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

[Grant Slater]

Hi  Tim,

On Tue, 8 Jan 2019, 11:53 Tim Sutton <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
>


Great. I am more than happy for others to use this service in QGIS.
Brilliant that QGIS now natively support TMS/XYZ tiles.



> @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.

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.

Kind regards,

Grant



> Regards
>
> Tim
>
> On 08 Jan 2019, at 13:10, Grant Slater <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/
>
> 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
>
> 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
>
> Visit http://kartoza.com to find out about open source:
>
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>
> *Skype*: timlinux
> *IRC:* timlinux on #qgis at freenode.net
>
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