Blank image being created in MS 4.6.0

[Brent Fraser]

Mike,

   Well, this is getting interesting.  In theory, your original map file
should work.  Even though the coordinates you give are pixels, not world
coordinates, MapServer doesn't know that.  I tried the following map file
with 4.6:

#epsg:32611
NAME AUG21234542.map
SIZE 400 400
EXTENT 0 0 576 432
WEB
 TEMPLATE Template.html
 IMAGEPATH ""
 IMAGEURL ""
END

LAYER
 TYPE RASTER
 STATUS DEFAULT
 DATA "test.jpg"
 PROJECTION
  "init=epsg:32611"
 END
# TRANSPARENCY 100
END

END

This actually causes mapserv.exe to crash!  And un-commenting the
TRANSPARENCY 100 stops the crashing.  shp2img doesn't crash, but it spits
out a GIF stream to stdout even though I used "-o test.gif" for an output
file.

I'll have to step through this in the debugger....

Brent Fraser
GeoAnalytic Inc.
Calgary, Alberta, Canada


----- Original Message ----- 
From: "Mike Boos" <mboos at AUGSIGNALS.COM>
To: <MAPSERVER-USERS at LISTS.UMN.EDU>
Sent: Thursday, August 25, 2005 12:41 PM
Subject: Re: [UMN_MAPSERVER-USERS] Blank image being created in MS 4.6.0


> This is the output I get from gdalinfo:
> Driver: JPEG/JPEG JFIF
> Size is 576, 432
> Coordinate System is `'
> Corner Coordinates:
> Upper Left  (    0.0,    0.0)
> Lower Left  (    0.0,  432.0)
> Upper Right (  576.0,    0.0)
> Lower Right (  576.0,  432.0)
> Center      (  288.0,  216.0)
> Band 1 Block=576x1 Type=Byte, ColorInterp=Red
> Band 2 Block=576x1 Type=Byte, ColorInterp=Green
> Band 3 Block=576x1 Type=Byte, ColorInterp=Blue
>
> I tried adding projection information to the map, no result.
>
> Mike
>
> Brent Fraser wrote:
>
> >Mike,
> >
> >  You don't have a PROJECTION definition for your map (the target image
to
> >be created by mapserver).  And your EXTENT coordinates look like pixel
> >values instead of world coordinates (e.g. meters or degrees).
> >
> >  Try changing
> >EXTENT 0 0 576 432
> >  to
> >EXTENT 300000 5000000 700000 6000000
> >  or better yet, get the world extents of your input jpg file by using:
> >        gdalinfo  C:\inetpub\ftproot\input_images\AUG162454635.jpg
> >
> >
> >You might want to add
> >
> >PROJECTION
> >  "init=epsg:32611"
> >END
> >
> >after the EXTENT entry as well.
> >
> >Brent Fraser
> >GeoAnalytic Inc.
> >Calgary, Alberta, Canada
> >
> >
> >----- Original Message ----- 
> >From: "Mike Boos" <mboos at AUGSIGNALS.COM>
> >To: <MAPSERVER-USERS at LISTS.UMN.EDU>
> >Sent: Thursday, August 25, 2005 12:17 PM
> >Subject: Re: [UMN_MAPSERVER-USERS] Blank image being created in MS 4.6.0
> >
> >
> >
> >
> >>Thanks, but neither changing the colour nor the transparency did
anything.
> >>
> >>Mike
> >>
> >>Hydock,Shaun T. wrote:
> >>
> >>
> >>
> >>>I ran into something similar, adding a class to set the color in the
> >>>layer generated a viewable image for me:
> >>>
> >>>   CLASS
> >>>     COLOR 0 100 200
> >>>   END
> >>>
> >>>Good luck!
> >>>
> >>>Shaun
> >>>
> >>>-----Original Message-----
> >>>From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU]
On
> >>>Behalf Of Mike Boos
> >>>Sent: Thursday, August 25, 2005 2:02 PM
> >>>To: MAPSERVER-USERS at LISTS.UMN.EDU
> >>>Subject: [UMN_MAPSERVER-USERS] Blank image being created in MS 4.6.0
> >>>
> >>>Hello
> >>>
> >>>I'm trying to upgrade our map server from version 4.1 to 4.6.0 and am
> >>>facing some hurdles. The map files work fine in version 4.1, but are
all
> >>>
> >>>generating blank white images for me in 4.6.0. From reading the mailing
> >>>lists and the documentation, I can't seem to find what's wrong with the
> >>>map files. Here's an example:
> >>>
> >>>#epsg:32611
> >>>NAME AUG21234542.map
> >>>SIZE 400 400
> >>>EXTENT 0 0 576 432
> >>>WEB
> >>>TEMPLATE ../mapServerTemplateVis.html
> >>>IMAGEPATH ""
> >>>IMAGEURL ""
> >>>END
> >>>LAYER
> >>>TYPE RASTER
> >>>STATUS DEFAULT
> >>>DATA "C:\inetpub\ftproot\input_images\AUG162454635.jpg"
> >>>PROJECTION
> >>>"init=epsg:32611"
> >>>END
> >>>TRANSPARENCY 100
> >>>END
> >>>END
> >>>
> >>>Does anyone know what changes I need to make to have the image appear
on
> >>>
> >>>my map?
> >>>
> >>>Thanks
> >>>Mike Boos
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >
> >
> >
> >
> >