Is the MINSCALE property necessary?
From: Brock Anderson <[EMAIL PROTECTED]>
To: "M.L. Jackson" <[EMAIL PROTECTED]>
CC: [email protected]
Subject: Re: [UMN_MAPSERVER-USERS] WMS Layer Problem
Date: Mon, 26 Jun 2006 09:45:31 -0700
Check your tomcat logs for incoming requests for the WMS photo service.
Those will give clues. I suspect you'll find that the requests are using
bboxes that are too large for your photo service. (Your photo service seems
to reject requests with bboxes larger than the extents of the DOQ layer.
It's a bit finicky, and you may have to work around that. Perhaps increase
the extents of your photo service.)
Brock
M.L. Jackson wrote:
Actually, I'm using the bbox range that you indicated in your other reply
and still not getting a wms layer image. That error message that I posted
is old. I just thought that it might indicate a problem because I haven't
changed much since then.
From: Brock Anderson <[EMAIL PROTECTED]>
Reply-To: Brock Anderson <[EMAIL PROTECTED]>
To: [email protected]
Subject: Re: [UMN_MAPSERVER-USERS] WMS Layer Problem
Date: Mon, 26 Jun 2006 09:26:25 -0700
Yes, that URL from the Tomcat log is probably the one that Mapserver used
to request the photo layer.
Recall the error message I mentioned before said "Invalid Lon-Lat
coordinates, must specify at least one (lon,lat) pair correctly;
Longitude must be between -170 and -60 Latitude must be between 15 and 75
". The bbox in your URL is outside that range.
Brock
M.L. Jackson wrote:
Thanks for the reply. I tried changing the bounding box and still
nothing. I even removed all the layers except the wms layer to make sure
it wasn't any conflict with the other layers.
I noticed this message in red after I stopped the Tomcat server. It has
only appeared a few times after stopping the server.
"
HTTP: Starting to prepare HTTP requests.
HTTP request: id=2,
http://terraservice.net/OgcMap.ashx?LAYERS=DOQ&REQUEST=GetMap&SERVICE=WMS&FORMAT=image%2Fpng&STYLES=&HEIGHT=600&VERSION=1.1.1&SRS=EPSG:4326&WIDTH=800&BBOX=%2D178%2E217598362366%2C3%2E44738582890752%2C%2D66%2E9692710360024%2C86%2E8836313236801&TRANSPARENT=TRUE&EXCEPTIONS=application/vnd.ogc.se_inimage
HTTP: Before download loop
msHTTPWriteFct(id=2, 396 bytes)
HTTP: After download loop
msHTTPExecuteRequests() timing summary per layer (connect_time +
time_to_first_packet + download_time = total_time in seconds)
Layer 2: 0.062 + 0.703 + 0.062 = 0.827s
msDrawRasterLayerLow(photo): entering.
"
Do you think that it is possible that the url for this layer is somehow
being requested exactly how it appears in this Tomcat message?
From: Brock Anderson <[EMAIL PROTECTED]>
Reply-To: Brock Anderson <[EMAIL PROTECTED]>
To: [email protected]
Subject: Re: [UMN_MAPSERVER-USERS] WMS Layer Problem
Date: Mon, 26 Jun 2006 08:50:19 -0700
I made a WMS request in my browser using the request parameters
specified in your photo layer:
http://terraservice.net/OgcMap.ashx?request=getmap&service=wms&version=1.1.1&width=500&height=500&layers=DOQ&bbox=-170,60,-150,75&srs=EPSG:4326&format=png
The WMS gave an error: "Invalid Lon-Lat coordinates, must specify at
least one (lon,lat) pair correctly; Longitude must be between -170 and
-60 Latitude must be between 15 and 75 "
With a different lat-long bounding box it seems to work. I tested with
bbox=-124,46,-110,52. I think the source WMS server doesn't like your
bounding box.
That's just a guess. I don't know exactly what WMS URLs mapserver is
using to request the photo layers. If you have a way to intercept those
outgoing URLs that should give you enough clues to fix the problem.
Brock
M.L. Jackson wrote:
Hi, I'm new to the Mapserver Listserv. I am having problems displaying
the wms layer on my map. My problem is that I don't see any aerial
shots at all. It is as if the map is being drawn without the layer.
Here is a snippet out of my map file where the wms layer is defined:
LAYER
NAME "photo"
STATUS DEFAULT
TYPE RASTER
MINSCALE 10000
#MAXSCALE 10000
CONNECTIONTYPE WMS
CONNECTION "http://terraservice.net/OgcMap.ashx?";
METADATA
"wms_srs" "EPSG:4326"
"wms_title" "Orthophoto"
"wms_name" "DOQ"
"wms_server_version" "1.1.1"
"wms_format" "image/png"
"wms_layers" "doq"
"wms_group_title" "background"
"wms_onlineresource" "http://terraservice.net/OgcMap.ashx?";
"wms_latlonboundingbox" "-170 -60 15 75"
#"wms_connectiontimeout" "120"
END
PROJECTION
"init=epsg:4326"
END
DEBUG ON
END
BTW, my map extent is -178.21759836236586 18.924781799316406
-66.96927103600244 71.40623535327121. Thanks for your reply.
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