nothing shows up! no image or error?

Randy James rjames57 at YAHOO.COM
Thu Jul 6 16:12:42 EDT 2006


Albert

You also need an projection defined in the map object, not just the
layer object.

Randy

--- Albert Anderson <bart_doggers at YAHOO.COM> wrote:

> Hi,
>  I am still having problem with not seeing anything.  Here is my
> code again for the map file.  
> #This is Richland County Map Server
> NAME "Richland"
> SIZE 800 600
> IMAGECOLOR 255 255 255
> IMAGETYPE JPEG
> SHAPEPATH "/home/mapdata/"
> EXTENT -97.134375 46.044375 -96.534375 46.494375
> WEB
>   TEMPLATE '/var/www/htdocs/richland.html'
>   IMAGEPATH '/var/www/htdocs/tmp'
>   IMAGEURL '/tmp/'
> END
> LAYER
>     NAME "Richland"
>     STATUS default
>     TYPE polygon
>     DATA "RICH_bndy"
>     PROJECTION "init=epsg:26914"
>     END
>     CLASS
>       STYLE
>             COLOR 0 0 0
>       END
>   END
> END
> END
> 
> Is my code right?  Can you help me?
> 
> Thanks,
> Albert
> 
> "Fawcett, David" <David.Fawcett at state.mn.us> wrote:Message    
> Albert, 
>   
>  Projection in MapServer isn't handled with an external  file, like
> in ArcMap.   It is done in the map file.  Take a look  at the
> Mapfile documentation to see how to do  projection. 
>   
> 
> http://mapserver.gis.umn.edu/docs/reference/mapfile/projection/view
>   
>  You  need to define a projection block in the MAP block of the map
> file, this is set  to the projection that you want your data output
> in.  
>   
>  You  would then define a projection block in each layer, this is
> set to the  projection that the original data for that layer is in.
>  It is easiest to  use epsg codes, look at example 2 in the link
> above.  
>   
>  The  epsg code for UTM zone 14N nad83 is 26914  and 4326 can be
> used for you  lat/long data.
>   
>  David.
>     
>    -----Original Message-----
> From: Albert Anderson    [mailto:bart_doggers at yahoo.com] 
> Sent: Wednesday, July 05, 2006    11:58 AM
> To: Fawcett, David;    MAPSERVER-USERS at lists.umn.edu
> Subject: RE: [UMN_MAPSERVER-USERS]    nothing shows up! no image or
> error?
> 
> 
> Hi,
> 
>  I    was using a projection file UTM Zone 14n Nad_83. Then I
> switch to an    unprojective file and I saw my data show up.  What
> would be the first    best step for setting a projection    file?
> 
> Thanks
> Albert
> 
> "Fawcett, David"    <David.Fawcett at state.mn.us> wrote:            
> You may want to take a look at your extent.   
>       
>      Do      you really intend to show a primarily empty stretch of
> the northern Atlantic      Ocean (apologies to Canary
> Islanders...)?  
>       
>      You are telling MapServer that your map area is contained
> within a      box from 50 deg. west longitude to 10 deg. west
> longitude and 20 to 90      degrees north latitude.  If the name of
> your mapfile relates to the      data, I am guessing that Richland
> County isn't in this box.       
>       
>      Use ogrinfo or a desktop GIS app to look at the extent of your
>      data.  Also, the extent needs to be in the units of the
> spatial      reference system that your data is in.  
>       
>      David.
>             
>        -----Original Message-----
> From: UMN        MapServer Users List
> [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf        Of Albert
> Anderson
> Sent: Wednesday, July 05, 2006 10:10        AM
> To: MAPSERVER-USERS at LISTS.UMN.EDU
> Subject:        [UMN_MAPSERVER-USERS] nothing shows up! no image or
>        error?
> 
> 
> Hi,
> 
>  I am making my own map        file.  It looks all right but when I
> click the button it doesnt show        an image or any kind of
> errors.  
> 
> Here is my map        code.
> #This is Richland County Map Server
> NAME "Richland"
> SIZE        100 100
> IMAGECOLOR 255 255 255
> IMAGETYPE JPEG
> SHAPEPATH        "/home/mapdata/"
> EXTENT -50.00 20.00 -10.00 90.00
> WEB
>          TEMPLATE '/var/www/htdocs/richland.html'
>   IMAGEPATH        '/var/www/htdocs/tmp'
>   IMAGEURL        '/tmp/'
> END
> LAYER
>     NAME        "Richland"
>     STATUS default
>     TYPE        polygon
>     DATA "RICH_bndy"
>            CLASS
>               STYLE
>                       COLOR 0 0 0
>               END
>     END
> END
> END
> 
> here is my html        code
> <html>
> <head><title>Richland County        MapServer</title></head>
> <body>
>   <form        method=post action="/cgi-bin/mapserv">
>     <input        type="submit" value="Click Me"
>     <input        type="hidden"        name="map"
>                      value="/home/mapdata/richland.map">
>     <input        type="hidden"        name="map_web_imagepath"
>                      value="/var/www/htdocs/tmp/">
> 
>   </form>
>          <table border="1" width="400" height="400">
>          <tr>
>   <td align="center" valign="top">
>          <IMG SRC="[img]" width="400" height="400" border="1">
>          </td>
>   </tr>
>          </table>
> </body>
> </html>
> 
>  I really        dont know whats could be wrong.  Maybe the extent
> of it?  Can        anyone help me?
> 
> Thanks,
> Albert
>        
>        
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