Dear Professor,

Thanks for your competence and your work in RSAGA and Rypgeo. This packages
are very useful and interesting.

I am testing different geoprocessing code in RSAGA, SAGA, Phyton and Rypgeo
to see the results, but I noticed a singular situation. I am using this code
to create SLOPE and ASPECT with DEM in RSAGA and see the difference in
ARCGIS geoprocessing

rsaga.slope("DEM","SLOPErad")
# convert to slope in percent:
rsaga.grid.calculus("SLOPErad","SLOPE", formula="100*tan(a)")
rsaga.sgrd.to.esri("SLOPE", prec = 4)
rsaga.aspect("DEM","ASPECT")
rsaga.sgrd.to.esri("ASPECT", prec= 4)

but there are some difference when I convert the ASPECT.sgrd in ASCII file.
ex

ASPECT.sgrd: min value=  0.020869 max value =  360.00001
(the same Value range I have in SAGA GIS or in ARCGIS)

ASPECT.asc: min value= 0.0004 max value= 6.2832

Thanks Again

Gianni

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