GetFeatureInfo on ESRI binary grid

Frans Knibbe frans at GEODAN.NL
Mon Sep 20 10:22:39 EDT 2004


Jim wrote:

>For raster layers you need the file extension too.
>DATA "E:\data\elevation.tif"  or whatever it is.
>
>
Are you sure? An ArcInfo grid is not a single file, but a directory
containing several files. I have just tried using a filename
(E:\data\elevation\w001001.adf), but I got the same results: GetMap
works, but GetFeatureInfo doesn't. If I should use a filename in stead
of the directoryname, which of the files should I use?

>-jim
>
>Jim Burnett
>Visual Basic GIS Project Leader
>http://www.visualbasicgis.com/
>http://www.gisforums.com/
>
>
>----- Original Message -----
>From: "Frans Knibbe" <frans at GEODAN.NL>
>To: <MAPSERVER-USERS at LISTS.UMN.EDU>
>Sent: Monday, September 20, 2004 9:11 AM
>Subject: [UMN_MAPSERVER-USERS] GetFeatureInfo on ESRI binary grid
>
>
>
>
>>Hello people,
>>
>>I am using mapserver 4.2.3 with GDAL and I have a problem. Maybe someone
>>can help? I am trying to get the GetFeatureInfo request to work on an
>>ArcInfo grid. The grid displays well. Here is a part of the map file in
>>its current shape:
>>
>>  LAYER
>>    NAME "elevation"
>>    DATA "E:\data\elevation"
>>    TYPE RASTER
>>  END
>>
>>  LAYER
>>    STATUS ON
>>    NAME "elevation_query"
>>    DATA "E:\data\elevation"
>>    TYPE QUERY
>>    DUMP TRUE
>>    TEMPLATE template.htm
>>  END
>>
>>As you can see, I have defined two layers, one for display and one for
>>query. This is because I could not get the "type raster" layer to become
>>queryable. When I request the capabilities, the second layer is reported
>>to be queryable, but the first not. However, a getFeatureInfo request
>>results in the following error:
>>
>><ServiceException>
>> msSHPOpenFile(): Unable to access file. (E:\data\elevation)
>> msSHPOpenFile(): Unable to access file. (E:\data\elevation)
>> </ServiceException>
>>
>>Is there something I am obviously doing wrong? Is there another raster
>>format that might work better?
>>
>>Thanks in advance,
>>
>>Frans
>>
>>
>
>
>
>



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