[mapserver-users] Not sure how to debug or fix -image not being produced due to msCalculateScale(): General error message

[Stephen Woodbridge]

Mark,

Could this be a timeout issue?
What happens if the user right clicks on the pink tile in FF and selects 
View Image? or Reload Image?

Do you have some kind of max memory limit or ulimit set?
Or a long running process killer?

-Steve W

On 6/4/2012 12:14 PM, Mark Volz wrote:
> Hello,
> I received a report that a GeoMOOSE / Mapserver web mapping application
> http://geomoose.lyonco.org/MurrayMoose/
> <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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