[gdal-dev] Re: gdal - java

[Even Rouault]

Wanted to CC the list in the first place as it might be of general interest...

Le Monday 09 March 2009 19:53:35, vous avez écrit :
> Paul,
>
> Frank has already almost said everything ;-)
>
> You need to be able to build (or get):
> - GDAL/OGR with OGDI support
> - the Java bindings by folllowing the hints given on the wiki
> http://trac.osgeo.org/gdal/wiki/GdalOgrInJava.
>
> http://trac.osgeo.org/gdal/browser/trunk/gdal/swig/java/apps/ogrinfo.java
> is indeed the closest example for your needs.
>
> I'm currently in the process to feed the Javadoc of the Java bindings. They
> can be found at http://gdal.org/java/. The OGR part, the one you want to
> use, is still incomplete however, but it should be relatively
> straightforward to guess what a Java method does by reading the doc of the
> corresponding C++ method at : http://gdal.org/ogr/hierarchy.html.
> You should also be aware that some methods in them only apply to the
> current development versions,.
>
> As Frank noted, the state of the Java bindings in recent released versions
> of GDAL/OGR is partly broken/incomplete. The above ogrinfo.java in its
> current state will not compile out of the box with GDAL/OGR <= 1.6.0,
> although you should be able to get the gist of it to work by
> adapting/commenting out some parts.
>
> Best regards
>
> Le Monday 09 March 2009 15:52:09 Frank Warmerdam, vous avez écrit :
> > On Mon, Mar 9, 2009 at 9:29 AM, Paul Malm <paul.malm at gmail.com> wrote:
> > > Mr Warmedam,
> > > I'm sorry to bother you again, I got your mail about VPF readers in
> > > java. I have not found any good ones yet... but I can see that you have
> > > a java version of your GDAL/OGR library. The problem is that I do not
> > > understand how to use it, is there a explanation on some wiki or
> > > likewise? I can't understand how to use the Java bindings from
> > > http://trac.osgeo.org/gdal/wiki/GdalOgrInJava
> > > I would be happy to just read maps/charts in VPF/S57 format.
> >
> > Paul,
> >
> > There is VPF reading code in OpenMap from BBN, and I was
> > vaguely under the impression there was VPF support in
> > GeoTools as well (both in Java).
> >
> > Using the GDAL Java bindings can be moderately involved.
> >
> > The url you quote is a good start for example Java code, and
> > (I think) build hints.  You will still need to be familiar with the
> > general OGR data model, and API which are described at:
> >
> >   http://www.gdal.org/ogr/ogr_arch.html
> >   http://www.gdal.org/ogr/ogr_apitut.html
> >
> > Possibly the best example Java OGR program is:
> >
> > http://trac.osgeo.org/gdal/browser/trunk/gdal/swig/java/apps/ogrinfo.java
> >
> > It is sometimes difficult to get a build of all the components to
> > use GDAL/OGR from Java.  The OSGeo4W distribution includes
> > Java bindings support, but it is a bit outdated and is windows
> > only.  If that is sufficient for your needs you can find OSGeo4W
> > at the following url, and you would need the gdal, and gdal-java
> > packages (through advanced install):
> >
> >   http://osgeo4w.osgeo.org/
> >
> > There have been many improvements by Even Rouault
> > to the Java bindings in recent weeks, but you would need
> > to build things from source which is not always easy.  It
> > might be best to followup with Even (perhaps on the gdal-dev
> > mailing list) if you have additional questions.
> >
> > Best regards,
> >
> > ---------------------------------------+---------------------------------
> >-- --- I set the clouds in motion - turn up   | Frank Warmerdam,
> > warmerdam at pobox.com light and sound - activate the windows |
> > http://pobox.com/~warmerdam and watch the world go round - Rush    |
> > Geospatial Programmer for Rent