Map to Show WMS Content : 2000 x 2000 pixel maximum?

Question

Hello,

I am trying to show a WMS map on a 4k monitor with mapproxy hosted content. But it only shows the map if it is max. 2000 x 2000 pixel big.

It is no server problem :

My mapproxy server is configured to deliver much more than 2000 pixels. And I am able to see these pictures if I open it in the Internet Explorers.

What I see on the server is that my client wants a 0 size big picture if I want a bigger size than 2000 x 2000

Regards,

Marvin Kalani

DominiqueBroux · Answer

Dominique :

1) With Version 10.2.5.857 the  image is displayed when I stretch the image over 2048 in width. The 0 map request is fixed in that version.

Great. That's the expected behavior. Thanks for letting us know that the bug is fixed.

But the street names are unreadable now if I only stretch into one direction.

The strech should be uniform in both directions. Do you observe another behavior?

MarvinKalani · Answer

Dominique :

1) With Version 10.2.5.857 the  image is displayed when I stretch the image over 2048 in width. The 0 map request is fixed in that version. But the street names are unreadable now if I only stretch into one direction.

2) Because it's a local running Mapproxy server, I can not share the wms service url with you.

Morten : the "max_output_pixels" setting is configured to [9999,9999] but I can't find no direct setting for MaxHeight or MaxWidth. Maybe you could help me with the MapProxy configuration to set the right value.

SomeGISGuy · Answer

Most servers we tested with had a max size of 2048, but often didn't advertise it, so we did put in a limit of 2048 if it wasn't specified in the capabilities. However the image shouldn't end up as 0, but stretch the 2048x2048 image instead (so that might be a bug).

If you can modify the capabilities to include the MaxWidth/MaxHeight properties and set them to something very large, you can override the default 2048 maximum.