshes ATM
Ok will fix.

>>By flattening, do you mean unfolding meshes as opposed to unrolling developable ruled surfaces?
Looking at other products, they seem to use flatten and unroll for the same task of unrolling a developable surface. Rhino seems to use unroll in the same context we're using.

>>You can always get a result from unfolding a mesh, when surfaces aren't strictly developable, mesh resolution determines the accuracy.
Yes. The resulting facets may overlap depending on the mesh and where you selected the start facet.
Smoothly flowing quads produce some nice results.

Thanks Murray, much appreciated!

Tim

Edited by user Monday, September 12, 2016 12:40:10 AM(UTC)  | Reason: Not specified

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Jean-Francois Jacques  
#4 Posted : Tuesday, September 13, 2016 11:14:14 AM(UTC)
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Originally Posted by: Tim Olson Go to Quoted Post
PowerPack 10 contains a new tool for flattening/unfolding developable surfaces.

https://youtu.be/gpXTYPN38eU




Tim


Nice. A very welcome feature Tim.
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a.wieneke  
#5 Posted : Wednesday, October 19, 2016 10:41:42 AM(UTC)
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Hello,

i just bought ViaCad 10 inclusive the Powerpack, but i cannot find the unfold feature.
I looked :Powerpack> Meshtools> no 'unfold' like in the video.

Thank you, for your help

Andreas
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mitchb  
#6 Posted : Wednesday, October 19, 2016 3:27:04 PM(UTC)
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PowerPack > Draw > Unroll Surface

Mitch
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thanks 1 user thanked mitchb for this useful post.
a.wieneke on 10/20/2016(UTC)
a.wieneke  
#7 Posted : Thursday, October 20, 2016 2:24:22 PM(UTC)
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thank you,
unroll and unfold in different submenus :-) funny

is there a similar thing with the 'mesh to nurbs' tool ?
i think i bought the pro version of Powerpack, could not see an other one.
and if so, how can i upgrade ?

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Tim Olson  
#8 Posted : Thursday, October 20, 2016 3:15:55 PM(UTC)
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PowerPack Pro is only available from EvoSoft. It is not available from Encore. This gives us some more flexibility in the feature set of PowerPack Pro as well as how often we provide updates.

We're still putting some final touches on the ViaCAD Pro with PowerPack Pro build.

If you purchased PowerPack Pro 9, you will receive PowerPack Pro 10 free as part of your upgrade to ViaCAD 10 from EvoSoft.

If you purchased PowerPack 9/10 and interested in PowerPack Pro 10, EvoSoft has an upgrade path.

I'm very excited to get the update out to the community!

Tim
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a.wieneke  
#9 Posted : Friday, October 21, 2016 4:13:10 AM(UTC)
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hello Tim,

do you have a link for me to Evosoft. upgrade to Powerpack pro
i have problems to google for it.

Thank you
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rokoko  
#10 Posted : Friday, October 21, 2016 12:41:09 PM(UTC)
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thanks 1 user thanked rokoko for this useful post.
a.wieneke on 10/22/2016(UTC)
flatpack  
#11 Posted : Friday, March 10, 2017 7:10:24 PM(UTC)
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Just noticed this new feature and have been eagerly waiting for it. however I'm wondering if there's a way to unroll (I guess its not called unfold anymore?) the entire volume without having to individually click on each surface? Reason I ask, for more complex faces, one might have trouble easily ensuring every face is clicked on.

Also when I unroll multiple items, the resulting 2D geometry appears to all overlap at 0,0,0

Edited by user Friday, March 10, 2017 7:17:06 PM(UTC)  | Reason: Not specified

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