[Qgis-developer] Re: [Qgis-user] QGIS Image Clipper Plugin Available

[Agustin Lobo]

Bruce,

Hopefully you'll find help among the developers,
this is really a critical missing utility in QGIS.

Agus

Bruce, Bob (CON) wrote:
> Agustin:
> 		I have not seen any of these errors in the Windows
> version of QGIS. It must be related to a difference between the two
> systems. I only have one Linux system and it is CENTOS and I haven't
> been able to build QGIS there yet.
>
> 	It may be possible to have an option to draw a circle (or
> perhaps cross-hairs) after the draw is done at the coordinates that are
> entered, I will check into this.
>
>     Bob
>
> -----Original Message-----
> From: qgis-user-bounces at lists.osgeo.org
> [mailto:qgis-user-bounces at lists.osgeo.org] On Behalf Of Agustin Lobo
> Sent: Tuesday, September 01, 2009 3:29 AM
> To: Bob Bruce
> Cc: QGIS User List
> Subject: Re: [Qgis-user] QGIS Image Clipper Plugin Available
>
> Very interested on both, many thanks for your
> contribution.
> I've tested on ubuntu jaunty with unstable qgis 1.2.0:
>
> 1.Image clipping (should not be named raster clipping?):
> Once I click "Clip the Image": I get:
>
> An error has occured while executing Python code:
>
> Traceback (most recent call last):
>   File 
> "/home/alobo/.qgis//python/plugins/image_clipper/dlgimageclipper.py", 
> line 228, in ClipImage
>     gdal_merge(gdalstring)
>   File 
> "/home/alobo/.qgis//python/plugins/image_clipper/gdal_merge_bb.py", line
>
> 467, in gdal_merge
>     fi.copy_into( t_fh, band, band, nodata )
>   File 
> "/home/alobo/.qgis//python/plugins/image_clipper/gdal_merge_bb.py", line
>
> 241, in copy_into
>     nodata_arg )
>   File 
> "/home/alobo/.qgis//python/plugins/image_clipper/gdal_merge_bb.py", line
>
> 48, in raster_copy
>     nodata )
>   File 
> "/home/alobo/.qgis//python/plugins/image_clipper/gdal_merge_bb.py", line
>
> 84, in raster_copy_with_nodata
>     t_xsize, t_ysize )
>   File "/usr/lib/python2.5/site-packages/osgeo/gdal.py", line 831, in 
> ReadAsArray
>     import gdalnumeric
>   File "/usr/lib/python2.5/site-packages/osgeo/gdalnumeric.py", line 1,
> in
>     from gdal_array import *
>   File "/usr/lib/python2.5/site-packages/osgeo/gdal_array.py", line 7,
> in
>     import _gdal_array
> ImportError: dynamic module does not define init function
> (init_gdal_array)
>
>
> 2. zoom-to-point plugin
> After installation, I get the same message as reported by Giovanni
> (just tried 09/1 10:22 am GMT+2)
> "The plugin seems to have been installed but I don't know where...."
>
> But the directory gets to its right place ant the plugin works.
>
> Just a suggestion: Could you add (optionally) a circle around the point?
>
> Even if it is the
> central point, sometimes you want to make sure it's around the feature 
> you want.
>
> Agus
>
> Bob Bruce wrote:
>   
>> Hi:
>>     I have a plugin available that people may be interested in 
>> testing. This can be used to extract and combine portions of one or 
>> more image layers in QGIS. I have only used this on Windows but 
>> hopefully it would work OK in Linux also. You can get it and some test
>>     
>
>   
>> data by going to the page: 
>> http://www.mappinggeek.ca/QGISPythonPlugins/Bobs-QGIS-plugins.xml . We
>>     
>
>   
>> have been using this plugin a lot at my workplace to extract the 
>> useable portions of scanned photography that we have georeferenced 
>> using the GDAL Georeferencer plugin.
>>
>> There is also the zoom-to-point plugin that I have tweaked to work 
>> better with zoom levels.
>>
>>       Bob Bruce
>>
>>     
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> 08/30/09 06:36:00
>   
>>   
>>
>>     
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