QGIS/python/plugins/processing/tests/testdata/expected/surface_vol_below.html

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<p>Analyzed file: /home/nyall/dev/QGIS/python/plugins/processing/tests/testdata/dem.tif (band 1)</p>
<p>Volume: -0.003222253543777008</p>
<p>Pixel count: 34600</p>
<p>Area: 0.0003459999999999508 deg2</p>
</body></html>
[needs-docs][processing] Port SAGA raster surface volume to native QGIS alg The SAGA version of this algorithm is of limited use in QGIS, because the volume calculated is embedded only in the SAGA terminal output. This prevents it being saved to a file, or reused within a model as an input to a later model step. It's also very user-unfriendly, because users must know to manually scan the algorithm log to find the SAGA output. Given that the maths here is trivial, this commit ports the algorithm across to be a native QGIS c++ algorithm. The algorithm duplicates the SAGA alg 1:1, but outputs the volume (and area) to either a HTML report, or a vector table. Additionally, the outputs are exported as numeric outputs from the algorithm, allowing them to be re-used within models. (It's also considerably faster, because it avoids the forced conversion to SAGA raster format) Fixes #8607 (properly, even though that report is closed) 2019-01-20 07:54:43 +10:00			`<html><head><meta http-equiv="Content-Type" content="text/html;charset=utf-8"/></head><body>`
			`<p>Analyzed file: /home/nyall/dev/QGIS/python/plugins/processing/tests/testdata/dem.tif (band 1)</p>`
			`<p>Volume: -0.003222253543777008</p>`
			`<p>Pixel count: 34600</p>`
			`<p>Area: 0.0003459999999999508 deg2</p>`
			`</body></html>`