Hello, I received a report that a GeoMOOSE / Mapserver web mapping application http://geomoose.lyonco.org/MurrayMoose/ is creating pink tiles when zoomed out. I found out that the user has a very large monitor, so I thought that I may have forgot to set the MAP MAXSIZE parameter. That was not the issue.
Next, The user then reported that the pink screen only was present when boundary>municipal layer was turned on. This particular layer is part of a mapfile that contains several layers. All of the other layers are working fine. Also when he zooms into the map the layer appears on his application as expected. So I thought that the issue has to be with the layers* within the mapfile. *The municipal boundary layer in GeoMOOSE is tied to the Townships and CityLimits layer in a single map file. The layer file itself is a generic template that I have been using for several different applications without complaint. I also tested the application on my computer using a variety of browsers including IE8, which is the browser the user reported that he was having trouble with the pink screens. I also adjusted the browser size to make it the requested image larger, zoomed in and out, and I have not had any trouble. I included a part of my map file as well as a log file from what I think is a unsuccessful request and a successful request from the same user. MAP FILE SNIPPET: LAYER #townships NAME 'Townships' DATA 'Murray/MurrTwpMCC' STATUS ON TYPE POLYGON LABELMINSCALEDENOM 10000 CLASS NAME 'Townships' TEXT ([TWPNAME] TWP) STYLE SYMBOL 'countydashed' SIZE 3 OUTLINECOLOR 0 50 0 COLOR -1 -1 -1 END #style LABEL ANTIALIAS TRUE TYPE TRUETYPE FONT vera_sans MAXSIZE 9 SIZE 8 MINSIZE 6 ANTIALIAS TRUE COLOR 10 10 10 OUTLINECOLOR 220 220 220 OUTLINEWIDTH 3 BUFFER 2 END #label END #class END #layer LAYER NAME 'CityLimits' TYPE POLYGON DATA 'Murray/MurrMuniMCC' STATUS ON LABELITEM 'NAME_' CLASS NAME 'City Limits' STYLE SYMBOL 'dashed2' SIZE 3 OUTLINECOLOR 226 208 84 COLOR -1 -1 -1 END #STYLE LABEL ANTIALIAS TRUE TYPE TRUETYPE PRIORITY 5 FONT vera_sans SIZE 8 ANTIALIAS TRUE COLOR 113 53 57 OUTLINECOLOR 255 232 100 BUFFER 2 MINFEATURESIZE auto PARTIALS FALSE END #Label END #class END #layer LOG FILE: [Mon Jun 04 10:43:59 2012].247000 CGI Request 1 on process 780 [Mon Jun 04 10:43:59 2012].263000 msDrawMap(): Layer 0 (lakes), 0.000s [Mon Jun 04 10:43:59 2012].294000 msDrawMap(): Layer 1 (Parks), 0.031s [Mon Jun 04 10:43:59 2012].294000 msDrawMap(): Layer 2 (Ditches), 0.000s [Mon Jun 04 10:43:59 2012].294000 msDrawMap(): Layer 3 (Townships), 0.000s [Mon Jun 04 10:43:59 2012].294000 msDrawMap(): Layer 4 (CityLimits), 0.000s [Mon Jun 04 10:43:59 2012].294000 msDrawMap(): Layer 5 (sections), 0.000s [Mon Jun 04 10:43:59 2012].310000 msDrawMap(): Layer 6 (parcels), 0.016s [Mon Jun 04 10:43:59 2012].310000 msDrawMap(): Layer 7 (roads), 0.000s [Mon Jun 04 10:43:59 2012].310000 msDrawMap(): Layer 8 (roadsanno), 0.000s [Mon Jun 04 10:43:59 2012].310000 msDrawMap(): Drawing Label Cache, 0.000s [Mon Jun 04 10:43:59 2012].310000 msDrawMap() total time: 0.063s [Mon Jun 04 10:43:59 2012].669000 msSaveImage() total time: 0.359s [Mon Jun 04 10:43:59 2012].669000 mapserv request processing time (loadmap not incl.): 0.422s [Mon Jun 04 10:43:59 2012].669000 msFreeMap(): freeing map at 01516108. [Mon Jun 04 10:44:01 2012].138000 msCalculateScale(): General error message. Invalid image width or height. [Mon Jun 04 10:44:01 2012].138000 msPrepareImage(): General error message. Image dimensions not specified. [Mon Jun 04 10:44:01 2012].138000 msDrawMap(): Image handling error. Unable to initialize image. [Mon Jun 04 10:44:01 2012].185000 msFreeMap(): freeing map at 01D4BBF8. [Mon Jun 04 10:44:01 2012].325000 CGI Request 1 on process 7556 [Mon Jun 04 10:44:01 2012].325000 msDrawMap(): Layer 0 (lakes), 0.000s [Mon Jun 04 10:44:01 2012].325000 msDrawMap(): Layer 1 (Parks), 0.000s [Mon Jun 04 10:44:01 2012].325000 msDrawMap(): Layer 2 (Ditches), 0.000s [Mon Jun 04 10:44:01 2012].325000 msDrawMap(): Layer 3 (Townships), 0.000s [Mon Jun 04 10:44:01 2012].325000 msDrawMap(): Layer 4 (CityLimits), 0.000s [Mon Jun 04 10:44:01 2012].325000 msDrawMap(): Layer 5 (sections), 0.000s [Mon Jun 04 10:44:01 2012].325000 msDrawMap(): Layer 6 (parcels), 0.000s [Mon Jun 04 10:44:01 2012].325000 msDrawMap(): Layer 7 (roads), 0.000s [Mon Jun 04 10:44:01 2012].325000 msDrawMap(): Layer 8 (roadsanno), 0.000s [Mon Jun 04 10:44:01 2012].341000 msDrawMap(): Drawing Label Cache, 0.016s [Mon Jun 04 10:44:01 2012].341000 msDrawMap() total time: 0.016s [Mon Jun 04 10:44:01 2012].341000 msSaveImage() total time: 0.000s [Mon Jun 04 10:44:01 2012].341000 mapserv request processing time (loadmap not incl.): 0.016s [Mon Jun 04 10:44:01 2012].341000 msFreeMap(): freeing map at 01516240. Thanks for all the help Mark Volz GIS Specialist
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