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Resolution question

Resolution question

Postby Anti » Fri Jun 20, 2014 11:44 am

Hi, what does the value of Resolution mean? Is it points per inch or points per mm² or something else?
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Re: Resolution question

Postby ShadowTail » Fri Jun 20, 2014 1:33 pm

Resolution defines the average distance between two adjacent points of the mesh as far as I understand it.
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Re: Resolution question

Postby Anti » Fri Jun 20, 2014 1:48 pm

Hi ShadowTail,

yes, that's the definition I also know. But in this case it don't seem to make sense as the resolution gets better with increasing numbers (from 250 to max. 4000)
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Re: Resolution question

Postby MagWeb » Mon Jun 23, 2014 8:31 am

Sven explained that here:

About Fusion resolution:
You may wonder what the "Vertex Spacing" is. Unfortunately it's difficult to explain what the "Resolution" and the "Vertex Spacing" are.

Regard the Fusion result as a 3D point cloud. It is stored in a 3D cell grid, consisting of up to (Resolution*Resolution*Resolution) cells. The size of each cell is VertexSpacing*VertexSpacing*VertexSpacing mm.
In each cell, there can be only one 3D point. But the 3D point can be located anywhere within its cell!

So the 3D points to not have constant distances, in average it's "VertexSpacing" mm.
The resolution (number of points) is given by "Resolution", but you can't compare that to the regular resolution of e.g. a camera chip. The precision of each 3D point can be much higher than "VertexSpacing"!


http://forum.david-3d.com/viewtopic.php?f=16&t=5729&p=27286
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Re: Resolution question

Postby Anti » Mon Jun 23, 2014 10:05 am

Thank's a lot. That's a pity.
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