[Talk-ca] Using ImportImagePlugin in JOSM

[Sam Vekemans]

Hi,
Sure, can you send a link to the .zip file containing those maps that you
need converted?

In Victoria, there is a meet-up group called Victoria geo-geeks, i can pass
it on and ask around if i cant figure it out :)  There is also the osgeo
mailing lists who has a wide variety of experts.   (For stuff like this
which is slightly out of OSM-land)
Other software might be needed in the in-turn for re-projecting to a format
that JOSM likes.

If it's just .jpg that needs to be stretched mapwarper is a cool tool for
it.
http://mapwarper.net/
and depending on the area your looking at, we can see if their is other
datasets that are available, and just not yet in OSM (but could be, ... if
...)

Cheers,
Sam


On Sun, Jan 30, 2011 at 10:16 AM, Peter Freeman <petersfreeman at gmail.com>wrote:

>  I am unable to get the InstallImagePlugin to work in JOSM
>
> GOAL
> ====
>
> I have an image of a map that I scanned and I want to load it into JOSM as
> an underlay so I can trace the ways on the map in JOSM.
>
> PREPARATION
> ============
>
> The map file is called map.jpg and I have created a world file called
> map.wld
>
> TRIALS
> ======
>
> I don't fully understand the values I need for the world file, however it
> represents an area approximately 8 kilometres (West to East) by 6 kilometres
> (North to South) and the top left hand edge of the map is approximately at a
> latitude of  1.5 (North) and a longitude of 103.5 (East) so I looked at this
> link:  http://en.wikipedia.org/wiki/World_file and my file contains these
> values as a starting point:
>
> 100.0
> 0.0
> 0.0
> -100.0
> 103.5
> 1.5
>
> When I load the image, the plugin notices that I don't have a projection
> file (.prj) so it asks me if I want the default coordinate system.  I choose
> Yes.  Nothing appears and the scale (top left corner of JOSM goes to 20037.5
> and I cannot zoom in or out.  I have varied the values in the world file
> considerably but with the same result.
>
> QUESTIONS
> ==========
>
> Has anyone used this plugin?
> Can you give me reasonably correct values for my world file?
> Do I need to create a projection file
> What do I need to do to make this work?
>
> Thank you,
>
> Peter
>
>
>  --
>
> Peter Freeman
> 180 Musgrave Place
> Salt Spring Island, V8K 1V5
> British Columbia, Canada
> (250) 653-4623 <tel:+12506534623>
> http://members.shaw.ca/petersfreeman
>
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>
>
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