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/****************************************************************/
/* This sample program will annotate the county names on a map  */
/* of Nevada.  It uses the %maplabel annotate macro to create   */
/* the annotate data set used with the GMAP procedure.          */
/* This annotate macro is available beginning with Version 9 of */
/* the SAS System.                                              */
/****************************************************************/
 
goptions reset=all;

/* Create a projected map of Nevada with county boundaries */

proc gproject data=maps.counties out=nevada;

  /* State FIPS for Nevada */
  where state=32;
  id state county;
run;
quit;

/* Create a data set containing the names of the counties */
/* in Nevada.                                             */

data nvnames;
  set maps.cntyname;

  /* State FIPS for Nevada */
  where state=32;
run;

/* Make the annotate macros available */

%annomac;

/* Use the maplabel annotate macro to create an annotate data set    */
/* to label the counties                                             */
/* The macro parameters are:                                         */
/*   <map-ds>   Input Map data set                                   */
/*   <attr-ds>  Attribute data set that contains var for label       */
/*   <out-ds>   Resulting output data set for use in ANNO= in GMAP   */
/*   <var>      Variable for label on <attr-ds>.  Can be text or num */
/*   <ids>      Space-separated list of IDs that the map and attr    */
/*              data sets are sorted on.                             */
/*   FONT=      Font for the label.  Default is SWISS.               */
/*   COLOR=     Color of the label.  Devault is BLACK.               */
/*   SIZE=      Size of the label.  Default is 1 <unit>              */
/*   HSYS=      UNIT system for SIZE=.  Default is 3 (PERCENT)       */

%maplabel(nevada,nvnames,anno,countynm,state county,font='swiss',color=blue);

title "County Map of Nevada";
pattern1 v=me c=black r=15;

/* Generate a county map of Nevada with county labels */

proc gmap data=nevada map=nevada;
  id state county;
  choro county / anno=anno nolegend;
run;
quit;

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