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Author Topic: Volume computation  (Read 6331 times)

Alterco

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Volume computation
« on: December 05, 2013, 04:07:52 PM »

Hi,

I am trying to estimate the volume of a mine gallery.
The mesh has bee scaled thanks several scale bars.
I have closed the holes with the close holes command.
then when I compute the volume, it gives a negative value.

I wonder if there is a problem or if I just can take the number as an estimation ?

Thank you in advance for your reply.

Regards,

AdrienA

PS : I use Photoscan 1.0 1748 (64bit)





Alexey Pasumansky

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Re: Volume computation
« Reply #1 on: December 05, 2013, 04:14:12 PM »
Hello AdrienA,

Negative value means than the surface normals are pointed inside the model. And it is a common situation for quarries or interior projects.
Best regards,
Alexey Pasumansky,
Agisoft LLC

Alterco

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Re: Volume computation
« Reply #2 on: December 05, 2013, 04:15:30 PM »

Thank you for your answer.

So, I can take the number as a positive value ?

Regards,

AdrienA

Alexey Pasumansky

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Re: Volume computation
« Reply #3 on: December 05, 2013, 04:19:22 PM »
Yes.
Best regards,
Alexey Pasumansky,
Agisoft LLC

Alterco

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Re: Volume computation
« Reply #4 on: December 05, 2013, 04:21:36 PM »

Thank you for your answer and your very powerful software.

AdrienA