Cluster to Cluster

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LEIGH DICKSON
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Cluster to Cluster

Post by LEIGH DICKSON »

Hello Wizards.

I have scanned a warehouse and traversed around the perimeter internally using spheres.
Typically one of my scans is showing 2 out of 3 spheres orange, not green.
So I put the scans into two clusters.
Both clusters have placed scans fine. But I can't get the two clusters together.

I have named the spheres in the two scans that I'm trying to place and tried place by manual names but I get the error message, shown in picture...

How can I get these two clusters together?

Thanks in advance.
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LEIGH DICKSON
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Re: Cluster to Cluster

Post by LEIGH DICKSON »

Sorry, I'm using Scene 5.3
LEIGH DICKSON
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Re: Cluster to Cluster

Post by LEIGH DICKSON »

I think I've done it....

I went to Operations > Corres > Force by manual names.
Then,
Registration > place scans - with manual names.

It seems to have worked although I was sure I've already tried this...
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Re: Cluster to Cluster

Post by blazaj »

Leigh,
it's caused by bad distribution of targets IMO. Either try to lower target quality in place scans dialog or use an extra reference plane between overlapping scans in each cluster (wall, ceiling etc.) or try to run top-view + c2c registration on the clusters. I'd go for c2c as there will be plenty "c2c friendly features" in a warehouse that should provide for tight registration.
Hope this helps
Jiri
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Re: Cluster to Cluster

Post by blazaj »

Am I being too slow typing ? Glad to hear you found a solution.
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Re: Cluster to Cluster

Post by LEIGH DICKSON »

blazaj wrote:Leigh,
it's caused by bad distribution of targets IMO. Either try to lower target quality in place scans dialog or use an extra reference plane between overlapping scans in each cluster (wall, ceiling etc.) or try to run top-view + c2c registration on the clusters. I'd go for c2c as there will be plenty "c2c friendly features" in a warehouse that should provide for tight registration.
Hope this helps
Jiri
Thanks for your reply Jiri.

I had tried all of your ideas but non of them worked. The warehouse was full of boxes so I think it got confused with c2c as it placed scans everywhere - but where they should have been.
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Re: Cluster to Cluster

Post by blazaj »

Sometimes when top view doesn't work, it helps to move clusters or scans manually to its rough corresponding position and then run c2c only. Keep in mind that clusters you want to register by c2c must be locked to avoid losing registration between scans inside those clusters.
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Re: Cluster to Cluster

Post by john-newbegin »

I agree with try the top view and then cloud to cloud also. If that doesnt work, I do the same thing in correspondence view move them close together eyeball it and then do cloud to cloud and change the settings to maximum iterations 50, and maximum search distance to 36 inches and then do the same but push it down to 12 inches, and experiment with 6 inches and then 1 inch.. one of them is usually so close its like .00258 off and thats close enough for what I am doing, as far as engineering, as builts.

Also have you tried not using spheres, if you have boxes all over you could do without spheres and and use preprocess and let it detect corner points and it should find the similiar patterns in the boxes and corners, maybe?

some times it works great sometimes not so much..
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