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Simplify raster sources by working with a single operation

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This commit is contained in:
Tim Schaub
2015-08-03 09:31:17 -06:00
parent f2f5cd2630
commit 860fdabd76
9 changed files with 138 additions and 113 deletions
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4
examples/raster.html
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@@ -12,8 +12,8 @@ docs: >
</p>
<p>
In this case, a single tiled source of imagery is used as input.
For each pixel, the Triangular Greenness Index
(<a href="http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=2161&context=usdaarsfacpub">TGI</a>)
For each pixel, the Vegetaion Greenness Index
(<a href="http://www.tandfonline.com/doi/abs/10.1080/10106040108542184#.Vb90ITBViko">VGI</a>)
is calculated from the input pixels. A second operation colors
those pixels based on a threshold value (values above the
threshold are green and those below are transparent).