On 5/03/2015 11:03 AM, Dave Swarthout wrote:

>But what we really need is:

>paving_stone:geometry=
>paving_stone:concrete:grain_size=
>paving_stone:spectral_reflectance_curves=
>paving_stone:manufacturing_date=


+1

Now we're getting somewhere. I think too that we need a way to tag how the stone was formed, also color
paving_stone:genesis=igneous, metamorphic, sedimentary, artificial, etc.

British English ...  coloUr ... don't forget the U !

They will love us in Germany!

On Thu, Mar 5, 2015 at 3:10 AM, Martin Koppenhoefer <dieterdre...@gmail.com <mailto:dieterdre...@gmail.com>> wrote:


    2015-03-04 19:13 GMT+01:00 Bryce Nesbitt <bry...@obviously.com
    <mailto:bry...@obviously.com>>:

        But what we really need is:

        paving_stone:geometry=
        paving_stone:concrete:grain_size=
        paving_stone:spectral_reflectance_curves=
        paving_stone:manufacturing_date=




    +1

    and paving_stone:bevel_variance



Really need not to over look the essential non-visible characteristics!

Surface hardness http://en.wikipedia.org/wiki/Vickers_hardness_test .. to judge ware rates.

And there must be some compression test to determine the weight carrying capabilities ..


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