Thematic mapping in MapServer

kenboss kenboss at dilbert.dnr.state.mn.us
Mon Jan 10 06:40:39 PST 2000


As per Steve's suggestion, here's a mapfile from the ForestView application 
(http://www.ra.dnr.state.mn.us/forestview/) demonstrating the creation of a 
number of map themes from a single shapefile.  You'll need to drill down fairly 
deep into the application to get to a point where this file is actually in use 
(to where you've selected a township and forest inventory (CSA) data is 
displayed).  I suppose the easiest way to get there would be to just type 
something like "T63R23W" into the text input box at the upper left of the first 
map page. 

The first layer of the mapfile handles all queries; the rest are different 
visual slices of the same shapefile.  Many of the thematic slices are actually 
based on a single attribute field (ctype), and are defined using regular 
expressions.  Other themes are based on different attribute fields (csize, age, 
tbr).

Note that this is a mapserv 3.2 application.  

Hope this is helpful,

--Ken

=============================================================================
Ken Boss                                
Digital Image Analysis / Web Stuff       Forestry Resource Assessment
kenboss at dilbert.dnr.state.mn.us          Minnesota Dept. of Natural Resources
Voice: 218 327 4449 ext. 237             413 SE 13th Street                 
Fax:   218 327 4517                      Grand Rapids, MN  55744          USA
                   www.ra.dnr.state.mn.us
=============================================================================

-------------- next part --------------
NAME FV2
SIZE 375 375
# EXTENT 583079.750 4884196.000 592899.562 4894012.000 
SHAPEPATH ../shapes/township
UNITS meters
MARKERSET ../symbols/general.sym


WEB
  TEMPLATE fvj_csa_disp.html
  MAXSCALE 100000
  MINSCALE 15000
END

LEGEND
  STATUS on
  KEYSIZE 25 15
# OUTLINECOLOR 0 0 0
#  IMAGECOLOR 245 245 245
  LABEL
    COLOR 0 0 0
    TYPE TRUETYPE
    FONT "trebuchet_ms-bold"
    SIZE 16
  END # Label definition
END # Legend


SCALEBAR
  STATUS on
  SIZE 325 5
  COLOR 255 255 255
  BACKGROUNDCOLOR 0 0 0
  OUTLINECOLOR 0 0 0 
  IMAGECOLOR 255 255 255
  UNITS miles
  INTERVALS 5
  LABEL
    SIZE small
    COLOR 0 0 0
  END
END # Scalebar


REFERENCE
  SIZE 93 105
  IMAGE ../symbols/cnty_ref.gif
  EXTENT 148055 4774590 803382 5514130
  STATUS on
END # Reference


#####################
# Layer Definitions #
#####################

LAYER 
  NAME stands
  TYPE polygon
  STATUS off
  DATA standpy3
  QUERYITEM ctype
  QUERY
    EXPRESSION "^[1-9]$|^[1-7]|81"
    TEMPLATE fv_for_query.html
    JOIN
      NAME cntyj
      TABLE /webdata/csa/tables/county.dbf
      FROM county
      TO county
    END  
    JOIN
      NAME radj
      TABLE /webdata/csa/tables/rad.dbf
      FROM rad_
      TO rad_
    END  
    JOIN
      NAME csizej
      TABLE /webdata/csa/tables/csize.dbf
      FROM csize
      TO csize
    END  
    JOIN
      NAME cdensej
      TABLE /webdata/csa/tables/cdense.dbf
      FROM cdense
      TO cdense
    END  
    JOIN
      NAME usizej
      TABLE /webdata/csa/tables/csize.dbf
      FROM usize
      TO csize
    END  
    JOIN
      NAME tbrj
      TABLE /webdata/csa/tables/tbr.dbf
      FROM tbr
      TO tbr
    END  
  END
  QUERY
    EXPRESSION "^8[2-9]|^9"
    TEMPLATE fv_nonfor_query.html
    JOIN
      NAME cntyj
      TABLE /webdata/csa/tables/county.dbf
      FROM county
      TO county
    END  
    JOIN
      NAME radj
      TABLE /webdata/csa/tables/rad.dbf
      FROM rad_
      TO rad_
    END  
  END
END # Layer stands

LAYER
  NAME genfor
  TYPE polygon
  STATUS off
  DATA standpy3
  CLASSITEM ctype
  CLASS
    NAME "Hardwoods"
    EXPRESSION "^[1-9]$|^[1-4]|^7[8,9]"
    SYMBOL 0
    COLOR 0 151 0
  END
  CLASS
    NAME "Conifers"
    EXPRESSION "^[5,6]|^7[1-4]|^81"
    SYMBOL 0
    COLOR 0 117 117
  END
  CLASS
    NAME "Unprod. Conifers"
    EXPRESSION "^7[5-7]"
    SYMBOL 0
    COLOR 0 185 185
  END
  CLASS
    NAME "Non-Forest"
    EXPRESSION "8[2-9]|9[1-5,89]"
    SYMBOL 0
    COLOR 219 219 219
  END
END # Layer genfor

LAYER
  NAME hardtypes
  TYPE polygon
  STATUS off
  DATA standpy3
  CLASSITEM ctype
  CLASS
    NAME "Ash"
    EXPRESSION "^1$"
    SYMBOL 0
    COLOR 185 136 0
  END
  CLASS
    NAME "Aspen"
    EXPRESSION "12|78"
    SYMBOL 0
    COLOR 212 212 128
  END
  CLASS
    NAME "Birch"
    EXPRESSION "13"
    SYMBOL 0
    COLOR 236 221 0
  END
  CLASS
    NAME "Balm of Gilead"
    EXPRESSION "14"
    SYMBOL 0
    COLOR 0 219 219
  END
  CLASS
    NAME "Oak"
    EXPRESSION "30|79"
    SYMBOL 0
    COLOR 105 105 34
  END
  CLASS
    NAME "Cottonwood"
    EXPRESSION "15"
    SYMBOL 0
    COLOR 0 117 117
  END
  CLASS
    NAME "Walnut"
    EXPRESSION "25"
    SYMBOL 0
    COLOR 222 158 222
  END
  CLASS
    NAME "Willow"
    EXPRESSION "^6$"
    SYMBOL 0
    COLOR 0 219 0
  END
  CLASS
    NAME "Lowland Hardwoods"
    EXPRESSION "^9$"
    SYMBOL 0
    COLOR 0 0 117
  END
  CLASS
    NAME "Central Hardwoods"
    EXPRESSION "40"
    SYMBOL 0
    COLOR 246 122 0
  END
  CLASS
    NAME "Northern Hardwoods"
    EXPRESSION "20"
    SYMBOL 0
    COLOR 202 0 0
  END
  CLASS
    NAME "Conifers"
    EXPRESSION "^[5,6]|^7[1-4]|^7[5-7]|^81"
    SYMBOL 0
    COLOR 24 75 24
  END
  CLASS
    NAME "Non-Forest"
    EXPRESSION "^8[2-8]|^9"
    SYMBOL 0
    COLOR 219 219 219
  END
END # Layer hardtypes

LAYER
  NAME contypes
  TYPE polygon
  STATUS off
  DATA standpy3
  CLASSITEM ctype
  CLASS
    NAME "White Pine"
    EXPRESSION "51"
    SYMBOL 0
    COLOR 0 151 0
  END
  CLASS
    NAME "Norway Pine"
    EXPRESSION "52"
    SYMBOL 0
    COLOR 151 90 0
  END
  CLASS
    NAME "Jack Pine"
    EXPRESSION "53"
    SYMBOL 0
    COLOR 0 66 66
  END
  CLASS
    NAME "Scotch Pine"
    EXPRESSION "54"
    SYMBOL 0
    COLOR 172 245 98
  END
  CLASS
    NAME "White Spruce"
    EXPRESSION "61"
    SYMBOL 0
    COLOR 0 236 236
  END
  CLASS
    NAME "Black Spruce"
    EXPRESSION "71|74|75"
    SYMBOL 0
    COLOR 0 0 117
  END
  CLASS
    NAME "White Cedar"
    EXPRESSION "73|77"
    SYMBOL 0
    COLOR 30 94 94
  END
  CLASS
    NAME "Red Cedar"
    EXPRESSION "81"
    SYMBOL 0
    COLOR 248 95 95
  END
  CLASS
    NAME "Balsam Fir"
    EXPRESSION "62"
    SYMBOL 0
    COLOR 100 49 0
  END
  CLASS
    NAME "Tamarack"
    EXPRESSION "72|76"
    SYMBOL 0
    COLOR 98 98 202
  END
  CLASS
    NAME "Hardwoods"
    EXPRESSION "^[1-9]$|^[1-4]|^7[8,9]"
    SYMBOL 0
    COLOR 236 0 0
  END
  CLASS
    NAME "Non-Forest"
    EXPRESSION "^8[2-8]|^9"
    SYMBOL 0
    COLOR 219 219 219
  END
END # Layer contypes

LAYER
  NAME forsize
  TYPE polygon
  STATUS off
  DATA standpy3
  CLASSITEM csize
  CLASS
    NAME "0 to 1 in. DBH"
    EXPRESSION "1"
    SYMBOL 0
    COLOR 219 190 0
  END
  CLASS
    NAME "1 to  3 in. DBH"
    EXPRESSION "2"
    SYMBOL 0
    COLOR 202 162 0
  END
  CLASS
    NAME "3 to  5 in. DBH"
    EXPRESSION "3"
    SYMBOL 0
    COLOR 185 136 0
  END
  CLASS
    NAME "5 to  9 in. DBH"
    EXPRESSION "4"
    SYMBOL 0
    COLOR 168 112 0
  END
  CLASS
    NAME "9 to 15 in. DBH"
    EXPRESSION "5"
    SYMBOL 0
    COLOR 151 90 0
  END
  CLASS
    NAME "15 to 20 in. DBH"
    EXPRESSION "6"
    SYMBOL 0
    COLOR 134 71 0
  END
  CLASS
    NAME "20 to 25 in. DBH"
    EXPRESSION "7"
    SYMBOL 0
    COLOR 117 54 0
  END
  CLASS
    NAME "25+ in. DBH"
    EXPRESSION "8"
    SYMBOL 0
    COLOR 100 39 0
  END
  CLASS
    NAME "Non-Forest"
    EXPRESSION "0"
    SYMBOL 0
    COLOR 219 219 219
  END
END # Layer forsize

LAYER
  NAME forage
  TYPE polygon
  STATUS off
  DATA standpy3
  CLASSITEM age
  CLASS
    NAME "1-9 Years"
    EXPRESSION "^[1-9]$"
    SYMBOL 0
    COLOR 0 236 0
  END
  CLASS
    NAME "10-19 Years"
    EXPRESSION "^1[0-9]$"
    SYMBOL 0
    COLOR 0 219 0
  END
  CLASS
    NAME "20-29 Years"
    EXPRESSION "^2[0-9]$"
    SYMBOL 0
    COLOR 0 202 0
  END
  CLASS
    NAME "30-39 Years"
    EXPRESSION "^3[0-9]$"
    SYMBOL 0
    COLOR 0 185 0
  END
  CLASS
    NAME "40-49 Years"
    EXPRESSION "^4[0-9]$"
    SYMBOL 0
    COLOR 0 168 0
  END
  CLASS
    NAME "50-74 Years"
    EXPRESSION "^[5,6][0-9]$|^7[0-4]"
    SYMBOL 0
    COLOR 0 151 0
  END
  CLASS
    NAME "75-99 Years"
    EXPRESSION "^7[5-9]$|^[8,9][1-9]"
    SYMBOL 0
    COLOR 0 134 0
  END
  CLASS
    NAME "100-124 Years"
    EXPRESSION "^1[0,1][0-9]|^12[0-4]"
    SYMBOL 0
    COLOR 0 117 0
  END
  CLASS
    NAME "125-149 Years"
    EXPRESSION "^12[5-9]|^1[3,4][0-9]"
    SYMBOL 0
    COLOR 0 100 0
  END
  CLASS
    NAME "150+ Years"
    EXPRESSION "^1[5-9][0-9]|^2[0-9][0-9]"
    SYMBOL 0
    COLOR 0 83 0
  END
  CLASS
    NAME "Non-Forest"
    EXPRESSION "0"
    SYMBOL 0
    COLOR 219 219 219
  END
END # Layer forage

LAYER
  NAME oldgrowth
  TYPE polygon
  STATUS off
  DATA standpy3
  CLASSITEM tbr
  CLASS
    NAME "Old Growth"
    EXPRESSION "5"
    SYMBOL 0
    COLOR 80 110 51
  END
  CLASS
    NAME "OG Management Zone"
    EXPRESSION "6"
    SYMBOL 0
    COLOR 135 215 55
  END
  CLASS
    NAME "Future/Potential OG"
    EXPRESSION "7"
    SYMBOL 0
    COLOR 0 151 151
  END
END # Layer

LAYER
  NAME gencov
  TYPE polygon
  STATUS off
  DATA standpy3
  CLASSITEM ctype
  CLASS
    NAME "Hardwoods"
    EXPRESSION "^[1-9]$|^[1-4]|^7[8,9]"
    SYMBOL 0
    COLOR 0 202 0
  END
  CLASS
    NAME "Conifers"
    EXPRESSION "^[5,6]|^7[1-4]|^7[5-7]|^81"
    SYMBOL 0
    COLOR 24 75 24
  END
  CLASS
    NAME "Shrublands"
    EXPRESSION "^8[5,6]"
    SYMBOL 0
    COLOR 135 135 44
  END
  CLASS
    NAME "Cutover Areas"
    EXPRESSION "82"
    SYMBOL 0
    COLOR 95 248 248
  END
  CLASS
    NAME "Grasslands"
    EXPRESSION "^8[3,4]"
    SYMBOL 0
    COLOR 212 212 128
  END
  CLASS
    NAME "Agriculture"
    EXPRESSION "91"
    SYMBOL 0
    COLOR 236 221 0
  END
  CLASS
    NAME "Wetlands"
    EXPRESSION "98|99"
    SYMBOL 0
    COLOR 105 34 105
  END
  CLASS
    NAME "Water"
    EXPRESSION "96|97"
    SYMBOL 0
    COLOR 0 0 236
  END
  CLASS
    NAME "Rock Outcrop"
    EXPRESSION "95"
    SYMBOL 0
    COLOR 168 168 168
  END
  CLASS
    NAME "Developed"
    EXPRESSION "92|93|94"
    SYMBOL 0
    COLOR 165 54 54
  END
END # Layer gencov

LAYER
  NAME boundaries
  TYPE line
  STATUS default
  DATA standpy3
  CLASS
    NAME "Stand Boundaries"
    SYMBOL 0
    COLOR 200 200 200
  END
END

END # Mapfile



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