[Qgis-developer] hints for writing a C++ plugin

[Diego Gnesi Bartolani]

Hi,

I'm new to this mailing list. I am writing a plugin for QGIS in order to
perform complex cost surface analyses. I wrote some code in Python using
GDAL, and it works but it is too slow. So, I'm considering the possibility
to re-write the plugin in C++, but C++ plugins are less documented and I
have few questions:

- can they be deployed in the same way Pythons plugins are? (Or, if not,
what the user shall do to install the plugin and what have I to do deploy
it?)
- which library shall I use to read and write raster data from a C++ QGIS
plugin? GDAL or a specific QGIS API? And if the answer is GDAL, can I trust
that this library will be installed in final user's pc?

Thanks!!
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Re: [Qgis-developer] hints for writing a C++ plugin

[Alexander Bruy]

Hi Diego,

On Fri, 15 Mar 2013 10:00:41 +0100
Diego Gnesi Bartolani diego.gn...@gmail.com wrote:

 - can they be deployed in the same way Pythons plugins are? (Or, if not,
 what the user shall do to install the plugin and what have I to do deploy
 it?)

C++ can't be installed via Plugin Installer. Users should download
plugin library (.dll or .so) and put it in right place manually.

 - which library shall I use to read and write raster data from a C++ QGIS
 plugin? GDAL or a specific QGIS API? And if the answer is GDAL, can I trust
 that this library will be installed in final user's pc?

You can use any library for raster processing. GDAL is one of the
possible solutions. If you decide to use GDAL, don't worry, QGIS
itself relies on this library, so users will have it on their PC

-- 
Alexander Bruy
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