QGIS » QGIS Application

What is the WMS server that you're trying to connect to?

We have found that some servers are mis-configured and tend not to work (see, for example, the discussion in #103).

Hi,

sorry for the slow response - trac didn't notify me about
your comment (maybe it does now).

I used onEarth/JPL (which sometimes work, after 2 zooms it
crashes QGIS entirely) and DEMIS (which always fails).
gsherman confirmed in a IRC chat.

I tried one week ago, will update from SVN now.

Markus

It would help if you could attach to this ticket, QGIS's output to the console during one of these episodes. Even better if you are using a build compiled with debug turned on.

Also, WMS projection support has been firmed up further (see #3914) so this also may address your issue. Though I have to say, it works for me.

What version of Qt do you have?

OUTPUT FROM ATTEMPT TO LOAD DEMIS COUNTRY LAYER
gsHttpTransaction::getSynchronously: Using 'http://www2.demis.nl/mapserver/request.asp?request=GetCapabilities&version=1.0.0&SERVICE=WMS&VERSION=1.1.0&REQUEST=GetMap&BBOX=-180.000000,-90.000000,180.000000,90.000000&SRS=EPSG:4326&WIDTH=668&HEIGHT=334&LAYERS=Countries&STYLES=&FORMAT=image/gif&TRANSPARENT=TRUE'.
Warning: QgsHttpTransaction::getSynchronously: qurl.host() is 'www2.demis.nl'.
QgsHttpTransaction::getSynchronously: Starting get with id 3.
QgsHttpTransaction::getSynchronously: Setting httpactive = TRUE
QgsHttpTransaction::dataStarted with ID 3.
QgsHttpTransaction::dataStateChanged to 2.
An attempt to connect to the host is in progress.
QgsHttpTransaction::dataStateChanged to 3.
The client is sending its request to the server.
QgsHttpTransaction::dataStateChanged to 4.
The client's request has been sent and the client is reading the server's response.
QgsHttpTransaction::dataHeaderReceived: statuscode 200, reason 'OK', content type: _.
QgsHttpTransaction::dataStateChanged to 5.
The connection to the host is open, but the client is neither sending a request, nor waiting for a response.
QgsHttpTransaction::dataFinished with ID 3.
QgsHttpTransaction::dataFinished - no error.
QgsHttpTransaction::getSynchronously: Setting httpactive = FALSE
QgsHttpTransaction::getSynchronously: Response received.
QgsHttpTransaction: deconstructing.
QgsWmsProvider::draw: Response received.
QgsWmsProvider::draw: Exiting.
Debug: qgsrasterlayer.cpp: 1320: (draw) QgsRasterLayer::draw: Done dataProvider->draw.
Debug: qgsrasterlayer.cpp: 1321: (draw) QgsRasterLayer::draw: image stats:
Debug: qgsrasterlayer.cpp: 1323: (draw) depth = 0
Debug: qgsrasterlayer.cpp: 1324: (draw) bytes = 0
Debug: qgsrasterlayer.cpp: 1325: (draw) width = 0
Debug: qgsrasterlayer.cpp: 1326: (draw) height = 0
Debug: qgsrasterlayer.cpp: 1329: (draw) QgsRasterLayer::draw: Want to theQPainter->drawImage with
Debug: qgsrasterlayer.cpp: 1331: (draw) origin x = 0
Debug: qgsrasterlayer.cpp: 1333: (draw) (int)origin x = 0
Debug: qgsrasterlayer.cpp: 1334: (draw) origin y = 58
Debug: qgsrasterlayer.cpp: 1336: (draw) (int)origin y = 58
Debug: qgsrasterlayer.cpp: 1371: (draw) QgsRasterLayer::draw: exiting.
Debug: qgsmaprender.cpp: 285: (render) QgsMapRender::render: Done rendering map layers
setProgress called with 1/1
Debug: qgsmaprender.cpp: 320: (render), QgsMapRender::render: Rendering done in (seconds): 1752346657
QgsGrassPlugin::postRender()
Rendering n-arrow
Debug: qgsmaplayer.cpp: 555: (coordinateTransform) Maplayer asked for coordinateTransform which is....
Debug: qgsmaplayer.cpp: 562: (coordinateTransform) valid
Rendering n-arrow at Bottom Left
QgsMapCanvas::drawContents
QgsMapCanvas::drawContents

This is easier to read:

gsHttpTransaction::getSynchronously: Using 'http://www2.demis.nl/mapserver/request.asp?request=GetCapabilities&version=1.0.0&SERVICE=WMS&VERSION=1.1.0&REQUEST=GetMap&BBOX=-180.000000,-90.000000,180.000000,90.000000&SRS=EPSG:4326&WIDTH=668&HEIGHT=334&LAYERS=Countries&STYLES=&FORMAT=image/gif&TRANSPARENT=TRUE'.
Warning: [[QgsHttpTransaction]]::getSynchronously: qurl.host() is 'www2.demis.nl'.
[[QgsHttpTransaction]]::getSynchronously: Starting get with id 3.
[[QgsHttpTransaction]]::getSynchronously: Setting httpactive = TRUE
[[QgsHttpTransaction]]::dataStarted with ID 3.
[[QgsHttpTransaction]]::dataStateChanged to 2.
  An attempt to connect to the host is in progress.
[[QgsHttpTransaction]]::dataStateChanged to 3.
  The client is sending its request to the server.
[[QgsHttpTransaction]]::dataStateChanged to 4.
  The client's request has been sent and the client is reading the server's response.
[[QgsHttpTransaction]]::dataHeaderReceived: statuscode 200, reason 'OK', content type: _.
[[QgsHttpTransaction]]::dataStateChanged to 5.
  The connection to the host is open, but the client is neither sending a request, nor waiting for a response.
[[QgsHttpTransaction]]::dataFinished with ID 3.
[[QgsHttpTransaction]]::dataFinished - no error.
[[QgsHttpTransaction]]::getSynchronously: Setting httpactive = FALSE
[[QgsHttpTransaction]]::getSynchronously: Response received.
[[QgsHttpTransaction]]: deconstructing.
[[QgsWmsProvider]]::draw: Response received.
[[QgsWmsProvider]]::draw: Exiting.
Debug: qgsrasterlayer.cpp: 1320: (draw) [[QgsRasterLayer]]::draw: Done dataProvider->draw.
Debug: qgsrasterlayer.cpp: 1321: (draw) [[QgsRasterLayer]]::draw: image stats:
Debug: qgsrasterlayer.cpp: 1323: (draw) depth = 0
Debug: qgsrasterlayer.cpp: 1324: (draw) bytes = 0
Debug: qgsrasterlayer.cpp: 1325: (draw) width = 0
Debug: qgsrasterlayer.cpp: 1326: (draw) height = 0
Debug: qgsrasterlayer.cpp: 1329: (draw) [[QgsRasterLayer]]::draw: Want to theQPainter->drawImage with
Debug: qgsrasterlayer.cpp: 1331: (draw) origin x = 0
Debug: qgsrasterlayer.cpp: 1333: (draw) (int)origin x = 0
Debug: qgsrasterlayer.cpp: 1334: (draw) origin y = 58
Debug: qgsrasterlayer.cpp: 1336: (draw) (int)origin y = 58
Debug: qgsrasterlayer.cpp: 1371: (draw) [[QgsRasterLayer]]::draw: exiting.
Debug: qgsmaprender.cpp: 285: (render) [[QgsMapRender]]::render: Done rendering map layers
setProgress called with 1/1
Debug: qgsmaprender.cpp: 320: (render), [[QgsMapRender]]::render: Rendering done in (seconds): 1752346657
[[QgsGrassPlugin]]::postRender()
Rendering n-arrow
Debug: qgsmaplayer.cpp: 555: (coordinateTransform) Maplayer asked for coordinateTransform which is....
Debug: qgsmaplayer.cpp: 562: (coordinateTransform) valid
Rendering n-arrow at Bottom Left
[[QgsMapCanvas]]::drawContents
[[QgsMapCanvas]]::drawContents

Using the following URLs worked:

DEMIS: http://www2.demis.nl/wms/wms.asp?wms=WorldMapx%x%

QGIS: http://qgis.org/cgi-bin/mapserv?map=/var/www/maps/main.mapx%x%

Hi,

apparently this is sufficient:
http://www2.demis.nl/wms/wms.asp

etc.
Now it works.
thanks
Markus

Milestone Version 0.8 deleted