[Qgis-developer] Re: RGB composition plugin

[Agustin Lobo]

Mauricio,

I've tested it and works fine, at least with tif files.

Few comments:

1. Add the ability to select the destination folder
2. Add a button to select/unselect display
3. Actually, better than the above, a similar plugin that would
just create the vrt file would be very useful. As the vrt file
might have many files (multispectral, hyperspectral, multi-temporal...), 
this plugin could just read the list of files from a text file.

Thanks a lot for your contribution!

Agus

Mauricio de Paulo wrote:
> 	As a ubuntu user I also saw that problem. At the moment I'm using
> GDAL's internals, not gdal_merge. You could say that the previous
> version was based on gdal_merge as I read some of it's code to start the
> plugin, but the recent upgrade is not really close to gdal_merge.
> gdal_merge used the xml editing that I avoided in this version, so I
> really implemented using python-gdal library. That's the only
> requirement now.
> 	Hope it works fine. I still don't know how windows and mac users are
> going to cope with python-gdal, but I think I saw the package in the
> osgeo repository.
> 	All the best,
> 	Maurício de Paulo
> 
> 
> On Sun, 2009-03-29 at 23:33 +0200, Agustin Lobo wrote:
>> I also think that we should use gdal as much as possible,
>> the gdal_utilities are very good and I do use vrt files a lot
>> for time series of images.
>> But one problem is getting the appropriate gdal binary
>> for the different unix distros. For example, the current
>> gdal binary for ubuntu 8.04 (which is the LTS) is only 1.4.4 and does 
>> not have gdal_merge, I had to download it separately.
>> How are you solving this problem? Are you including gdal_merge.py
>> or are you relying on the latest gdal version (which is 1.6.0 I think)?
>>
>> Agus
>>
>> Mauricio de Paulo wrote:
>>> Thanks for the interest, Augustin.
>>> I've upgraded it to 1.0 API and made a huge change in code so that it
>>> only uses gdal to set the VRT Raster, not xml messing anymore, so the
>>> code should be more stable with gdal.
>>> Again, the plugin is a gui to create a VRT raster colour composite. Gdal
>>> does everything else by itself.
>>> I should say that MANY features are being implemented in gdal through
>>> VRT and other XML stuff (as wms). Maybe we should start thinking about
>>> using VRT for other solutions (Filtering is the first easy one that I
>>> think, but I truly think that gdal can war on the fly using vrt).
>>> Thanks for testing,
>>> Maurício de Paulo
>>>
>>> On Sun, 2009-03-29 at 11:16 +0200, Agustin Lobo wrote:
>>>> Mauricio,
>>>> It would be great.  Do you have it in a repository?
>>>> Can we try it?
>>>>
>>>> Agus
>>>>
>>>> Mauricio de Paulo wrote:
>>>>> I've written a RGB composition plugin using virtual raster and gdal.
>>>>> Should I rewrite it to 1.0?
>>>>>
>>>>>   
>>>
> 
>