[GeoNode-users] Adding a XYZ basemap to GeoExplorer

[Stefan Steiniger]

Hi Paolo,

Why woyld you have negative tile ids? This does not make sense to me that a
tile service would not account for it. Did you check the standard?

Perhaps this link helps? https://wiki.openstreetmap.org/wiki/TMS

Cheers,
Stefan


On Mon, Feb 18, 2019, 13:49 Alessio Fabiani <alessio.fabiani at gmail.com
wrote:

> Hi Paolo,
> I'm afraid you will need to create a custom ptype, similar to OSM as an
> instance, which is able to correctly parse and create urls for this
> particular use case.
>
> Il giorno lun 18 feb 2019 alle ore 17:28 Paolo Pasquali <
> paolo.pasquali at gmail.com> ha scritto:
>
>> Dear all,
>>
>> I understand this is more a GeoExplorer matter but maybe you can help...
>>
>> I would like to add a XYZ layer as a basemap so I've changed my settings
>> accordingly.
>> The problem is that I cannot solve the z/x/y url pattern, in particular I
>> should have (my guess, since the tiles goes on the other side of the
>> equator) a negative y. Here is my settings:
>>
>> {
>>     "source": {"ptype": "gxp_olsource"},
>>     "type": "OpenLayers.Layer.XYZ",
>>     "title": "CD:NGI Topo",
>>     "args": ["CD:NGI Topo", "
>> https://htonl.dev.openstreetmap.org/ngi-tiles/tiles/50k/${z}/${x}/${-y}.png
>> "],
>>     "name": "background",
>>     "attribution": "State Copyright © 1996–2013 <a href=\"
>> http://www.ngi.gov.za\">Chief Directorate: National Geo-spatial
>> Information</a>",
>>     "visibility": False,
>>     "wrapDateLine": True,
>>     "fixed": True,
>>     "group":"background"
>> },
>>
>> Unfortunately, OpenLayers (or GeoExplorer) cannot solve the -y because I
>> get this for a tile:
>> https://htonl.dev.openstreetmap.org/ngi-tiles/tiles/50k/5/17/$%7B-y%7D.png
>>
>> Is there a way to handle this? I've also tried with OpenLayers.Layer.OSM but
>> had the same result.
>>
>> Thanks in advance for your help.
>>
>> Best,
>>
>>
>> Paolo
>>
>>
>>
>>
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