How to use wms link (from rectified/warped map) as background in Potlatch or JOSM

Potlatch does not support WMS. Instead, you need to use the "Tiles (Google/OSM scheme)" link provided by MapWarper, and add this to Potlatch 2.

MapWarper will give you a URL like this:

http://mapwarper.net/maps/tile/3/z/x/y.png

You should add the $ symbol before z, x, and y, to make:

http://mapwarper.net/maps/tile/3/$z/$x/$y.png

Then add this to Potlatch 2's background imagery dialogue.

In JOSM, TMS is recommended as well, the format is

http://mapwarper.net/maps/tile/313/{zoom}/{x}/{y}.png

If you like to use WMS, the URL template would be

http://mapwarper.net/maps/wms/313?FORMAT=image/jpeg&VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&Layers=image&STYLES=&SRS={proj}&WIDTH={width}&HEIGHT={height}&BBOX={bbox}

This can be retrieved by entering the WMS service URL (http://mapwarper.net/maps/wms/313?) in the "Add Imagery URL" dialog.

One thing to note:

Going straight to the Imagery menu, to attempt: Imagery -> Add Rectified Imagery

is almost certain to create frustration. It is not the same as doing this through: JOSM -> Preferences or File -> Import Image

JOSM -> Preferences is for either WMS or TMS and will add the appropriate underlays to the Imagery drop-down menu. File -> Import Image is for uploading a locally-stored GeoTIFF, etc.

Imagery -> Add Rectified Imagery is for WMS only and is looking for a URL in a format that the JOSM->Preferences approach will create for you.

That all said, TMS will work much better than WMS for zooming, etc.

It's possible to use WMS imagery in Potlatch2 through a proxy service like Whoots.

Use it like this:

http://whoots.mapwarper.net:80/tms/$z/$x/$y/WEB_MERCATOR/http://api.maps.vic.gov.au/geowebcacheWM/service/wms?VERSION=1.1.1&TILED=true

I have verified that this works.

Hi,

I go to http://mapwarper.net/ and the export tab. Copy the link "WMS: WMS base URL (for JOSM OpenStreetMap Editor )"

-> here I've tried using both the first and second link

Back to JOSM, menu Images > Add rectified image, and paste the URL, either as Map Warper (second option), or My own (third option). Just after the red tiles appear when the image layer is visible.

The process for metacarta is similar (this is what I've used lots in the past), click Warp, and the copy the link "WMS/WCS URL (Good for use with OpenLayers)", and paste as "Metacaarta Map rectifier" in JOSM>Images/Add rectified Image, 1st option, have also tried the 3rd option.

In JOSM, as soon as I click the eye in the Layers panel (ie activate), the red tiles appear.

Many thanks for pointing out what I'm missing in this process.

I've tried using rectified maps from both mapwarper and metacarta, and just get the red ERROR in JOSM. This used to work perfect in previous versions, but is this due to these services not being updated to support the format JOSM expects?