gdalindex question

[Simpson]

Try commenting out the CLASS definition...


-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU]On
Behalf Of Dylan Beaudette
Sent: Monday, October 04, 2004 3:59 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] gdalindex question


Not many people out there with this name!

Nice to meet you.

...well i tried your suggestions, but no change in the output.

here is my layer defs now:
---------------------------
LAYER
 NAME "DOQQ_index"
 TYPE RASTER
 TILEINDEX
"/home/dylan/public_html/mapserver/mapunit/data/imagery/doqq/tiled/doqq_inde
x.shp"
(line wrapped by email client)

 TILEITEM "location"

 #DATA "imagery/doqq/tiled/o38122f1nw.tif.temp.tiff"
 STATUS DEFAULT

 #ignore black pixels (treat as transparent)
 OFFSITE 0 0 0


 #render the rest of the pixel values!
 CLASS
  NAME "DOQQ"
 END
END
------------------------------

not sure what to try next, but it must be something simple!

thanks,

Dylan


On Monday 04 October 2004 01:50 pm, Dylan Keon wrote:
> Hi Dylan :-)
>
> After upgrading to 4.2.x or so, I found I had to use absolute paths for
> tileindexes.  That is, SHAPEPATH wouldn't work with my TILEINDEX
> declaration.  So, try:
>
>    TILEINDEX "/full/path/to/imagery/doqq/tiled/doqq_index.shp"
>
> and see if that makes a difference.  Also, are you sure it's TILEITEM
> "Location" instead of "location"?  It may be case sensitive, I can't
> remember.
>
> --Dylan
>
> On 10/04/2004 01:45 PM, Dylan Beaudette wrote:
> > Ed-
> >
> > Thanks for  the quick reply!
> >
> > The mapserver output looks a litte funny because I am displaying the
tile
> > index as a polygon layer, so that I know that it actually exists, and is
> > projected corectly. The labels do look like strange file names, but they
> > are indeed correct...
> >
> > when i attempt to access the rasters individually:
> > DATA "imagery/doqq/tiled/o38122f1nw.tif.temp.tiff"
> >
> > ...it works fine:
> > http://169.237.35.250/~dylan/temp/tile_index_with_1_raster.jpg
> >
> > ...but the rasters are not loaded via the TILEINDEX method.
> >
> > here is the updated layer definition (thanks for the OFFSITE idea!!)
> > ----------------snip------------------
> > LAYER
> >  NAME "DOQQ_index"
> >  TYPE RASTER
> >  TILEINDEX "imagery/doqq/tiled/doqq_index.shp"
> >  TILEITEM "Location"
> >
> >  #DATA "imagery/doqq/tiled/o38122f1nw.tif.temp.tiff"
> >  STATUS DEFAULT
> >
> >  #ignore black pixels (treat as transparent)
> >  OFFSITE 0 0 0
> >
> >
> >  #render the rest of the pixel values!
> >  CLASS
> >   NAME "DOQQ"
> >  END
> > END
> >
> > ----------------snip------------------
> >
> > ...still no success with the rasters this way...
> >
> > any ideas?
> >
> > thanks again!
> >
> > Dylan
> >
> > On Monday 04 October 2004 11:37 am, Ed McNierney wrote:
> >>Dylan -
> >>
> >>Thanks for asking a well-documented question!
> >>
> >>Your MapServer output looks like you're using the tile index layer as a
> >>POLYGON layer, and doesn't seem to match up with the map file fragment
> >> you post (i.e. there's no TYPE POLYGON layer with labels there).  The
> >> filenames that are appearing as labels look a little funny - are you
> >> sure those are the correct filenames?
> >>
> >>Also, you're causing all black pixels to be displayed as white, which
> >> won't "remove" them.  You may want to use the OFFSITE statement to
cause
> >> black pixels to be transparent, letting overlapped data show through.
> >>
> >>      - Ed
> >>
> >>Ed McNierney
> >>President and Chief Mapmaker
> >>TopoZone.com
> >>
> >>At 02:18 PM 10/4/2004, Dylan Beaudette wrote:
> >>>Greetings!
> >>>
> >>>I have a pile of DOQQ images  that i would like to use with my map, and
> >>>wanted to use gdalindex to setup an efficient way for these images to
be
> >>>loaded.
> >>>
> >>>note that everything is in the same projection.
> >>>
> >>>after running:
> >>>gdaltindex doqq_index.shp *.tiff
> >>>
> >>>i am left with a shapfile with entries for all of the images.... seems
> >>> ok.
> >>>
> >>>...looking at the output in QGIS:
> >>>http://169.237.35.250/~dylan/temp/gdalindex_problems.jpg
> >>>...all seems fine (except for a few mssing images)
> >>>
> >>>however mapserver is not rendering the tiff files based on the index:
> >>>http://169.237.35.250/~dylan/temp/tile_index.png
> >>>
> >>>here is my layer defs in my map file:
> >>>----------------------------snip----------------------------
> >>>LAYER
> >>> NAME "DOQQ_index"
> >>> TYPE RASTER
> >>> TILEINDEX "imagery/doqq/tiled/doqq_index.shp"
> >>> TILEITEM "Location"
> >>>
> >>> #DATA "imagery/doqq/tiled/o38122f1nw.tif.temp.tiff"
> >>> STATUS DEFAULT
> >>>
> >>> #remove the black (no_data) pixels!
> >>> CLASSITEM "[pixel]"
> >>> CLASS
> >>>  EXPRESSION ([pixel] == 0 )
> >>>  COLOR 255 255 255
> >>> END
> >>>
> >>> #render the rest of the pixel values!
> >>> CLASS
> >>>  NAME "DOQQ"
> >>> END
> >>>END
> >>>----------------------------snip----------------------------
> >>>
> >>>
> >>>any ideas>?
> >>>
> >>>thanks in advance!!
> >>>
> >>>Dylan Beaudette
> >>>Soil Science Grad Group
> >>>University of California at Davis