[Arches] Re: Map overlay

Fri, 06 Mar 2020 11:53:12 -0800 

Hi Robin,

Yes, you can add a geoTIFF as either an overlay or basemap to Arches.  The 
steps are:

1. Set up a service for your geoTIFF.  There are lots of ways to do this (a 
little googling will reveal plenty of options).  One choice is to use 
GeoServer (http://geoserver.org/), an Open Source geospatial server for 
both raster and vector data.  GeoServer has excellent documentation, and 
there is a very good step-by-step summary of configuring a service for 
geotiffs.  

2. Once you've set up your service, you'll need to register it with 
Arches.  Here's an example of how to define a raster service (in this case, 
served from esri):

{
    "name": "ESRI World Topo",
    "sources": {
        "ESRI World Topo": {
            "type": "raster",
            "tiles": 
["https://services.arcgisonline.com/arcgis/rest/services/World_Topo_Map/MapServer/WMTS/tile/1.0.0/World_Topo_Map/default/default028mm/{z}/{y}/{x}.png";],
            "tileSize": 256
        }
    },
    "layers": [
        {
        "source": "ESRI World Topo",
        "type": "raster",
        "id": "agoltopo"
        }
    ]
}

The key for you will be to replace the "tiles" URL with the proper URL for 
your service.  

Once you've defined your service, you can register it with Arches using the 
"add_mapbox_layer" which will look something like this:

python manage.py packages -o add_mapbox_layer -j *path to 
file*/Sausalito.json -n "Sausalito Zoning"


- Dennis








On Thursday, March 5, 2020 at 11:40:30 AM UTC-8, Robin Rönnlund wrote:
>
> Dear all,
>
> I have been informed by several people that it is possible to add a 
> rectified geoTIFF as a map overlay in Arches, but I have failed to find how 
> to do this. Is there a guide that I haven't found, or is this a more 
> esoteric issue?
>
> I have a site-plan (georeffed in WGS84) of a particular archaeological 
> site, and we would need it as the local basemap showing where specific 
> archaeological finds have been found.
>
> Robin
>

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