Hi Anna, your results are impressive. I have tested the r3.flow module with artificial groundwater flow data and Paraview (see the attached script that generates the data). Your flowpaths are looking exactly like the ones generated with the VTK streamtracer, see the attached screenshots[1,2].
The red lines are the VTK streamtracer paths[1], the white lines are the r3.flow downstream and upstream paths[2]. I have generated 300 sample points with v.random near the location of the Paraview streamtracer sample line (see attached script) to generate similar path lines. Great work indeed, Best regards Soeren [1] https://www-pool.math.tu-berlin.de/~soeren/grass/Paraview_r3_flow_streamtracer.png [2] https://www-pool.math.tu-berlin.de/~soeren/grass/Paraview_r3_flow_streams.png 2014-07-11 23:22 GMT+02:00 Anna Petrášová <[email protected]>: > Hi, > > 1. What did you get done this week: > I have now a working C implementation of the r3.flow module with > functionality limited to generating flow lines [2]. > > 2. What do you plan on doing next week? > I will continue with the C implementation (flow accumulation, gradient > computation) > > 3. Are you blocked on anything? > No. > > Anna > > [1] > http://trac.osgeo.org/grass/wiki/GSoC/2014/ImplementationOf3DRasterFlowLine > [2] http://trac.osgeo.org/grass/browser/grass-addons/grass7/raster3d/r3.flow > > _______________________________________________ > grass-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-dev
generate_flowline_data.sh
Description: Bourne shell script
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