Querying Tile Index

[Xiaopeng Xiong]

Hello everyone,

 

 

I am new to the list and just start using Mapserver. I met some problem when I tried to do query a tile index for a set of geotiff image files. I have tried to google the answer but got no clue. So I really appreciate if someone here can help me out, or give me a concrete example.

 

My problem is as follows:

 

I have an index for image tiles (geo tiff files). The index includes an attribute "path" which is the source path of individual .tiff file. Now I can successfully display the .tiff files on Mapserver. What I need to do now is that when a user clicks the map, the mapserver will return the "path" information for the tile .tiff image that is clicked. I set the mode to "indexquery", but it always returned me zero record. I believe there is something I have missed but not sure what it is.

 

The mapfile config is as follows: 

 

LAYER

  NAME davisphoto

  TYPE raster

  STATUS on

  DEBUG on

  TILEINDEX /home/danpatch/b/pinnais/public-web/data/stateplane_east/Davis_photo_index 

  TILEITEM "path"

#  MAXSCALE 80000.0

     CLASS

        Name 'Davis Photo'

     END  # CLASS

PROJECTION

  "proj=tmerc"

  "lat_0=37.500000000"

  "lon_0=-85.666666667"

  "k=0.999967"

  "x_0=100000.000"

  "y_0=250000.000"

  "ellps=GRS80"

  "datum=NAD83"

  "units=ft"

  "no_defs"  

END 

 

   HEADER '/home/danpatch/b/pinnais/public-web/orthoweb/querytemplate/davis_header.html'

   FOOTER '/home/danpatch/b/pinnais/public-web/orthoweb/querytemplate/davis_footer.html'

   TEMPLATE "/home/danpatch/b/pinnais/public-web/orthoweb/querytemplate/davis_query.html"

END  # LAYER

 

 

I wonder if someone can help me. Highly appreciated.

 

 

Thanks,

Xiaopeng
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