UN ROLLING - CONE DATA

Deformation Analysis Software for 3D Point Cloud Data eg CloudCompare
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NOVAMECH
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UN ROLLING - CONE DATA

Post by NOVAMECH » Fri Jan 06, 2017 4:01 am

Can someone please, suggest how I might go about UN ROLLING a CONE

My project is to un-roll a cone at the bottom of a 18 meter tall Cyclone Device. I have tried Cloud Compare and Phil Nixon's - UNFURL app. with no luck.
I need to un-roll this and produce a report showing total area numerically above and below spec. I can do this with ease within PolyWorks once I have the CONE Developed out on to a flat plane.
Capture2.PNG
Cloud Compare - CC Forum informs me that the CONE development does not work correctly at present.
Capture.PNG
UnFURLed Data from Phil Nixion's app - perhaps I have the orientation incorrect?
Capture5.PNG
Capture3.PNG
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Re: UN ROLLING - CONE DATA

Post by danielgm » Fri Jan 06, 2017 10:54 am

Not sure what is the date of the forum message you refer to ;). Anyway if there's a bug we can always fix it :D

How far are you from what you expect?
Daniel
CloudCompare admin
http://www.cloudcompare.org/

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Re: UN ROLLING - CONE DATA

Post by TommyMaddox » Fri Jan 06, 2017 7:31 pm

Maybe consider modeling the conical tank in 3D, and then fitting the pointcloud to it, and generating the 3D PDF deviation analysis report in Geomagic Qualify/Control/Verify (Whatever they're calling it these days).

The report will give you exactly what you're asking for without having to unfurl the surface or pointcloud for planar analysis.

I may be able to send you a sample report, I did some academic statistic analysis work with it a couple years back.

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Re: UN ROLLING - CONE DATA

Post by NOVAMECH » Fri Jan 06, 2017 11:19 pm

Hi Guys - Just to be clear I'm looking to - apply a 'conical' projection.
As per this image below.
Any help would be greatly appreciated - Thanks in advance
Unroll a cylinder.JPG
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Re: UN ROLLING - CONE DATA

Post by NOVAMECH » Thu Jan 12, 2017 12:07 am

Anyone have any - Ideas on this, now everyone is back to work?

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Re: UN ROLLING - CONE DATA

Post by IngSayyad » Thu Jan 12, 2017 9:25 am

I don't understand why you're not applying the solution provided in image.
Anyhow, a working solution for the programmers (if you don't want to use open source solution or commercial solution)
1-write your own solution for 'conical projection'
or
2- cut your object in 10-20 cm multiple pieces and apply cylindrical projection , you can again use open source solution for that and combine these pieces.
Dr.-Ing. Shahzad Sayyad

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