2011/2/9 Michaël Michaud <[email protected]>
> Hi Mohammed,
>
> I have tested your patch, but I have some concerns.
>
> From now on, when I try to load an image without tfw file, i'm no more
> asked for coordinates. Image is directly loaded with default coordinates
> (image coordinates ?).
> From time to time, I'm asked for coordinates, and if I push "Finish"
> without giving valid coordinate, the image is loaded (this behaviour is OK
> for me, but not repeatable).
>
> My concerns are :
> - Why the coordinates panel does not always appear if there is no tfw file
> (this question is probably not related to your code, it is probably related
> to how openwizard manage options and panels)
> - I agree that the user must be able to load image if he does not know
> coordinates, but he must also be able to enter world coordinates !
> If I apply your code, it is no more possible.
>
> I think one of these behaviours must be guaranted :
> - image without tfw file is ALWAYS loaded AFTER the user has been asked for
> coordinates (default coordinates are used if the user does not enter valid
> coordinates)
> - image without tfw file is loaded before or after being asked for
> coordinates (if we cannot find the reason why the second panel is not always
> shown), but he can input world coordinates for the image after the image has
> been loaded (georeferencing)
>
> What do you think about it ?
>
well I am not clear about your concerns.
Image without tfw will be asked for coordinates and if he doesnt enter the
coordinates it will apply the default minx,miny,maxx,maxy
and also creates a world file based on the extent. so when next time if it
loads the image it will reads the tfw file created by the above procedure
This is the expected behaviour. If you dont want to write to world file.
that is also possible using a small change in code.
I think my code is working because once we do not enter the world
coordinates it uses a default minx.... values and creates a world file
the next time you load the image the world file is present and it reads the
tfw file and opens the image.
Is that you need to know. if not i am ready to explain more :)
>
>
> Michaël
>
>
> Le 08/02/2011 06:28, Mohammed Rashad a écrit :
>
> Currently when loading raster it checks for world file and if world file
> is not found it shows a dialog asking for minx,miny,maxx,maxy.
> I am trying to do that if no worldfile is not found the above code should
> be applied and remove asking for extent
> because when loading a georeferenced raster image with no world file the
> user who loads the image may not be aware of its extent.
>
> so for loading rasters without knowing extent he needs to use gdal or
> other kind of library or may be another gis software to know the extent.
>
> this problem should be removed with my patch. please verify the patch and
> add it to svn
>
> --
> Thanks && Regards
> Rashad
>
>
> ------------------------------------------------------------------------------
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>
>
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>
>
>
> ------------------------------------------------------------------------------
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> Pinpoint memory and threading errors before they happen.
> Find and fix more than 250 security defects in the development cycle.
> Locate bottlenecks in serial and parallel code that limit performance.
> http://p.sf.net/sfu/intel-dev2devfeb
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--
Thanks && Regards
Rashad
------------------------------------------------------------------------------
The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE:
Pinpoint memory and threading errors before they happen.
Find and fix more than 250 security defects in the development cycle.
Locate bottlenecks in serial and parallel code that limit performance.
http://p.sf.net/sfu/intel-dev2devfeb
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