[OSGeo Africa] Historic Topographic Map Series of Namibia now online

[Tim Sutton]

Hi

> On 08 Jan 2019, at 21:01, Grant Slater <openstreetmap at firefishy.com> wrote:
> 
> Hi  Tim,
> 
> On Tue, 8 Jan 2019, 11:53 Tim Sutton <tim at kartoza.com <mailto:tim at kartoza.com> wrote:
> Hi
> 
> Wow that is really cool! I was able to easily add the Nambia toposheet tiles to QGIS 3.x using this XYZ Connection URL:
> 
> https://namibia-topo.openstreetmap.org.za/layer/na_sgswa_topo_50k/{z}/{x}/{y}.png <https://namibia-topo.openstreetmap.org.za/layer/na_sgswa_topo_50k/%7Bz%7D/%7Bx%7D/%7By%7D.png>
> 
> 
> Great. I am more than happy for others to use this service in QGIS. Brilliant that QGIS now natively support TMS/XYZ tiles.

Oh its not new, QGIS supports XYZ from somewhere in 2.x.

> 
> 
> 
> @Grant any chance you can make the non map areas transparent instead of black?
> 
> Good idea, I will update shortly.
> 
> Despite the file extension being .png I currently generate JPEG tiles. I use mapserver under the hood to dynamically generate the tiles with nginx acting as a front-end and cache layer. I see that mapserver 7.2+ has the option of automatically falling back to PNG when there is an alpha channel, I will give this a go.


Thanks so much!

> 
> Mapserver is via fastcgi. Maybe I should do mini write-up on how it runs with a working docker example. More than happy to share config.

Yes that would be great! So you don’t pre-seed all the tiles like I think you did for the NGI imager?

Regards

Tim

> 
> Kind regards,
> 
> Grant
> 
> 
> 
> Regards
> 
> Tim
> 
>> On 08 Jan 2019, at 13:10, Grant Slater <openstreetmap at firefishy.com <mailto:openstreetmap at firefishy.com>> wrote:
>> 
>> Hi All,
>> 
>> I am very pleased to say I now have the 1970s / 1980s 1:50k
>> topographic series of Namibia online:
>> 
>> https://namibia-topo.openstreetmap.org.za/ <https://namibia-topo.openstreetmap.org.za/>
>> 
>> I was able to purchase scans of 1218 of the required 1221 sheets from
>> Madmappers.com and run a nearly successful GoFundMe campaign to recoup
>> costs, which will allow me follow up with other countries:
>> https://www.gofundme.com/namibian-topographic-maps <https://www.gofundme.com/namibian-topographic-maps>
>> 
>> If anyone is able to help me get good scans of the following sheets it
>> would be very much appreciated.
>> 
>> * Sheet 1712CC (missing)
>> * Sheet 1819BB (missing)
>> * Sheet 1820AA (missing)
>> * Sheet 1712BD_Okakora_Ed-1-sgswa_1980 (poor quality scan)
>> * Sheet 2214CB-DA-Swakopmund_Ed-1-sgswa_1981 (poor quality scan)
>> * Sheet 2214CD-DC_Walvisbaai_Ed-1-sgswa_1981  (poor quality scan)
>> * Sheet 2314CB-DA_photomap_Ed-1-sgswa_1980  (poor quality scan)
>> 
>> Any feedback or comment?
>> 
>> Any recommendations on which country to try next? Any help greatly appreciated.
>> 
>> Kind regards,
>> 
>> Grant
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> —
> 
> 
> 
> 
> 
> 
> 
> 
> Tim Sutton
> 
> Co-founder: Kartoza
> Ex Project chair: QGIS.org <http://qgis.org/>
> 
> Visit http://kartoza.com <http://kartoza.com/> to find out about open source:
> 
> Desktop GIS programming services
> Geospatial web development
> GIS Training
> Consulting Services
> 
> Skype: timlinux 
> IRC: timlinux on #qgis at freenode.net <http://freenode.net/>
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—








Tim Sutton

Co-founder: Kartoza
Ex Project chair: QGIS.org

Visit http://kartoza.com <http://kartoza.com/> to find out about open source:

Desktop GIS programming services
Geospatial web development
GIS Training
Consulting Services

Skype: timlinux 
IRC: timlinux on #qgis at freenode.net

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