Compare two point cloud

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yangyuanyuan
Posts: 9
Joined: Mon Oct 15, 2012 8:35 am

Compare two point cloud

Post by yangyuanyuan »

Hi
I am a beginner,and I have two point cloud about ladsides.
I want to ask you how can I compare it? so that generating variable quantity.
Thank you very much!
daniel
Site Admin
Posts: 7332
Joined: Wed Oct 13, 2010 7:34 am
Location: Grenoble, France
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Re: Compare two point cloud

Post by daniel »

Hi,

I've updated the 'How to compare two 3D entities' tutorial on the wiki to a more generic version:
How to compare two 3D entities http://www.cloudcompare.org/doc/wiki/in ... D_entities
Daniel, CloudCompare admin
yangyuanyuan
Posts: 9
Joined: Mon Oct 15, 2012 8:35 am

Re: Compare two point cloud

Post by yangyuanyuan »

Hi
When I input the file (ASCII.txt) to the CloudCompare, It will get an error: Reading error(no access right?). How can I treat it?
Thanks!
yangyuanyuan
daniel
Site Admin
Posts: 7332
Joined: Wed Oct 13, 2010 7:34 am
Location: Grenoble, France
Contact:

Re: Compare two point cloud

Post by daniel »

Is there any chinese character in the file name or file path?

Otherwise it may be because another program is using the file (in a quite exclusive way!).
Daniel, CloudCompare admin
yangyuanyuan
Posts: 9
Joined: Mon Oct 15, 2012 8:35 am

Re: Compare two point cloud

Post by yangyuanyuan »

Hi
I want to ask you how to get the compared value from the computing distance? The other words:What's the meaning of the computing distance value?
The two point cloud from the same TLS.
Thanks!
yangyuanyuan
daniel
Site Admin
Posts: 7332
Joined: Wed Oct 13, 2010 7:34 am
Location: Grenoble, France
Contact:

Re: Compare two point cloud

Post by daniel »

Hi,

the distances are by default the distance from each point to the nearest point (or triangle if your are comparing your cloud to a mesh).

Here are the details: http://www.cloudcompare.org/doc/wiki/in ... omputation
Daniel, CloudCompare admin
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