Test Viewshed Analysis against other Viewshed Implementations

[yiftachn]

Has anyone tested the correctness of the viewshed analysis output?
Assuming ESRI's ArcGIS as the ground truth, as it is the most popular, paid, solid and established viewshed product,
Does xarray-spatial viewshed returns identical output?

[ianthomas23]

Personally I don't trust any mathematical software unless I can verify that the maths is implemented correctly.

It you want to compare the two, feel free to do so and report your results here if you wish.

[brendancol]

@yiftachn We may have a test to check against GDAL's viewshed which was the inspiration for this tool. @davidnfox I think we should also test against Esri just to know how different the two are.

[yiftachn]

Great, im following

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On Sat, Apr 30, 2022, 02:43 Brendan Collins ***@***.***> wrote: @yiftachn <https://github.com/yiftachn> We may have a test to check against GDAL's viewshed which was the inspiration for this tool. @davidnfox <https://github.com/davidnfox> I think we should also test against Esri just to know how different the two are. — Reply to this email directly, view it on GitHub <#669 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AJCIP3TE2VYUVQ2YKR6RL7LVHRXZZANCNFSM5PCBXBBA> . You are receiving this because you were mentioned.Message ID: ***@***.***>