WMS Layer Problem

Mon Jun 26 09:45:31 PDT 2006

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 <banders at REFRACTIONS.NET>
>> Reply-To: Brock Anderson <banders at REFRACTIONS.NET>
>> To: MAPSERVER-USERS at LISTS.UMN.EDU
>> 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 <banders at REFRACTIONS.NET>
>>>> Reply-To: Brock Anderson <banders at REFRACTIONS.NET>
>>>> To: MAPSERVER-USERS at LISTS.UMN.EDU
>>>> 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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>>>
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>
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