[Geomoose-users] GM2 and scale bar peculiarities

[Dan Little]

Johan, this is a known issue.  It's a combination of MapServer (which doesn't absolutely place the Scalebar) and OpenLayers, which "buffers" the map image 100+or-so pixels.

This will get addressed in 2.2.


----- Original Message ----
> From: Johan Forsman <Johan.Forsman at LA.GOV>
> To: "geomoose-users at lists.sourceforge.net" <geomoose-users at lists.sourceforge.net>
> Sent: Thu, October 8, 2009 9:22:04 AM
> Subject: [Geomoose-users] GM2 and scale bar peculiarities
> 
> Hello All:
> 
> I have a rather confusing situation where the scale bar is not showing up on my 
> maps.
> 
> Initially I presumed it was due to PEBCAK since that's typically the issue at my 
> desk, but after closer inspection it turns out the scale bar is actually there, 
> it's just drawn well outside the viewport! I can verify that the scalebar is 
> drawn by using the URL to the scalebar directly, and I can verify that it is 
> outside the viewport by panning the image. Click and drag up-and-right and the 
> scalebar appears eventually, until I release the mouse button and the image is 
> redrawn.
> 
> I reference the scalebar via its own mapfile that contains the following:
> 
> ----------------------------------------------
> MAP
>     NAME 'scalebar'
>     SIZE 800 650
>     STATUS ON
>     EXTENT  401488 3197075 909651 3653904
>       UNITS METERS
>     INCLUDE "../../geomoose_globals.map"
>     WEB
>         INCLUDE "../../temp_directory.map"
>     END
>     LEGEND
>         STATUS ON
>         LABEL
>         TYPE TRUETYPE
>         FONT arial
>         SIZE 8
>         COLOR 0 0 0
>     END        
>     END    
> 
> SCALEBAR
>     STATUS embed
>     POSITION ll
>     POSTLABELCACHE TRUE
>     COLOR 0 0 0
>     OUTLINECOLOR 166 202 240
>     TRANSPARENT off
>     UNITS miles
>     INTERVALS 4
>     SIZE 200 6
>     STYLE 0
>     LABEL
>       SIZE small
>       COLOR 0 0 0
>       ANTIALIAS TRUE
>     END #label
> END #scalebar
> END #Map
> ----------------------------------------------
> 
> In the above map file, if I omit the LEGEND block, the image returned is blank 
> but there are no errors reported. Is this normal? Also, the scalebar STATUS must 
> be EMBED or the image is blank.
> 
> In the mapbook I have the following mapsource defined:
> 
>     
>         ./sdwp/base/scalebar.map
>         
>     
> 
> And in the Catalog:
> 
>     
> 
> 
> All my mapfiles have the size set to 800x650, but the URL contains a much larger 
> size spec (1401x954):
> 
> http://geoview/cgi-bin/mapserv.exe?map=%2Fms4w%2Fapps%2Fgeomoose2%2Fmaps%2Fsdwp%2Fbase%2Fscalebar.map&mode=map&layers=all&mapext=95374.46159638558+3044474.176204819+1215235.5384036144+3807034.823795181&imgext=95374.46159638558+3044474.176204819+1215235.5384036144+3807034.823795181&map_size=1401+954&imgx=700.5&imgy=477&imgxy=1401+954
> 
> Is the image-size difference the issue? If so, how can I correct it?
> 
> I have a feeling I am overlooking something embarrassingly simple.
> 
> Thanks for your consideration,
> /Johan.
> 
> 
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