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3D Analyst: Multipatch volume

HarmenKampinga

Did someone already discover how to calculate the volume of a multipatch object?

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EricRice

Clayton's original suggestion is how you calculate the volume of a multipatch. Check out the Add Z Information tool.

http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00q90000005z000000.htm

Under Usage, you can see the properties that are available for each geometry type. Volume is present for multipatches. I just tested it and got the volume for my records.

If it isn't working for you, check to see if you have closed multipatches by running the Is Closed 3D tool.

Regards,

MicahCallough

Anyone solve this problem directly using the multipatch file?

JakubSisak

Did someone already discover how to calculate the volume of a multipatch object?

i am pretty this is not possible. Use TIN Difference to obtain volume between two TIN surfaces.

JakubSisak

i am pretty this is not possible. Use TIN Difference to obtain volume between two TIN surfaces.

JakubSisak

If your multipatches are closed we can calculate volume. Try the 3D Analyst Add Z Information tool.

Regards,

Clayton Crawford
ESRI Software Products

Really? Can you elaborate?

ClaytonCrawford

Something doesn't seem right if each CAD face ends up as a separate feature/row in the geodatabase. Maybe it has to do with how the CAD entity is modeled or how the CAD data was imported/loaded into the geodatabase. I would try to figure that out first.

Can you describe how the data is modeled in CAD and how it was imported/loaded int the geodatabase?

Regards, Clayton

HarmenKampinga

Thank you Clayton, that was very helpfull,

but I now have an other issue. When not solved, there will be volume calculation...

I have imported and converted a multipatch CAD drawing into a GeoDataBase. In my attribute table I have 3 circles and more than 35000 3dFaces... Testing on closed multipatch on the circles got a "yes", but all the faces don't. OK, I do understand that. But how to convert alle those single faces into one multipatch row? Is there tooling.

Should be a suggestion in the help of the tool "Is Closed 3D" or an option within the tooling!

Thanks in advance for your reply,
Best regards,
Harmen

ClaytonCrawford

If your multipatches are closed we can calculate volume. Try the 3D Analyst Add Z Information tool.

Regards,

Clayton Crawford
ESRI Software Products

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