Add sample risk maps for website testing

[amyjsdavis]

@amyjsdavis will add Geotiffs of risk maps to GitHub for website testing

[niconoe]

@amyjsdavis : perfect, just ping men when you have one or two sample files so I'll build a realistic (for the content, but also with regards to technicalities) prototype.

[amyjsdavis]

@niconoe: here are some samples as you requested. First two GeoTiffs (with the spatial data embedded in the file):
sample.zip

and here are the corresponding PNGs:

Let me know how they work out. Thanks!

[niconoe]

@amyjsdavis: I now have a prototype able to display them on a Leaflet-based map (without any server-side component), as discussed with @peterdesmet.

I have a few questions for you:

• would you be able to create GeoTiff files using the standard EPSG4326 projection? The tool I used was unable to interpret your custom projection, but it worked fine after I converted them to EPSG4326 with GDAL (gdalwarp -t_srs EPSG:4326 be_3190653_rcp26.tif be_3190653_rcp26.4326.tif). Alternatively, we could do the conversion later, before storing them on the server (but I have no idea of the data flow at this point, so I'm not sure what's possible).

• is the scale (range between the lowest and the highest value, and the mapping between a value and a displayed color) the same for all species and geotiff files, or should that be dynamic?

• @peterdesmet: the prototype is quite rough and basic, let's sit together soon to have a look so I can add a few more features and make it more realistic.

[amyjsdavis]

Thanks Nicolas, seeing the prototype is exciting! The images were supposed to be ETRS89 LAEA (which is a standard projection for Europe as my models are done at the European scale), but they got exported with a slightly different datum than WGS 84. If you prefer images to be in EPSG4326, yes I can provide that tomorrow. EPSG436 is a spatial reference/coordinate system (lat/long), not a projection, which is relevant when you are doing any kind of spatial analysis work at large spatial scales (e.g. Europe). For all the species and geotiff files, the scale will always bounded by 0 as the lowest possible risk and 1 as the highest possible risk value, but these values are very rare so you rarely will see them. Ideally the images should be depicted as heat maps as shown in the PNGs.

…

On Tue, Feb 18, 2020 at 3:22 PM Nicolas Noé ***@***.***> wrote: @amyjsdavis <https://github.com/amyjsdavis>: I now have a prototype able to display them on a Leaflet-based map (without any server-side component), as discussed with @peterdesmet <https://github.com/peterdesmet>. [image: Screenshot 2020-02-18 at 15 09 54] <https://user-images.githubusercontent.com/386387/74744128-f9888300-5261-11ea-8f3d-e4e316872827.png> I have a few questions for you: - would you be able to create GeoTiff files using the standard EPSG4326 projection? The tool I used was unable to interpret your custom projection, but it worked fine after I converted them to EPSG4326 with GDAL (gdalwarp -t_srs EPSG:4326 be_3190653_rcp26.tif be_3190653_rcp26.4326.tif). Alternatively, we could do the conversion later, before storing them on the server (but I have no idea of the data flow at this point, so I'm not sure what's possible). - is the scale (range between the lowest and the highest value, and the mapping between a value and a displayed color) the same for all species and geotiff files, or should that be dynamic? - @peterdesmet <https://github.com/peterdesmet>: the prototype is quite rough and basic, let's sit together soon to have a look so I can add a few more features and make it more realistic. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#7?email_source=notifications&email_token=AC4KXBTIXILPUON4ZA7G3TLRDPVMDA5CNFSM4KKUQFDKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEMCEWWI#issuecomment-587483993>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC4KXBV6TBZ5FUQ6IJNKHWTRDPVMDANCNFSM4KKUQFDA> .

-- Dr. Amy J.S. Davis Data-driven solutions to invasive species and biodiversity conservation Terrestrial Ecology Unit Department of Biology Ghent University K. L. Ledeganckstraat 35 B-9000 Ghent Belgium http://amyjsdavis.com

[niconoe]

Thanks for all this. The web map prototype now has its own repository: https://github.com/trias-project/risk-maps