[gdal-dev] Re: gdal - java

[Simone Giannecchini]

I just notice this message therefore I thought I would share some thoughts.

There has been an experiment in geotools a while ago in order to
support ogr as a datastore to access more formats (s57 where are you
:-) ), the result is an unsupported module in our svn

http://svn.osgeo.org/geotools/trunk/modules/unsupported/ogr/

It might be worth stepping up and taking care of it so that you would
get all the needed community support and actually you would also take
advantage of the geotools infrastructure that's already there.

Similar work, in much better status though, has been done for GDAL,
but I will probably send a separate email soon for that.

Ciao,
Simone.
-------------------------------------------------------
Ing. Simone Giannecchini
GeoSolutions S.A.S.
Owner - Software Engineer
Via Carignoni 51
55041  Camaiore (LU)
Italy

phone: +39 0584983027
fax:      +39 0584983027
mob:    +39 333 8128928


http://www.geo-solutions.it
http://simboss.blogspot.com/
http://www.linkedin.com/in/simonegiannecchini

-------------------------------------------------------



On Mon, Mar 9, 2009 at 7:57 PM, Even Rouault
<even.rouault at mines-paris.org> wrote:
> 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
>
>
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