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Originally Posted by gap
Oh, amazing 
Tha's exactly the scale we need, with the Terrain.act palette applied to it. You can replace each shade of blue on it with a grey value going from 0 to 47 |
Quote:
Originally Posted by gap
Out of curiosity: do the first two values both correspond to -17 m?
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I think so, but first value should not be used, as it can take blue or brown color, depending on the map scale...
Quote:
Originally Posted by gap
2- sure we can convert that colour map into a grey-scale image, but then grey values wouldn't have any relation with depths.
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Except if we "rescale" the SH3 map picture in order to be linear.
Quote:
Originally Posted by gap
It would be better starting from a greyscale haight map. I have read on the web that, though a bit complicated, extracting height data from Google Earth is all but impossible.
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That would be amazing !