[mapserver-users] my overview map is dark, what is going on? Is it because of map server (I created), or the client code?
JK Chen
jk.chen at sdl.usu.edu
Fri Aug 26 10:52:25 PDT 2011
Hi,
I made my own map using the Map Server and client with OpenLayers. At zoom out levels, my Overview map becomes dark, however, the box in there is draggable. But, how come it is dark? How to fix that? Root cause?
Sorry, I'm very new to the map space. So, pardon me for the questions.
I included these in this email thread.
* Map file, is listed end of the email.
* Here is the screen shot I got. Attached.
* OpenLayers code used to create the map is also listed here.
The screenshot can be accessed here too. http://osgeo-org.1803224.n2.nabble.com/file/n6729648/Dark_Overview_Map.jpg
OpenLayers code:
this.wms_basic_layer = new OpenLayers.Layer.WMS(
wms.wms_layer_display_name,
wms.wms_url,
{layers: wms.wms_layer_name},
{wrapDateLine: true});
this.map.addLayer(this.wms_basic_layer)
Map file:
MAP # a Map file starts with MAP keyword #CONFIG "MS_ERRORFILE" "c:\dev\ms_error.txt"
#DEBUG 5
IMAGETYPE jpeg
EXTENT -180 -90 180 90
SIZE 256 256
SHAPEPATH "."
IMAGECOLOR 255 255 255
CONFIG "PROJ_LIB" "C:/Program Files (x86)/Apache Software Foundation/Apache2.2/cgi-bin/"
PROJECTION
"init=epsg:4326"
END
WEB
MINSCALEDENOM 1000
MAXSCALEDENOM 7000000
METADATA
"wms_title" "WMS Server"
"wms_abstract" "Vantage WMS Server"
END
END
LAYER #basemap
NAME basemap # layer name exposted to URL
EXTENT -180 -90 180 90 # cover the entire world
TILEINDEX "baseGN" # referring to shape file
SHAPEPAH\TITLEIDEX.shp
TILEITEM "location" # always "location"
STATUS ON
TYPE RASTER # it's raster image
METADATA
"wms_title" "basemap"
END
END
END
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