geoportail IGN france

[geophil]

I see. I have found https://geoservices.ign.fr/services-web-experts-ortho now.

The result of GetCapabilities says that jpeg and png are supported. However, I also get only white images. To test, I manually composed an URL from their inspire example and that worked:

https://wxs.ign.fr/ortho/geoportail/r/w ... HEIGHT=256

I will have to investigate what TransDEM does differently. That will take some time.

[ajeanne]

youhave same prob than me

the parameter is in choice range scale if out of limit for the server
you have blank or black image
if you are in limit you have correct image and trf georef

i am also testing what is the limit to use

alain

[geophil]

Ok. Scale in TransDEM will be translated into a bounding box for the WMS URL. It means that both scale and image pixel size could play a role here.

[geophil]

After a bit of playing around, I found these settings to work for me:

Code: Select all

<?xml version="1.0" encoding="iso-8859-1" ?>

<WmsServers version="1.0" globalScaleParam="10000.000000" >
  <ServerGroup name="France" >
    <Server name="IGN France Ortho" url="https://wxs.ign.fr/ortho/geoportail/r/wms" url2="" user="" referer="" width="2000" height="2000" noBBox="0" background="0" transparent="0" prefVers="0" ignSvrSRS="0" >
      <Layer name="HR.ORTHOIMAGERY.ORTHOPHOTOS" scale="0.070711" />
      <Layer name="ORTHOIMAGERY.ORTHOPHOTOS" scale="0.091924" />
      <Layer name="ORTHOIMAGERY.ORTHOPHOTOS.BDORTHO" scale="0.212132" />
      <Layer name="ORTHOIMAGERY.ORTHOPHOTOS.IRC" scale="0.091924" />
    </Server>
  </ServerGroup>
</WmsServers>

I only tested the 20cm and the 50cm layers. Image size 2000 x 2000 px seems OK. Coordinate system RGF93.

[ajeanne]

i have send by email parameter for me

i made 20000/2500 for lowest
10000/2500 for low
1000/2500 for medium
420/2500 for high

it is ok for me

alain

[geophil]

So, the IGN WMS does work for you now?

[ajeanne]

yes its work it is slow when i ask high def but i have quality that i want

thank's

[ajeanne]

https://carto.graou.info/

do you know this ?

on this web site you have railway cartographie and signal on track

do you think idea make capture info and import in transdem ?

best regarsd

Alain

[geophil]

https://carto.graou.info/
do you think idea make capture info and import in transdem ?

This seems to be a combination of raster and vector data, similar to OpenRailwayMap, but including realtime data. Not compatible with TransDEM, I'm afraid.

[ajeanne]

ok understand many thank's