Mapnik from QT C++ with postGIS

[Alexander Stolen]

Hello. I try to work with Mapnik by C++, my map data is uploaded to postGIS. Where I can find some documentation? Maybe someone have a sample how to connect to postGIS with mapnik and c++?

[Artem Pavlenko]

Hi Alexander,

Have you seen :

https://github.com/mapnik/mapnik/blob/master/demo/c%2B%2B/rundemo.cpp

To use postgis.input instead of shape.input consult :
https://github.com/mapnik/mapnik/wiki/PostGIS

HTH

Artem

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[Alexander Stolen]

Hi Artem. :)
I alredy read it, thank you. When I try to use rundemo I recieve error: undefined reference to `mapnik::datasource_cache::register_datasources(std::string const&)'

I dont understand what I do wrong...

2013/9/30 Artem Pavlenko <ar...@mapnik.org>

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[Artem Pavlenko]

Please post more details about your setup - compiler version/flags, OS .. etc.

I can't guess what you're doing wrong, otherwise :)
Artem

[Alexander Stolen]

I use windiws 7x64, qt 5.1 with mingw compiler.

[smartitc]

Dear all,

I am technically in charge of a beautiful site (Cultural Heritage - Rome) with GeoServer and Openstreetmap maps.

www.futouring.it

Map server is not very competitive with Mapnik, and current rendering is … let's say subject to improvement.
Knowing map server limitations I would have considered very appropriate a Mapnik integration with Geoserver , afterall they are OGC and open data matters.

What can I do, is there any integration?

If not why not?

Maybe this has been already discussed .. if this is the case sorry for that …but.

Thanks
Stefano.

[Alexander Stolen]

Hello again. When I try to create postgis datasouce_cache like in sample https://github.com/mapnik/mapnik/wiki/PostGIS, happends exception "Could not create datasource for type: 'postgis'", what I do wrong? I use windows 7x64, QT5 with msvc2010.

2013/10/1 smartitc <stefano.m...@smartitc.com>

[Dane Springmeyer]

On Oct 4, 2013, at 9:59 PM, Alexander Stolen <rea...@gmail.com> wrote:

> Hello again. When I try to create postgis datasouce_cache like in sample https://github.com/mapnik/mapnik/wiki/PostGIS, happends exception "Could not create datasource for type: 'postgis'", what I do wrong? I use windows 7x64, QT5 with msvc2010.
>

This error indicates that you have not registered the postgis plugin. Use: `mapnik::datasource_cache::instance().register_datasources()` to do this, like you see in the c++ example program:

https://github.com/mapnik/mapnik/blob/master/demo/c%2B%2B/rundemo.cpp#L65

Dane

[Alexander Stolen]

Thank you. :)

воскресенье, 6 октября 2013 г., 0:37:39 UTC+4 пользователь Dane Springmeyer написал: