東京都のマップファイルと地図（平成20年版）

東京都の人口を階級区分して色分けする例です。

tokyo_shp2.mapをコピーしてtokyo_pgis_color.mapを作成します。
マップファイルのレイヤ部分を記述します。

MAP
 NAME tokyo_pgis_color_map
---
 LAYER
   NAME gyoseikai
   GROUP gyoseikai
   TYPE POLYGON
   STATUS ON
   CONNECTIONTYPE POSTGIS
   CONNECTION "dbname=tokyo host=localhost user=user password=password"
   DATA "the_geom FROM (
    SELECT gyoseikai.gid AS gid,
    gyoseikai.con AS con,
    gyoseikai.cn2 AS cn2,
    gyoseikai.aac AS aac,
    gyoseikai.the_geom AS the_geom,
    population.total AS total,
    population.male AS male,
    population.female AS female,
    population.foreigner AS foreigner
   FROM gyoseikai LEFT OUTER JOIN population ON gyoseikai.aac = population.aac)
    AS gyosei_pop USING UNIQUE gid USING SRID=-1"
  LABELITEM "cn2"
   METADATA
     "group_title" "行政界"
     "queryable" "true"
     "searchfield" "cn2"
     "fields" "con:郡政令,cn2:市区町村,total:人口"
   END
   CLASS
     NAME "行政界"
     STYLE
       OUTLINECOLOR 153 153 153
     END
     LABEL
       MINFEATURESIZE 40
       TYPE TRUETYPE
       FONT vl-gothic
       ENCODING UTF-8
       SIZE 8
     END
   END
   TEMPLATE temp_tokyo_pgis.html #ここを修正
 END

 LAYER #ダミーのレイヤ
   NAME gyoseikai2
   GROUP totalpop
   TYPE POLYGON
   STATUS ON
   CONNECTIONTYPE POSTGIS
   CONNECTION "dbname=tokyo host=localhost user=user password=password"
   DATA "the_geom FROM (
    SELECT gyoseikai.gid AS gid,
    gyoseikai.con AS con,
    gyoseikai.cn2 AS cn2,
    gyoseikai.aac AS aac,
    gyoseikai.the_geom AS the_geom,
    population.total AS total,
    population.male AS male,
    population.female AS female,
    population.foreigner AS foreigner
   FROM gyoseikai LEFT OUTER JOIN population ON gyoseikai.aac = population.aac)
    AS gyosei_pop USING UNIQUE gid USING SRID=-1"
  LABELITEM "cn2"
   METADATA
     "group_title" "人口"
   END
   CLASS
     NAME "行政界"
     STYLE
       OUTLINECOLOR 153 153 153
     END
     LABEL
       MINFEATURESIZE 40
       TYPE TRUETYPE
       FONT vl-gothic
       ENCODING UTF-8
       SIZE 8
     END
   END
 END

 LAYER #このレイヤを追加
   NAME totalpop
   GROUP totalpop
   TYPE POLYGON
   STATUS ON
   CONNECTIONTYPE POSTGIS
   CONNECTION "dbname=tokyo host=localhost user=user password=password"
   DATA "the_geom FROM (
    SELECT gyoseikai.gid AS gid,
    gyoseikai.con AS con,
    gyoseikai.cn2 AS cn2,
    gyoseikai.aac AS aac,
    gyoseikai.the_geom AS the_geom,
    population.total AS total,
    population.male AS male,
    population.female AS female,
    population.foreigner AS foreigner
   FROM gyoseikai LEFT OUTER JOIN population ON gyoseikai.aac = population.aac)
    AS gyosei_pop USING UNIQUE gid USING SRID=-1"
   OPACITY 50
   CLASSITEM "total"
   METADATA
     "group_title" "人口"
   END
   CLASS
     NAME "50万人以上"
     EXPRESSION ([total] >= 500000)
     COLOR 255 0 0
   END
   CLASS
     NAME "40万-50万人"
     EXPRESSION ([total] < 500000 AND [total] >= 400000)
     COLOR 255 51 51
   END
   CLASS
     NAME "30万-40万人"
     EXPRESSION ([total] < 400000 AND [total] >= 300000)
     COLOR 255 102 102
   END
   CLASS
     NAME "20万-30万人"
     EXPRESSION ([total] < 300000 AND [total] >= 200000)
     COLOR 255 153 153
   END
   CLASS
     NAME "10万人-20万人"
     EXPRESSION ([total] < 200000 AND [total] >= 100000)
     COLOR 255 204 204
   END
 END

 LAYER
   NAME gun_seirei
   GROUP gun_seirei
   TYPE ANNOTATION
   STATUS ON
   CONNECTIONTYPE POSTGIS
   CONNECTION "dbname=tokyo host=localhost user=user password=password"
   DATA "the_geom FROM (
    SELECT gyoseikai.gid AS gid,
    gyoseikai.con AS con,
    gyoseikai.cn2 AS cn2,
    gyoseikai.aac AS aac,
    gyoseikai.the_geom AS the_geom,
    population.total AS total,
    population.male AS male,
    population.female AS female,
    population.foreigner AS foreigner
   FROM gyoseikai LEFT OUTER JOIN population ON gyoseikai.aac = population.aac)
    AS gyosei_pop USING UNIQUE gid USING SRID=-1"
   LABELITEM "con"
   METADATA
     "group_title" "郡政令"
     "searchfield" "con"
     "fields" "con:郡政令,cn2:市区町村,total:人口"
   END
   CLASS
     NAME "郡政令"
     LABEL
       MINFEATURESIZE 40
       TYPE TRUETYPE
       FONT vl-gothic
       ENCODING UTF-8
       SIZE 8
       POSITION uc
     END
   END
   TEMPLATE temp_tokyo_pgis.html #ここを修正
 END

END #MAP END

temp_tokyo_pgis.htmlを作成します。
temp_tokyo_shp.htmlをコピーしてファイル名を変えます。
内容を次のように修正します。

<html>
 <head>
  <title>Tokyo pgis Template</title> #ここを修正
 </head>
 <body>
  <li>[con]
  <li>[cn2]
  <li>[total] #ここを追加
 </body>
</html>

config.phpの内容をつぎのように修正します。

 $aszTokyo = array (
         'title' => 'Tokyo',
         'path' => '/home/nob61/mapfile/tokyo_pgis_color.map',
         'scales' => array( 500000, 250000, 100000 ),
         'format' =>'PNG'
 );