Re: [OSM-talk] JOSM display is squashed

2009-09-15 Thread Iván Sánchez Ortega
El Martes, 15 de Septiembre de 2009, Robert Scott escribió:
> On Tuesday 15 September 2009, Blaž Lorger wrote:
> > Use Mercator projection. But be careful. I think you have to use WGS84
> > for tracing over aerial imagery.
>
> WGS84 is a datum* not a projection. A datum maps points around the earth to
> lat/lon. A projection maps lat/lon points to the screen/paper etc.

I'm sure Blaž meant "WGS84 lat/lon" AKA "epsg:4326" ;-)

Anyway, to check the projection JOSM is using: go to Edit->Preferences, and 
once there, go to the "projection" tab (it looks like a pink grid over a 
globe). Then check that "mercator" is selected as the projection method.


Cheers,
-- 
--
Iván Sánchez Ortega 

Un ordenador no es un televisor ni un microondas, es una herramienta compleja.


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Re: [OSM-talk] JOSM display is squashed

2009-09-15 Thread Robert Scott
On Tuesday 15 September 2009, Blaž Lorger wrote:
> Use Mercator projection. But be careful. I think you have to use WGS84 for 
> tracing over aerial imagery.

WGS84 is a datum* not a projection. A datum maps points around the earth to 
lat/lon. A projection maps lat/lon points to the screen/paper etc.

WMS backgrounds work fine on Mercator in JOSM.


robert.

* and a few other things.

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Re: [OSM-talk] JOSM display is squashed

2009-09-15 Thread Blaž Lorger
Use Mercator projection. But be careful. I think you have to use WGS84 for 
tracing over aerial imagery.

  Blaž

On Tuesday 15 September 2009 20:18:57 d f wrote:
> Hi
> 
> I've downloaded some data to JOSM but the data is squashed in appearance in
>  the north-south direction. It causes inaccuracies when I map. For instance
>  i drew a rectangle at about 45 degrees, but when it showed in mapnik it
>  looked like a parallelogram.
> 
> I've downloaded the latest Java & JOSM.
> 
> Any ideas for a solution?
> 
> Cheers
> Dave F.
> 

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Re: [OSM-talk] JOSM display is squashed

2009-09-15 Thread Jack Stringer
Use Potlach ;-)

Jack

On Sep 15, 2009 7:22 PM, "d f"  wrote:

Hi

I've downloaded some data to JOSM but the data is squashed in appearance in
the north-south direction. It causes inaccuracies when I map.
For instance i drew a rectangle at about 45 degrees, but when it showed in
mapnik it looked like a parallelogram.

I've downloaded the latest Java & JOSM.

Any ideas for a solution?

Cheers
Dave F.


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[OSM-talk] JOSM display is squashed

2009-09-15 Thread d f
Hi

I've downloaded some data to JOSM but the data is squashed in appearance in the 
north-south direction. It causes inaccuracies when I map.
For instance i drew a rectangle at about 45 degrees, but when it showed in 
mapnik it looked like a parallelogram.

I've downloaded the latest Java & JOSM.

Any ideas for a solution?

Cheers
Dave F.



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