[Qgis-developer] GSoC: GDAL/OGR frontend plugin?

Tue Mar 17 11:18:36 EDT 2009

Hi Godofredo,

I'm not working with python. So I can't help you with your problem, sorry.

gdal translate would be a nice addition to the gdal plugin, but I'm coding
in c++. It would be great if we can merge our plugins in any way. Does
anybody has an idea for that?

Best regards,
Florian

>
>
>
>         Hi Florian and Ivan:
>
> Sorry for my late reply, I meant a raster dialog to wrap the funtionality
> of gdal_translate. For example choose a raster file, select a new file, an
> output format and the creation options to export from gtiff to ecw,
> jpg2000 or any other format available in gdal. An example of such dialog
> is the openev export tool.
>
> The openev export tool is written in python and I tried to create a python
> plugin borrowing the code but I couldn't make the progress callback of
> gdalcreatecopy work. I always got a runtime error saying "object passed
> is not a python function". Florian if you are working with python have you
> faced this problem?
>
> I can think in a class like QgsVectorFileWriter for rasters to enable a
> "save as" option to export the currently selected raster layer in legend
> to any gdal enabled format.
>
> Also if you are doing something similar I would like to join efforts
> instead
> of replicating work.
>
> Regards
> Godofredo Contreras
>
>> From: ivan.lucena at pmldnet.com
>> To: fhillen at uni-osnabrueck.de; qgis-developer at lists.osgeo.org
>> Subject: RE: [Qgis-developer] GSoC: GDAL/OGR frontend plugin?
>> Date: Thu, 12 Mar 2009 17:36:37 +0000
>> CC:
>>
>> Hi There,
>>
>> Good discussion and I hope I am not intruding.
>>
>> Are you guys talking about a "Export Raster Data" dialog similar to what
>> ArcMap has?
>>
>> A UI where you can enter create-options, data-type, metadata and
>> output-format?
>>
>> That would be nice but it doesn't look like a plugin but rather a
>> internal implementation.
>>
>> Just a thought.
>>
>> Regards,
>>
>> Ivan
>>
>>
>> >  -------Original Message-------
>> >  From: Florian Hillen <fhillen at uni-osnabrueck.de>
>> >  Subject: RE: [Qgis-developer] GSoC: GDAL/OGR frontend plugin?
>> >  Sent: Mar 12 '09 16:30
>> >
>> >  Hi Godofredo,
>> >
>> >  do you mean translate a JPEG into a TIFF? Or what do you exactly
>> mean?
>> >  The first function is only the reprojection between different crs,
>> this
>> >  means: Select a rasterfile (e.g. epsg: 4326), choose new filename and
>> crs
>> >  (e.g. epsg: 31467) and receive a new raster with the new crs.
>> >  All further function (gdal translate too) are also planed bit by bit
>> ;)
>> >
>> >  Best regards,
>> >  Florian
>> >
>> >
>> >
>> >  >
>> >  > Hi Florian:
>> >  >
>> >  >
>> >  >
>> >  > Are you considering the export between formats for GDAL
>> >  >
>> >  > in your GDAL frontend?.
>> >  >
>> >  >
>> >  >
>> >  > Regards
>> >  >
>> >  > Godofredo Contreras
>> >  >
>> >  >
>> >  >> Date: Thu, 12 Mar 2009 14:08:14 +0100
>> >  >> Subject: Re: [Qgis-developer] GSoC: GDAL/OGR frontend plugin?
>> >  >> From: fhillen at uni-osnabrueck.de
>> >  >> To: qgis-developer at lists.osgeo.org
>> >  >>
>> >  >> Hi Ian,
>> >  >>
>> >  >> I'm currently working on a GDAL frontend. In the first step it
>> includes
>> >  >> only the warp / reproject part, but it is designed to be expanded
>> >  >> afterwards.
>> >  >>
>> >  >> I think that the ogr plugin is very intuitive, but maybe that just
>> my
>> >  >> opinion ;)
>> >  >>
>> >  >> Best regards,
>> >  >> Florian
>> >  >>
>> >  >>
>> >  >>
>> >  >> > Hello all,
>> >  >> > I'm looking for a good Google Summer of Code project. Having
>> used QGIS
>> >  >> and
>> >  >> > being a proficient Python/GIS programmer I think its the perfect
>> fit.
>> >  >> I
>> >  >> > did
>> >  >> > some googling and saw that there is already some interest in a
>> >  >> GDAL/OGR
>> >  >> > front end, but I would really like to take this full on. The
>> >  >> OGR-converter
>> >  >> > plugin is not complete, as it can't do CRS transforms, and I
>> hate to
>> >  >> say I
>> >  >> > don't find it very intuitive. Furthermore I think a lot of the
>> >  >> GDAL/OGR
>> >  >> > functionality should be able to be done "in-place" on layers, so
>> one
>> >  >> could
>> >  >> > easily create a new layer from an existing one.
>> >  >> >
>> >  >> > I think unifying CRS related options could also go a long way,
>> using
>> >  >> GDAL
>> >  >> > to
>> >  >> > support more than just proj4 definitions and being able to
>> create a
>> >  >> custom
>> >  >> > CRS from any place that you can select them.
>> >  >> > Maybe its because my single biggest headache in learning GIS was
>> >  >> dealing
>> >  >> > with projections, and now that I understand them through the
>> command
>> >  >> line
>> >  >> > I
>> >  >> > want to make it easier on others to deal with them. I think QGIS
>> can
>> >  >> be
>> >  >> > the
>> >  >> > perfect tool for this because it is already great for
>> visualization.
>> >  >> >
>> >  >> > Please give me your feedback on this!
>> >  >> > Thanks
>> >  >> >
>> >  >> > --
>> >  >> > Ian Johnson
>> >  >> > _______________________________________________
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>> >  >> >
>> >  >>
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