[Mapserver-users] Image indexing problems

[Rene Teniere]

Hi all,

I've been having a re-occurring problem with an indexed shapefile of
images. 

Scenario: Shapefile contains a series of 416 polygons, each
representing an image that is indexed through a field named images in
the table. In the mapfile, TILEINDEX imgindex.shp TILEITEM images 

Problem: If you zoom in after a certain point, the main map image will
not process, and you cannot access the index at all until you delete the
temporary internet files and re-load the site. This happens in both
straight php/mapscript and Chameleon. Has anyone run into this before??

I am running PHP v4.3.4, PHP/MapScript v4.1, MapServer v4.0, Chameleon
v1.1a, IIS v5.0, Win2k.

Check it out:
http://nfis.gov.ns.ca/gmap/juan/index.phtml 

Rene

MAP
  NAME "Hurricane Juan Page"
  STATUS ON
  EXTENT 381053 4915490 573294 5059550 
  SIZE 400 300 
  SHAPEPATH "e:/nfis_data/juan_data/"
  SYMBOLSET "e:/www/chameleon/etc/symbols.sym"
  FONTSET "e:/www/chameleon/etc/fonts.txt"
  IMAGECOLOR 255 255 255
  UNITS METERS
  RESOLUTION 90.714286
  WEB
    IMAGEPATH "e:/tmp/"
    IMAGEURL "/tmp/"
  END
  QUERYMAP
    STATUS ON
    SIZE -1 -1 
    COLOR 255 255 0
    STYLE HILITE
  END
  PROJECTION
    "init=epsg:2038" 
    #UTM Zone 20 NAD83 for Nova Scotia
  END
  SCALEBAR
    STATUS ON
    COLOR 255 255 255
    OUTLINECOLOR 0 0 0
    BACKGROUNDCOLOR 0 0 0
    IMAGECOLOR 255 255 255
    UNITS KILOMETERS
    INTERVALS 4
    SIZE 200 5 
    STYLE 0
    POSITION LL
    LABEL
      TYPE BITMAP
      SIZE SMALL
      OFFSET 0 0 
      BUFFER 0
      MINDISTANCE -1
      MINFEATURESIZE -1
      COLOR 0 0 0
      PARTIALS TRUE
      FORCE FALSE
    END
  END
  OUTPUTFORMAT
    NAME "PNG24"
    MIMETYPE "image/png"
    DRIVER "GD/PNG"
    EXTENSION "png"
    IMAGEMODE RGB
  END
  SYMBOL
    NAME "circle"
    TYPE ellipse
    FILLED true
    POINTS
      1 1
    END
  END
  SYMBOL
    NAME "line1"
    TYPE ellipse
    FILLED true
    POINTS
      1 1
    END
  END
  SYMBOL
    NAME "dash1"
    TYPE ellipse
    FILLED true
    POINTS
      1 1
    END
    STYLE
      10 5 5 10
    END
  END
  SYMBOL
    NAME "dash2"
    TYPE ellipse
    FILLED true
    POINTS
      1 1
    END
    STYLE
      10 10 10 10
    END
  END
  SYMBOL
    NAME "dash3"
    TYPE ellipse
    FILLED true
    POINTS
       1 1
    END
    STYLE
      6 4 6 4
    END
  END
  SYMBOL
    NAME "dot1"
    TYPE ellipse
    FILLED true
    POINTS
      1 1
    END
    STYLE
      1 2 1 2
    END
  END
  SYMBOL
    NAME 'hatch'
    TYPE vector
    POINTS
      3 3 3 3 
    END
  END
  LAYER
    NAME "Images"
    GROUP "Imagery"
    STATUS ON
    TYPE RASTER
    MAXSCALE 30000
    TILEINDEX "e:/nfis_data/juan_data/imgindex.shp"
    TILEITEM "image"
  END
  LAYER
    NAME "orthov4.ecw"
    GROUP "Imagery"
    STATUS ON
    DATA "images/orthov4.ecw"
    TYPE RASTER
    MINSCALE 30000
    MAXSCALE 75000
  END
  LAYER
    NAME "orthov3.ecw"
    GROUP "Imagery"
    STATUS ON
    DATA "images/orthov3.ecw"
    TYPE RASTER
    MINSCALE 75000
    MAXSCALE 150000
  END
  LAYER
    NAME "orthov2.ecw"
    GROUP "Imagery"
    STATUS ON
    DATA "images/orthov2.ecw"
    TYPE RASTER
    MINSCALE 150000
    MAXSCALE 250000
  END
  LAYER
    NAME "orthov1.ecw"
    GROUP "Imagery"
    STATUS ON
    DATA "images/orthov1.ecw"
    TYPE RASTER
    MINSCALE 250000
  END
  LAYER
    NAME "Nova Scotia"
    GROUP "Base Data"
    STATUS ON
    DATA "shoreutm.shp"
    TYPE LINE
    UNITS METERS
    SIZEUNITS PIXELS
    TOLERANCE 0
    TOLERANCEUNITS PIXELS
    CLASS
      NAME "Shoreline"
      STYLE
        SYMBOL 0
        COLOR 72 164 255
        SIZE 2
        MINSIZE 1
        MAXSIZE 100
      END
    END
  END
  LAYER
    NAME "Index"
    GROUP "Base Data"
    STATUS ON
    DATA "juan_indx.shp"
    TYPE POLYGON
    UNITS METERS
    SIZEUNITS PIXELS
    TOLERANCE 0
    TOLERANCEUNITS PIXELS
    TEMPLATE "e:/nfis_data/juan_data/template/blank.html"
    CLASS
      NAME "Mapsheet Boundaries"
      STYLE
        SYMBOL 0
        COLOR -1 -1 -1
        OUTLINECOLOR 244 188 17
        BACKGROUNDCOLOR -1 -1 -1
        MINSIZE 1
        MAXSIZE 100
      END
    END
  END
  LAYER
    NAME "Roads"
    GROUP "Roads"
    STATUS ON
    DATA "netlin83_juan.shp"
    TYPE LINE
    CLASSITEM "netlin_id"
    UNITS METERS
    SIZEUNITS PIXELS
    MAXSCALE 500000
    TOLERANCE 10
    TOLERANCEUNITS PIXELS
    TEMPLATE "e:/nfis_data/juan_data/template/blank.html"
    CLASS
      NAME "100 Series Highway"
      EXPRESSION "210"
      STYLE
        COLOR 255 00 00
        SYMBOL "line1"
        SIZE 2
        MINSIZE 1
        MAXSIZE 100
      END
    END
    CLASS
      NAME "Trunk Roads"
      EXPRESSION "211"
      STYLE
        SYMBOL "line1"
        COLOR 145 85 0
        SIZE 1
        MINSIZE 1
        MAXSIZE 100
      END
    END
    CLASS
      NAME "Secondary Roads"
      EXPRESSION "212"
      STYLE
        SYMBOL "line1"
        COLOR 0 0 0
        SIZE 1
        MINSIZE 1
        MAXSIZE 100
      END
    END
    CLASS
      NAME "Tracks and Trails"
      EXPRESSION "213"
      STYLE
        SYMBOL "dot1"
        COLOR 0 0 0
        SIZE 1
        MINSIZE 1
        MAXSIZE 100
      END
    END
    CLASS
      NAME "Railroad"
      EXPRESSION "220"
      STYLE
        COLOR 180 0 0
        SYMBOL "dash3"
        SIZE 1
        MINSIZE 1
        MAXSIZE 100
      END
    END
  END
  LAYER
    NAME "Rivers"
    GROUP "Rivers"
    STATUS ON
    DATA "nshydro83_juan.shp"
    TYPE LINE
    UNITS METERS
    SIZEUNITS PIXELS
    MAXSCALE 250000
    TOLERANCE 10
    TOLERANCEUNITS PIXELS
    TEMPLATE "e:/nfis_data/juan_data/template/blank.html"
    CLASS
      NAME "Rivers and Streams"
      STYLE
        SYMBOL 0
        COLOR 0 0 230
        SIZE 1
        MINSIZE 1
        MAXSIZE 100
      END
    END
  END
  LAYER
    NAME "Major Water Bodies"
    GROUP "Major Water Bodies"
    STATUS ON
    DATA "nslake83_juan.shp"
    TYPE LINE
    UNITS METERS
    SIZEUNITS PIXELS
    MAXSCALE 250000
    TOLERANCE 10
    TOLERANCEUNITS PIXELS
    TEMPLATE "e:/nfis_data/juan_data/template/blank.html"
    CLASS
      NAME "Lakes and Water Bodies"
      STYLE
        SYMBOL 0
        COLOR 72 164 255
        OUTLINECOLOR 0 0 230
        BACKGROUNDCOLOR 72 164 255
        MINSIZE 1
        MAXSIZE 100
      END
    END
  END
  LAYER
    NAME "Flight Line"
    GROUP "Flight Line"
    STATUS ON
    DATA "juan_photocentres.shp"
    TYPE POINT
    MAXSCALE 250000
    TOLERANCE 10
    TOLERANCEUNITS PIXELS
    TEMPLATE "e:/nfis_data/juan_data/template/blank.html"
    CLASS
      NAME "Airphoto Centres"
      STYLE
        SYMBOL 7
        COLOR 255 153 51
        SIZE 8
        MINSIZE 1
        MAXSIZE 100
      END
    END
  END
END