[Qgis-user] How can I use a jpg of map as base layer & then ensure GPX waypoints match up

[Carlos Cerdán]

If I'm not confused too, you must georeference your image. Two 
sample-google results:

http://glaikit.org/2011/03/27/image-georeferencing-with-qgis/

http://www.digital-geography.com/qgis-tutorial-i-how-to-georeference-a-map/

Carlos

El 19/11/13 17:06, Alex Mandel escribió:
> On 11/19/2013 01:59 PM, Michael White wrote:
>> Hello everyone. The latest map for my atoll was 1986 (paper only 1:25,000), but I have a high res jpg which I've uploaded into QGIS 2.0 OK. Map was in UTM zone 4. I have also successfully uploaded a GPX file of waypoints that I'd like to display on the map. At the moment I can still move the jpg around in the map window. What do I need to do to fix the map in place and how can I relate the waypoints (WGS84) to the map. Is there a way to select a lat/long on the map and then the same waypoint in my GPX file, thus linki9ng the two things? Thanks Michael
>>
>>   
>> Dr Michael White
>
> You're slightly confused. The map will always be pan enabled, you aren't
> actually moving the image, you're changing the center point of your
> view. What you want to do is enable projection on the fly, making sure
> that the projection definition for your jpg is correct to begin with.
> Once you do that your GPX points will overlay properly.
>
> http://www.qgis.org/en/docs/user_manual/working_with_projections/working_with_projections.html
>
> Thanks,
> Alex
>
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-user