1、数据文件
下列文件组合起来描述一个图层:
.tab          
    描述MapInfo表结构,说明数据文件格式 文本
.dat(.mdb/.dbf/.txt/.xls/.wks) 
    表格数 据   二进制
.map                                            
    图形对象(无图形,对象则不存在) 二进制
.id                                                
   连接数据和地图对象的参照文件(无对象则不存在) 二进制
.ind                                              
   索引文件,查帐地图对象 二进制
 
2.描述地图文件有两种
.gst                 文本格式,tab文件的集合,不能存入数据库
.mdf                XML格式,包含各图层的信息,可以存入数据库 (*!)
 
3. tab文件结构
              header
              !table
              !version 300
              !charset WindowsLatin1
              body
              commands
              MapBasic命令,在读入下一部分(table definition)前顺序执行。
              table definition
              描述表结构
              有下列几种:
              NATIVE格式
                    Definition Table必须
                    Type NATIVE Charset "WindowsLatin1" 必须
                    Fields 4必须,域段数量
                      id Integer Index 1 ;   域段名字,类型,索引
                      structure_type Char (13) ;...
                      mast_type Char (15) ;  …
                      foundation_type Char (17) ;…
              
              栅格文件
                    Definition Table必须
                    File "sf_rastc.bil"必须,栅格文件名
                    Type "RASTER" 必须
                    (548421,4183579) (0,0) Label "Pt 1", 
                    (548441,4183579) (1,0) Label "Pt 2",
                    (548421,4183559) (0,1) Label "Pt 3"
                    CoordSys Earth Projection 8, 62, "m", -123, 0, 0.9996,
                    500000, 0 Units "m"
                    RasterStyle 2 62
              mig文件
                    Definition Table必须
                    File "bidon_value.mig" 必须,MIG文件名
                    Type "RASTER"必须
                    (297153.63503593224,5007379.3522604182) (0,0) Label "",
                    (312554.15366307431,5007379.3522604182) (204,0) Label "",
                    (312554.15366307431,4992205.3118483815) (204,201) Label "",
                    (297153.63503593224,4992205.3118483815) (0,201) Label ""
                    CoordSys Earth Projection 8, 33, "m", -73.5, 0, 0.9999,
                    304800, 0 Units "m"
                    RasterStyle 6 1
                    begin_metadata
                    …
                    end_metadata元数据
              分隔ASCII
                    Definition Table必须
                    Type ASCII Delimiter 09 Titles Charset "WindowsLatin1"必须
                    Fields 3和NATIVE类似
                      Start Float ;
                      End Float ;
                      Side Char (6) ;
              Excel XLS文件
                    Definition Table必须
                    TypeXLSTitlesRange "Sheet1"必须
                    Fields 3 和NATIVE类似
                       A Float ;
                       B Float ;
                       C Char (6) ;
              
              Lotus WK*文件
                    Definition Table必须
                    File "lotus.wk4"必须,指定文件名
                    Type WKS Titles必须
                    Fields 1和NATIVE类似
                       A Char (1) ;
              Access MDB文件
                    Definition Table 必须
                    File "sample.mdb" MDB文件名
                    Type ACCESS TABLE "rdatbln_line" Charset "WindowsLatin1"必须
                    Fields 5和NATIVE类似
                       FNODE_ Integer ; 
                       TNODE_ Integer ;
                       LPOLY_ Integer ;
                       RPOLY_ Integer ;
                       LENGTH Float ;
              
              元数据
              begin_metadata
              "\IsReadOnly" = "FALSE"
              "\Identification" = ""
              "\Identification\Use Constraints" = "For use with MapInfo
              Professional"
              "\Identification\Access Constraints" = "Licensed Users"
              "\Identification\Domain" = ""
              "\Identification\Domain\Bounds" = ""
              "\Identification\Domain\Bounds\West" = "-16190368.44"
              "\Identification\Domain\Bounds\East" = "16606614.14"
              "\Identification\Domain\Bounds\North" = "6743291.67"
              "\Identification\Domain\Bounds\South" = "-5501153.1"
              "\Identification\Citation" = "MapInfo Professional Bundled Maps;
              World Capitals"
              "\Identification\Description" = ""
              "\Identification\Description\Abstract" = "Location of world
              capitals.Also included regional and colonial capitals of
              significant areas belonging to other countries.Based on current
              World Almanac and UN definitions of Countries."
              "\Identification\Time Period" = ""
              "\Identification\Time Period\Currentness" = "1995"
              "\Identification\Keywords" = ""
              "\Identification\Keywords\Theme" = ""
              "\Identification\Keywords\Theme\Geography" = "World"
              "\Identification\Keywords\Theme\Geography\Abbreviation" = ""
              "\Identification\Keywords\Theme\Content" = "Reference Data"
              "\Identification\Keywords\Place" = ""
              "\Identification\Keywords\Place\Layers" = ""
              "\Identification\Keywords\Place\Layers\Count" = "1"
              "\Identification\Keywords\Place\Layers\Layer1Name" = "World"
              "\Identification\Keywords\Place\Layers\Layer1" = "World"
              "\Spatial Reference" = ""
              "\Spatial Reference\Geographic" = ""
              "\Spatial Reference\Geographic\Projection" = ""
              "\Spatial Reference\Geographic\Projection\Clause" = "CoordSys
              Earth Projection 12, 62, ""m"", 0 Bounds (-34012036.7393,
              -8625248.51472) (34012036.7393, 8625248.51472)"
              "\Spatial Reference\Geographic\Projection\Name" = "Robinson"
              "\Spatial Reference\Geographic\Coordinate Units" = "Meters"
              "\Spatial Reference\Geodetic" = ""
              "\Spatial Reference\Geodetic\Datum" = "NAD 27"
              "\Spatial Reference\Geodetic\Ellipsoid" = "Clarke 1866"
              "\Spatial Organization" = ""
              "\Spatial Organization\Object" = ""
              "\Spatial Organization\Object\Type1" = "Regions"
              "\Spatial Organization\Object\Type1\Count" = "0"
              "\Spatial Organization\Object\Type2" = "Points"
              "\Spatial Organization\Object\Type2\Count" = "214"
              "\Spatial Organization\Object\Type3" = "Polylines"
              "\Spatial Organization\Object\Type3\Count" = "0"
              "\Spatial Organization\Object\Type4" = "Lines"
              "\Spatial Organization\Object\Type4\Count" = "0"
              "\Spatial Organization\Object\All" = ""
              "\Spatial Organization\Object\All\TotalCount" = "214"
              "\Spatial Organization\Method" = ""
              "\Spatial Organization\Method\Type" = "Points"
              "\Quality" = ""
              "\Quality\Lineage" = ""
              "\Quality\Lineage\Source" = ""
              "\Quality\Lineage\Source\Vintage" = "1995"
              "\Quality\Lineage\Source\Scale" = "~ 1:20,000,000"
              "\Quality\Lineage\Source\Citation" = "MapInfo from Digital Chart
              of the World"
              end_metadata
              
              Oracle Spatial
              一个空间数据表对应着下面数据字典表中的一行。
              MAPINFO_MAPCATALOG
              CREATE TABLE MAPINFO.MAPINFO_MAPCATALOG (
              SPATIALTYPE NUMBER,
              TABLENAME VARCHAR2(32),
              OWNERNAME VARCHAR2(32),
              SPATIALCOLUMN VARCHAR2(32),
              DB_X_LL NUMBER,
              DB_Y_LL NUMBER,
              DB_X_UR NUMBER,
              DB_Y_UR NUMBER,
              COORDINATESYSTEM VARCHAR2(254),
              SYMBOL VARCHAR2(254),
              XCOLUMNNAME VARCHAR2(32),
              YCOLUMNNAME VARCHAR2(32),
              RENDITIONTYPE NUMBER,
              RENDITIONCOLUMN VARCHAR2(32),
              RENDITIONTABLE VARCHAR2(32));
              --在TABLENAME,OWNERNAME上创建索引
              CREATE
              UNIQUE INDEX MAPINFO_MAPCATALOG_INDEX ON
              MAPINFO.MAPINFO_MAPCATALOG (TABLENAME,OWNERNAME);
              
              表域段说明
                    域段名取值示例
                    SPATIALTYPE SpatialWare值:
                    5.0 (SpatialWare points)
                    5.1 (SpatialWare lines)
                    5.2 (SpatialWare regions)
                    5.3 (SpatialWare, all types of features)
                    Informix IUS值:
                    11.0 (IUS SW Blade points)
                    11.1 (IUS SW Blade lines)
                    11.2 (IUS SW Blade regions)
                    11.3 (IUS SW Blade, all types of features)5.3
                    TABLENAME 表名Country
                    OWNERNAME 所有者PKUGIS
                    SPATIALCOLUMN 字段名,可能包含空间属性
                    SW_GEOMETRY(mappable using SpatialWare Type/IUS)
                    NO_COLUMN (mappable using X-Y)
                    MI_SQL_MICODE (mappable using MI Code)
                    或IUS字段名(ST_SPATIAL数据类型)SW_GEOMETRY
                    DB_X_LL 图层外接四边形左下角的X坐标-360
                    DB_Y_LL 图层外接四边形左下角的Y坐标-90
                    DB_X_UR 图层外接四边形右上角的X坐标360
                    DB_Y_UR 图层外接四边形右上角的Y坐标90
                    COORDINATESYSTEM 参考坐标系Earth Projection 1, 0
                    SYMBOL 若图层只包含点,则用Symbol;
                    若有线或区域边界,则用Pen
                    另外还有BrushSymbol(35,0,12) Pen(1,2,0) Pen(1,2,0)
                    Brush(2,255,255)
                    XCOLUMNNAME 包含X坐标的字段的名称,若没有,则为NO_COLUMN. NO_COLUMN
                    YCOLUMNNAME 包含Y坐标的字段的名称,若没有,则为NO_COLUMN. NO_COLUMN
                    RENDITIONTYPE 1
                    RENDITIONCOLUMN 
                    RENDITIONTABLE