Re: [boost] [gil] extensions

Subject: Re: [boost] [gil] extensions
From: Mateusz Loskot (mateusz_at_[hidden])
Date: 2010-03-08 19:51:18

Christian Henning wrote:
> Mateusz, qq. How does the Boost Geometry extensions work when they 
> are referencing each other? For instance, gil::io_new includes some 
> stuff from gil::toolbox. Meaning when someone checks out gil::io_new 
> he/she would need to download toolbox, as well. The only solution, I 
> can think of, is to check out all extensions at all time. Like we do 
> with boost. When using boost we tend to have all of the boost code at
>  hand and not a subset.  I think we should make that a recommendation
>  in the documentation.

So far, I have identified only two inter-extensions dependencies
in Boost.Geometry. It is:

1) gis/projections use gis/geographic by including

<boost/geometry/extensions/gis/geographic/strategies/dms_parser.hpp>

2) gis/latlong use gis/geographic by including
<boost/geometry/extensions/gis/geographic/strategies/andoyer.hpp>

In fact, we have not documented any recommendations for extensions users
yet, but I suppose the approach of grabbing all extensions at once would
be the simplest way to use them.

However, it's a good idea to include information, in docs, that
particular extension A requires extension B, C, ...

So, user can makes its own way to install extensions.

Best regards,
-- 
Mateusz Loskot, http://mateusz.loskot.net
Charter Member of OSGeo, http://osgeo.org