[mapserver-users] dynamic point with reference map

[Stephen Woodbridge]

Chuck,

I would guess the that is the minimum size of a png image that is a
solid color because of png compression. Have tryed run shp2img to see
what you get?

-Steve W.

Chuck Bokath wrote:
> 
> Steve,
> 
> Thanks, that is great information. The problem I have when I try and create
> a map, is that it ends up with 114 bytes.
> I am not sure what is I am doing wrong to get the 114 byte map image. The
> reference image is fine.
> 
> So it seems that I will not need a reference map, since I do not want an
> interactive browser based application--I am strictly looking for a backend
> engine that does not generate html but only png images with points, driven
> by lat/long coordinates.
> 
> Now the question is, why is my map 114 bytes? The log says normal execution,
> everything is AOK,
> 
> Here is  the map file, any suggestions?
> 
> MAP
> STATUS ON
> SIZE 600 600
> UNITS DD
> EXTENT -83.2 29.500 -81.2500 31.5000
> SYMBOLSET /export/home/bokath_c/gis/mapserver_3.5/symbols/examples.sym
> IMAGECOLOR 50 0 255
> IMAGETYPE png
> NAME ATL
> 
> WEB
> TEMPLATE "Atlanta.html"
> IMAGEPATH "/tmp/"
> IMAGEURL "/tmp"
> LOG "./atl.log"
> END
> 
> REFERENCE
> STATUS OFF
> IMAGE "/export/home/bokath_c/develop/webserver/cgi-bin/Atlanta.png"
> SIZE 600 600
> END
> 
> LAYER
>   NAME properties
>   TYPE ANNOTATION
>   STATUS DEFAULT
>   CLASS
>     NAME "user-defined properties"
>     TEXT "House"
>     SYMBOL 26
>     COLOR 0 0 0
>     LABEL
>       TYPE TRUETYPE
>       ANTIALIAS TRUE
>       SIZE 8
>       POSITION AUTO
>       COLOR 0 0 0
>       BACKGROUNDCOLOR 255 255 204
>     END
>   END
> END
> 
> END
> 
> -----Original Message-----
> From: Steve Lime [mailto:steve.lime at dnr.state.mn.us]
> Sent: Monday, March 11, 2002 6:07 PM
> To: chuck.bokath at air2web.com; mapserver-users at lists.gis.umn.edu
> Subject: Re: [mapserver-users] dynamic point with reference map
> 
> You can't add points to a reference map. You can create a map that looks
> like
> a reference map with a normal call to the mapserver (mode=map). I think
> there
> may be some confusion as to what a reference map is or isn't. A
> reference map
> is a component of a web app- period.
> 
> Steve
> 
> Stephen Lime
> Data & Applications Manager
> 
> Minnesota DNR
> 500 Lafayette Road
> St. Paul, MN 55155
> 651-297-2937
> 
> >>> Chuck Bokath <chuck.bokath at air2web.com> 03/11/02 03:48PM >>>
> 
> Hello,
> 
> Can I use a reference map to add points on top of?
> 
> In the cgi world, should I use mode=reference? Such a cgi request would
> look
> something like
> http://someserver/cgi-bin/mapserv?mode=reference&map_webuser_feature=new&map
> 
> _webuser_feature_points=-84.33333+33.333333+map_webuser_feature_text=My+Hous
> e!&...
> 
> Any help would be greatly appreciated.
> 
> br
> chuck