[Qgis-user] Beginner: scanned and georeferenced map looks stretched

[Alex Mandel]

Yes I meant Warp.

Enjoy,
Alex

On 07/29/2011 11:22 AM, Magnus Ekhall wrote:
> I'm using 1.7 with the "on the fly" box ticked.
> 
> I did not know of the GDALTools plugin.
> 
> Did you mean the Warp tool? (I can't find any transformation...)
> 
> Regards,
> Magnus
> 
> On 29 July 2011 19:53, Alex Mandel <tech_dev at wildintellect.com> wrote:
>> Oh and you have to check the Project on the Fly box (1.7+) in addition
>> to selecting the projection.
>>
>> Enjoy,
>> Alex
>>
>> On 07/29/2011 10:45 AM, Alex Mandel wrote:
>>> That depends, if you're using 1.7 that should work anything older and it
>>> won't. But I actually meant you should use the GDALTools plugin to
>>> reproject the file (Transformation).
>>>
>>> Enjoy,
>>> Alex
>>>
>>> On 07/29/2011 10:32 AM, Magnus Ekhall wrote:
>>>> I've tried that by going to Settings -> Project Settings and switching
>>>> to SWEREF99 there (immediate coordinate transformation box is ticked).
>>>>
>>>> But nothing happens at all which is surprising.
>>>>
>>>> When I look at the paper map I can see that indeed the SWEREF99
>>>> coordinates are square, but the WGS84 are stretched vertically.
>>>>
>>>> Am I doing something wrong with the reprojection?
>>>>
>>>> Regards,
>>>> Magnus
>>>>
>>>> On 29 July 2011 19:27, Alex Mandel <tech_dev at wildintellect.com> wrote:
>>>>> On 07/29/2011 09:49 AM, Magnus Ekhall wrote:
>>>>>> I'm a beginner with qgis and need some help.
>>>>>>
>>>>>> I've scanned a map and georeferenced it using the plugin.
>>>>>>
>>>>>> When it appears in qgis it looks stretched: about double as wide as on paper.
>>>>>> However, the coordinates are correct. I can load a gpx-file into a
>>>>>> vector layer, and it gets overlaid on the correct parts of the raster
>>>>>> map.
>>>>>>
>>>>>> Is there a way to change horizontal and/or vertical scale on the screen?
>>>>>>
>>>>>> I think the reason might be (please correct me if I'm wrong) that the
>>>>>> paper map is originally in SWEREF99, but I georeferenced in using
>>>>>> points of WGS84...
>>>>>>
>>>>>> I tried to georeference it in SWEREF99 directly, but then the gpx
>>>>>> tracks would load to completely different areas.
>>>>>>
>>>>>> Regards,
>>>>>> Magnus
>>>>>
>>>>> Try reprojecting it to the SWEREF99 and it will likely look more like
>>>>> the paper map.
>>>>>
>>>>> Enjoy,
>>>>> Alex
>>>>> _______________________________________________
>>>>> Qgis-user mailing list
>>>>> Qgis-user at lists.osgeo.org
>>>>> http://lists.osgeo.org/mailman/listinfo/qgis-user
>>>>>
>>>
>>> _______________________________________________
>>> Qgis-user mailing list
>>> Qgis-user at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>> _______________________________________________
>> Qgis-user mailing list
>> Qgis-user at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/qgis-user
>>
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-user