Projections

[Bradley Mclain]

Hi

I'm having some problems with projections in Mapserver. I have three pieces 
of data, 2 polygon shapefiles and a GeoTIFF raster image. I am trying to 
define their projections so that they align correctly as the raster is 
slightly off from the two shapefiles.

I have managed to extract the geographical info from the files but I have no 
idea where I define it in the mapfile and what info I need to include (or 
what any of it means).

I have attached the three text files which include the geographical data for 
each, can someone explain to me how to define these in a mapfile, eg where I 
need to do it and what info I need.

Can you please include lots of detail and description so I can fully 
understand :)

Thanks

Brad

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Layer name: DBW_Home_Bilbul_Cadastral_Boundary
Geometry: Polygon
Feature Count: 15
Extent: (419320.137222, 6205167.425465) - (421949.715102, 6207719.690811)
Layer SRS WKT:
PROJCS["GDA_1994_MGA_Zone_55",
    GEOGCS["GCS_GDA_1994",
        DATUM["Geocentric_Datum_of_Australia_1994",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["False_Easting",500000.0],
    PARAMETER["False_Northing",10000000.0],
    PARAMETER["Central_Meridian",147.0],
    PARAMETER["Scale_Factor",0.9996],
    PARAMETER["Latitude_Of_Origin",0.0],
    UNIT["Meter",1.0]]
LUID: Real (11.0)
PLANTYPE: String (4.0)
TAG: String (50.0)
Area: Real (19.11)
Perimeter: Real (19.11)
Acres: Real (19.11)
Hectares: Real (19.11)
Bound_type: String (25.0)
Prop_ID: String (30.0)
OGRFeature(DBW_Home_Bilbul_Cadastral_Boundary):0
  LUID (Real) =   103663790
  PLANTYPE (String) = 13
  TAG (String) = 116//751728
  Area (Real) =  206766.29741414590
  Perimeter (Real) =    1930.52158953932
  Acres (Real) =      51.09308655258
  Hectares (Real) =      20.67662974141
  Bound_type (String) = Cadastre
  Prop_ID (String) = DBW_Home_Bilbul
  POLYGON ((419849.019570303731598 
6205435.040179193019867,419680.452153401391115 
6205707.173638857901096,420228.545299204241019 
6206046.107636354863644,420397.849921675398946 
6205772.639121992513537,419849.019570303731598 6205435.040179193019867))

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Layer name: DBW_Hemley_2593_Cadastral_Boundary
Geometry: Polygon
Feature Count: 3
Extent: (422645.120770, 6208302.281805) - (423450.690420, 6208880.746240)
Layer SRS WKT:
PROJCS["GDA_1994_MGA_Zone_55",
    GEOGCS["GCS_GDA_1994",
        DATUM["Geocentric_Datum_of_Australia_1994",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["False_Easting",500000.0],
    PARAMETER["False_Northing",10000000.0],
    PARAMETER["Central_Meridian",147.0],
    PARAMETER["Scale_Factor",0.9996],
    PARAMETER["Latitude_Of_Origin",0.0],
    UNIT["Meter",1.0]]
LUID: Real (11.0)
PLANTYPE: String (4.0)
TAG: String (50.0)
Area: Real (19.11)
Perimeter: Real (19.11)
Acres: Real (19.11)
Hectares: Real (19.11)
Bound_type: String (40.0)
Prop_ID: String (30.0)
OGRFeature(DBW_Hemley_2593_Cadastral_Boundary):0
  LUID (Real) =   103664166
  PLANTYPE (String) = 13
  TAG (String) = 288//751728
  Area (Real) =   73981.56105988749
  Perimeter (Real) =    1173.94681513112
  Acres (Real) =      18.28124965142
  Hectares (Real) =       7.39815610599
  Bound_type (String) = Cadastre
  Prop_ID (String) = Hemley_2593
  POLYGON ((423067.736698167922441 
6208782.058439230546355,423228.702213083277456 
6208880.746239688247442,423450.690419794409536 
6208521.27053206320852,423266.332749532884918 
6208468.748745977878571,423260.736078957444988 
6208477.574468746781349,423067.736698167922441 6208782.058439230546355))

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Driver: GTiff/GeoTIFF
Size is 9530, 6552
Coordinate System is `'
Origin = (418485.188000000023749,6208828.519999999552965)
Pixel Size = (0.609681177000000,-0.609608973000000)
Metadata:
  AREA_OR_POINT=Area
  TIFFTAG_SOFTWARE=IMAGINE TIFF Support
Copyright 1991 - 1999 by ERDAS, Inc. All Rights Reserved
@(#)$RCSfile: etif.c $ $Revision: 1.9.1.2 $ $Date: 2001/12/05 00:33:12Z $
  TIFFTAG_XRESOLUTION=1
  TIFFTAG_YRESOLUTION=1
  TIFFTAG_RESOLUTIONUNIT=1 (unitless)
Corner Coordinates:
Upper Left  (  418485.188, 6208828.520)
Lower Left  (  418485.188, 6204834.362)
Upper Right (  424295.450, 6208828.520)
Lower Right (  424295.450, 6204834.362)
Center      (  421390.319, 6206831.441)
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Band 3 Block=9530x1 Type=Byte, ColorInterp=Blue