[Mapserver-users] MapInfo example (was: thanks for your answers guys)

Tyler Mitchell tjmitchell at riverside.bc.ca
Wed Jun 16 12:48:22 EDT 2004


Sorry for the poor (non-existant) formatting, looked kinda cruddy once the 
HTML headings were stripped out.  I'm attaching a slightly better formated 
version below...


MapInfo Files 

Also known as TAB or MID/MIF files. 

File listing 

The following files are also associated with .TAB files: .DAT, .ID, .MAP. 
An example is: 
border.DAT border.ID border.MAP border.TAB

The term MID/MIF refers to files with .MID and .MIF extension. 


Data Access / Connection Method 

1.TAB and MID/MIF access is available in MapServer through OGR. 
2.The CONNECTIONTYPE OGR parameter must be used. 
3.The path to the (*.tab or *.mif) file is required, and file extension is 
needed. 
4.The path may be relative to the SHAPEPATH 
5.DGN files already contain "styling" information. This styling 
information can be used (optionally) by specifying the STYLEITEM "AUTO" 
parameter in the LAYER object of the mapfile. 
6.If you use STYLEITEM "AUTO" you must have an empty class in the layer 



OGRINFO Examples 

ogrinfo on a single TAB file 

$ ogrinfo elev5_poly.TAB 
Had to open data source read-only.
INFO: Open of `elev5_poly.TAB'
using driver `MapInfo File' successful.
1: elev5_poly (Polygon)

Using ogrinfo to examine the structure of the file/layer 

$ ogrinfo elev5_poly.TAB elev5_poly 
Had to open data source read-only.
INFO: Open of `elev5_poly.TAB'
using driver `MapInfo File' successful.

Layer name: elev5_poly
Geometry: Polygon
Feature Count: 2236
Extent: (-141.000000, 60.000000) - (-124.403310, 69.300251)
Layer SRS WKT:
GEOGCS["unnamed",
    DATUM["MIF 0",
        SPHEROID["WGS 84 (MAPINFO Datum 0)",6378137.01,298.257223563],
        TOWGS84[0,0,0,0,0,0,0]],
    PRIMEM["Greenwich",0],
    UNIT["degree",0.0174532925199433]]
AREA: Real (0.0)
PERIMETER: Real (0.0)
ELEV5_: Integer (0.0)
ELEV5_ID: Integer (0.0)
TYPE: Real (4.0)
ELEV5: Real (4.0)
...


Mapfile Syntax 

LAYER
  NAME Elevation_Poly_5
  TYPE POLYGON
  STATUS DEFAULT
  CONNECTIONTYPE OGR
  CONNECTION "./hypso/elev5_poly.TAB"
  STYLEITEM "AUTO"
  CLASS
    NAME "Elevation Poly 5"
  END
  PROJECTION
    "proj=latlong" "ellps=WGS84" # Geographic
  END
END # Layer



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