Tank Volumes in 3DReshaper

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Kleine Tor
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Re: Tank Volumes in 3DReshaper

Post by Kleine Tor »

Hello, Matthew!
What device are You going to measure tank with?
I think that knowing this we'd recommend You something that fits.
Cheers.
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Re: Tank Volumes in 3DReshaper

Post by mattygreig »

Hey guys
Thanks for the info. Some great ideas, and methods. Plenty to think about now.
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Re: Tank Volumes in 3DReshaper

Post by Oatfedgoat »

Matt Young wrote:Generally we tend to solid model all the deadwood and use the volumes to calculate what needs to be removed.
Sounds like 21st century NIAs!
Includes, excludes, tennant added stairs, 1.5m restricted headroom... arrgh! Sorry, just had a horrible flashback.
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Re: Tank Volumes in 3DReshaper

Post by danielgadowski »

Oatfedgoat wrote:Sounds like 21st century NIAs!
Includes, excludes, tennant added stairs, 1.5m restricted headroom... arrgh! Sorry, just had a horrible flashback.
LOL i know what you are saying.. Had a go at these a good few years back... Not pleasant memories :)
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Re: Tank Volumes in 3DReshaper

Post by Oatfedgoat »

Not pleasent, but due to the nature of what they are used for, they pay well for those who do them.
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Re: Tank Volumes in 3DReshaper

Post by Phill »

Hey all, I know this is an old post but I have a few questions about these volumes you guys are calculating.

If you are using reshaper for doing this work and doing a tin, would not the fact that a tin cuts the chord between two points on its edges create a volume smaller than the actual tank capacity? See diagram below. Do you guys account for this using some other method?
1.jpg
At a 3mm between points spacing inside a 35m diameter tank that is 10m high you would need 122,169,444 points (appoximatly), and my understanding was reshaper fell over after about 5million or so (I am happy to be corrected here, I have not had much experience with reshaper), which would mean it would be subsampling the cloud down to makes it's tin, making this error larger.

nb.
I did some math after this post on this example 35Ø X 10m tank, and if the spacing is 3mm the volume of this difference is 0.00004m³ (i.e. not very much), and even with a spacing of 15mm (with 5million points used) it was still only 0.001m³.


Thanks

Phill
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