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Forums >> Revit Building >> Technical Support >> Revit 2014 Point Cloud Benefits/limitations?

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Fri, Apr 19, 2013 at 8:21:16 AM | Revit 2014 Point Cloud Benefits/limitations?

#1

Devonshire


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I just loaded Revit 2014 and had high hopes for better point cloud visibility, data density (less decimation) and speed.

  • The fly feature in Recap is a fluid, intuitive and very cool way to navigate, but Faro's scene has way more detail.
  • Even with the new RCP file extension for point clouds set to the 1 Pixel size I'm sadly seeing slightly LESS detail in Revit 2014 than 2013 with the PCP point cloud type.... The pixels look bigger (less resolution) and there may be more noise removal which ends up leaving more blank white spaces where one can't model what you can't see.

I was wondering if I'm missing something and what others are experiencing.

Thanks,

Zane


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Sat, May 4, 2013 at 9:00:55 AM | Revit 2014 Point Cloud Benefits/limitations?

#2

JRPcad


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I'm finding similar issues,

 

I seem to be getting less point density for some reason from the same exports (which to me seems very odd) also it's very inconsistant, I've ran a few tets from .E57 and pts (will try many more) some e57s load into recap all into Revit. strangely though intensity works on the ones that load into Recap but not in Revit, tried a few other files and intensity comes in at all max on pts conversions. I was amazed though that the rcp's after being created from e57s are around a mere 5kb when it's equivelent old pcg was 1GB - however this probably explains the point density.

 

I'm going to see if my directors can allocate me a bit of time to run tests on all file types to see what gives the best results,


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Sat, May 4, 2013 at 9:42:38 AM | Revit 2014 Point Cloud Benefits/limitations?

#3

Devonshire


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I did a shared screen with Kyle from Autodesk to review this issue.

He recommended doing an interesting trick that does help.

Change the view depth to be 3" or 4" above the floor and down a bit from the ceiling.  That eliminates some of the scattered noise in the image and the image did seem to sharpen up with more useful detail.

I'm still not seeing as much detail or color in the Revit version of the same point cloud in a 3D view compared to the same point cloud in Recap.  That's not supposed to be possible because it's the same image and the same point cloud engine.

Elmer Bol recommended using the default 2 Pixel resolution from Recap.

Kyle is downloading my point cloud and reviewing it.  More as this develops.

I have a Nvidia Quadro 4000 graphics card and 16 Gb of RAM running on Win7 x64.  I did notice that 32 Gb of RAM is recommended for the 2014 software....

I attached a screen shot of his screen that shows their office that was scanned with a Faro Scanner as well.

BTW: Scott Page (Berkeley, CA) has been doing my scans if you need help getting them done.  The scanners are insanely expensive to purchase the hardware in order to do it youself. 

http://www.scottpagedesign.com/

 

 

 

 



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Sat, May 4, 2013 at 12:15:53 PM | Revit 2014 Point Cloud Benefits/limitations?

#4

JRPcad


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Yeah my computer spec doesn't meet yours, I carve my cloud to pieces anyway to build as -builts, using a lot smaller slices than that so that I can define a proper direction (I don't use the automated stuff as it's shocking). I'll let you know how I get on with my tests.

 

Ignore my signature I currently work for Greenhatch who are one of the biggest Surveying companies in the UK, we scan a pretty high percentage of our buildings now even if the output only needs to be in 2D.

 

I'll run some tests next week with our scan team and let you know the outcome. we use a lot of Leica software and top of the range scanners (£100k+ per scanner) so if I can't get something decent into Revit 2014 I won't be impressed and will be sticking with 2013 till some things are patched lol.


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Mon, May 20, 2013 at 3:19:22 PM | Revit 2014 Point Cloud Benefits/limitations?

#5

JRPcad


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Okay I've done a little more testing and I think I've solved the resolution issue, well found a work around at least and the cause of the problem! As you'll see from the attached image I've managed to get the 2014 data matching closely to the 2013 in terms of point density.
 
One of my team recognised that the point pattern was very similar to an error that occured in Geomagic. very similar to how Revit has issues with things being too far from project base point so does geomagic. It turns out that even though I dropped the cloud very close to the project base point for some reason Revit 2014 must be still reading the old real world coordinates and sees it as if it is still 100s of miles from origin, which is what seems to be causing the resolution problems. Hence we went back into the original registered data in cyclone and made the project arbitrary (moved it close to 0,0,0), we then re-exported to .pts bought into Revit and the results are as per the attachment, loads better than before and deffinately possible to work with now!
 
And guess what, it even solved the intensity issue! For some reason it seems a bit jumpy while loading in but I'm just moaning for the sake of it now... I'm a very happy man Winking
 
Would be good to see things working without altering the native datas origin, but hey at least we have a work around now Winking


Edited on: Mon, May 20, 2013 at 10:25:57 AM

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Tue, May 21, 2013 at 6:58:39 PM | Revit 2014 Point Cloud Benefits/limitations?

#6

jfurutani


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Has anyone been able to print to PDF a sheet with the point cloud viewable in Revit 2014? I can do this with Revit 2013(.PCG) but not with the 2014 version (.RCP). 

 

Thanks,

Joseph Furutani


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Fri, May 24, 2013 at 1:00:13 PM | Revit 2014 Point Cloud Benefits/limitations?

#7

elichiasson


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Hi Joseph,

I just had the same issue of being tyring to print a sheet to PDF from Revit 2014 with point cloud data but not having any of it show up.

 

I found that if the view was set to wireframe, the point cloud doesn't print, despite being visible on screen. If the model display style is set to Hidden Line or above, the point cloud data prints as you would expect it to.

 

I hope your issue is resolved as easily as mine was (though it caused an afternoon of stress and frustration).

 

 

Eli


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