[gdal-dev] Experiences with the WMS driver

[Joaquim Manuel Freire Luís]

Thanks. That's right that modifying the host name prints the same size info but there is nothing in the url that permits to estimate the "Pixel Size".

Also, this not the main issue. The main one is when passing a valid "GetMap" string that works in a browser but errors in gdal_translate.


From: Momtchil Momtchev <momtchil at momtchev.com>
Sent: Monday, January 3, 2022 3:08 PM
To: gdal-dev at lists.osgeo.org; Joaquim Manuel Freire Luís <jluis at ualg.pt>
Subject: Re: [gdal-dev] Experiences with the WMS driver




    gdalinfo does not contact the remote server at all, it extracts all the information it displays from the URL.

    Try replacing the hostname with something invalid, keeping all the parameters and you will still get the same output.




On 01/01/2022 19:47, Joaquim Manuel Freire Luís wrote:


But if I do

gdalinfo "WMS:http://svs.gsfc.nasa.gov/cgi-bin/wms?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&LAYERS=3170_21483_bg&CRS=CRS:84&BBOX=-180.0,-90.0,180.0,90.0&TRANSPARENT=FALSE"

it seems to work but note the reported sizes and unreasonable resolution.

Data axis to CRS axis mapping: 1,2
Origin = (-180.000000000000000,90.000000000000000)
Pixel Size = (0.000000335276127,-0.000000335276127)
Image Structure Metadata:
  INTERLEAVE=PIXEL
Corner Coordinates:
Upper Left  (-180.0000000,  90.0000000) (180d 0' 0.00"W, 90d 0' 0.00"N)
Lower Left  (-180.0000000, -90.0000000) (180d 0' 0.00"W, 90d 0' 0.00"S)
Upper Right ( 180.0000000,  90.0000000) (180d 0' 0.00"E, 90d 0' 0.00"N)
Lower Right ( 180.0000000, -90.0000000) (180d 0' 0.00"E, 90d 0' 0.00"S)
Center      (   0.0000000,   0.0000000) (  0d 0' 0.01"E,  0d 0' 0.01"N)
Band 1 Block=1024x1024 Type=Byte, ColorInterp=Red
  Overviews: 536870912x268435456, 268435456x134217728, 134217728x67108864, 67108864x33554432, 33554432x16777216, 16777216x8388608, 8388608x4194304, 4194304x2097152, 2097152x1048576, 1048576x524288, 524288x262144, 262144x131072, 131072x65536, 65536x32768, 32768x16384, 16384x8192, 8192x4096, 4096x2048, 2048x1024, 1024x512



--

Momtchil Momtchev <momtchil at momtchev.com><mailto:momtchil at momtchev.com>
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