# The annotated map file (sort of)
# Created by Pericles S. Nacionales for the MapServer tutorial
# 2005-04-08
# Maintained & enhanced since by Jeff McKenna, GatewayGeo
# 2023-04-19 last updated
#
# MapServer map file uses the pound sign (#) to denote the start of a line
# comment--each line that needs to be commented has to be prepended with a "#".
#
# Map files begin with MAP keyword to signify the start of the map object.
# Well, the entire map file is THE map object.  Enclosed between MAP and END
# at the very bottom of this map file, are keyword/value pairs and other
# objects.
MAP
  IMAGETYPE      PNG24
  EXTENT        201621.496941 -294488.285333 1425518.020722 498254.511514 # LAEA
  #EXTENT         -97.5 41.619778 -82.122902 49.38562 # Geographic
  SIZE           400 300
  SHAPEPATH      "../data"
  SYMBOLSET      "../symbols/symbols.txt"
  FONTSET        "../fonts/fonts.txt"

  # The projection object is typically used within the map and the layer
  # objects. You only define it once within the map object and this definition
  # becomes your output projection--MapServer will render your maps in this
  # projection.  You also use the projection object within the layer object to
  # define your input projection.  Your layers can be in different
  # projections--MapServer will reproject them into your output projection.
  # If no projection is defined within the layer object, MapServer assumes
  # your input projection is the same as your output projection.  This is not
  # a required object unless you're creating a map file that supports one of
  # the OGC interoperability web services specifications (WMS/WFS/WCS).
  #
  # This is the output PROJECTION definition ------
  PROJECTION
    # Projection parameters can be defined in two ways...
    # This is the traditional PROJ definition of Lambert Azimuthal Equal-Area
    # projection for the Continental U.S.
    #  "proj=laea"
    #  "ellps=clrk66"
    #  "lat_0=45"
    #  "lon_0=-100"
    #
    # Alternatively, you can specify an EPSG code.
    # This is the EPSG code for Lambert Azimuthal Equal-Area
    # projection for the U.S.
    "init=epsg:2163"
 END
  
  # The web object is defined at the level below the map object.  All
  # web-related parameters (I interchange "parameters" and "keyword/value
  # pairs" quite frequently, sorry about that) are defined in this object.
  WEB
    IMAGEPATH "/ms4w/tmp/"
    IMAGEURL  "/tmp/"
  END

  # Layer objects are defined beneath the map object.  You need at least one
  # layer defined in your map file before you can display a map...  You can
  # define as many layers as you'd like.
  #
  # Start of LAYER DEFINITIONS ---------------------------------------------
  LAYER # States polygon layer begins here
    NAME         "states"
    DATA         "states_ugl.shp"
    STATUS       OFF
    TYPE         POLYGON

    # Here's an example of the input projection definition.
    # EPSG:4326 is code for geographic (latlong) projection
    # using the WGS84 datum.
    #
    # PROJECTION objects within the LAYER object define the input
    # projection--this is the native projection of your data.
    PROJECTION
      "init=epsg:4326"
    END

    # CLASSITEM defines the non-spatial attribute that you will be using to
    # separate a layer into classes.  This attribute will be in the DBF file
    # of your shapefile (it will be different for each data format).  In this
    # example the shapefile states_ugl has an associated database
    # (states_ugl.dbf) that contains an attribute called "CLASS".  You will be
    # using two values in the CLASS attribute to separate the classes (also
    # called themes) used in this layer--land and water.  CLASSITEM is used in
    # association with the EXPRESSION parameter in the CLASS object.  See below.
    CLASSITEM    "CLASS"
	
    # Just like CLASSITEM, LABELITEM defines the database attribute that you
    # will be using to draw labels.  In this case, the values of the attribute
    # "STATE" will be used to label the states polygons.
    LABELITEM    "STATE"	

    # The class object is defined within the layer object.  You can define as
    # many classes as you need.
    CLASS
      NAME 'States'
      EXPRESSION 'land'

      # There are styles in a class, just like there are classes in a layer,
      # just like there are layers in a map.  You can define multiple styles in
      # a class just as you can define multiple classes in a layer and multiple
      # layers in a map.
      STYLE
        COLOR      232 232 232
      END
	  
      # There can be labels in a class, just like there are classes in a layer,
      # just like there are layers in a map.  You can define multiple labels in
      # a class just as you can define multiple classes in a layer and multiple
      # layers in a map.
      # MapServer has a very flexible labeling system.  With that flexibility
      # comes complexity, specially when using truetype fonts.  Please read
      # through the LABEL section of the MapServer map file documentation at
      # http://www.mapserver.org/mapfile for more information.
      LABEL
        COLOR 132 31 31
        SHADOWCOLOR 218 218 218
        SHADOWSIZE 1 1
        TYPE TRUETYPE
        FONT arial-bold
        SIZE 12
        ANTIALIAS TRUE
        POSITION CL
        PARTIALS FALSE
        MINDISTANCE 200
        BUFFER 4
      END # end of label
    END # end of class	  
  END # States polygon layer ends here

  # In addition to vector data (shapefiles are vector data), MapServer supports
  # a host of raster formats.  In GIS world, one of the most common raster
  # formats is GeoTIFF, a TIFF image with geospatial headers.  MapServer also
  # supports JPEG, PNG, GIF, and other common formats.  Other raster formats
  # supported by MapServer include ESRI Arc/Info grid, HDF and HDF-EOS, NetCDF, 
  # Generic raster binaries, OGC Web Map Service (WMS) layers, etc.  Pretty much 
  # any raster format you can think of is probably supported, thanks to the
  # impressive Geospatial Data Abstraction Library (GDAL, pronounced "GOODALL"
  # or GOODLE?).  More information on GDAL is available at http://www.gdal.org.
  #
  # MapServer can read and display bitmapped (like GIFs), RGB/A (true
  # color), and multispectral (images with more than 3 bands, like raw LandSat
  # images) rasters.
  LAYER # MODIS raster layer begins here
    NAME         "modis"
    DATA         "raster/mod09a12003161_ugl_ll_8bit.tif"
    STATUS       OFF
    TYPE         RASTER
    PROCESSING   "BANDS=1,2,3"
    OFFSITE      71 74 65

    PROJECTION
      "init=epsg:4326"
    END
  END # MODIS raster layer ends here

  # MapServer can consume layers from other map servers as
  # long as those servers are Web Mapping Service (WMS) providers.  WMS is a 
  # web service specification from Open Geospatial Consortium (OGC) and is
  # intended to be an interoperability standard for web mapping applications.  
  # This allows us to display layers we don't usually have (or can't store in 
  # our computers due to space limitations).  The downside is that we have to 
  # depend on some other server to display our layer, and that server can be 
  # down when you really need it.  The cool thing is that NASA has a WMS server 
  # that serves out MODIS satellite maps for the whole world--try storing 
  # those datasets on your computer!  Read more about the service at 
  # https://nasa-gibs.github.io/gibs-api-docs/available-visualizations/
  LAYER # MODIS WMS map from NASA
    NAME         "modis_nasa"
    TYPE         RASTER
    OFFSITE      0 0 0
    STATUS       OFF
    CONNECTIONTYPE WMS
    CONNECTION "https://gibs.earthdata.nasa.gov/wms/epsg4326/best/wms.cgi?"
    
    METADATA
      "wms_srs" "EPSG:4326"
      "wms_name" "Blue Marble"
      "wms_server_version" "1.1.1"
      "wms_format" "image/jpeg"
    END

    PROJECTION
      "init=epsg:4326"
    END
  END # Modis WMS image ends here

  LAYER # States line layer begins here
    NAME         "states"
    DATA         "states_ugl.shp"
    STATUS       OFF
    TYPE         LINE

    PROJECTION
      "init=epsg:4326"
    END

    CLASSITEM    "CLASS"
    CLASS
      NAME       'State Boundary'
      EXPRESSION 'land'
      STYLE
        SYMBOL     'line5'
        COLOR      32 32 32
        SIZE       1
      END
    END
  END # States line layer ends here
  
  # End of LAYER DEFINITIONS -------------------------------

END # end of map file
