Identifier     symgen

 Purpose        generate vectors for user defined symbols

 Synopsis       symgen, symx, symy, syml

 Arguments      Name      I/O  Type           Description
                -----------------------------------------------------
                symx       O   fltarr(10,17)  array of 10 vectors containig 
                                              the x coordinates
                symy       O   fltarr(10,17)  array of 10 vectors containig 
                                              the y coordinates
                syml       O   intarr(10)     vector of length 10 containig 
                                              the number of polygons
                
 Returns        ---

 Description    The SYMGEN procedure generates vectors for user defined
                symbols:
                -  square
                -  diamond
                _  circle
                -  triangle down
                -  triangle up
                -  star
                -  "bow tie"
                -  "hour glass"
                -  hexagon
                -  hexagon with cross

 Comment        ---

 Example        SYMGEN,Symx,Symy,Syml

 Dependencies   CALLS: --
                CALLED FROM: set_usersym.pro

 Category       UTIL

 Filename       symgen.pro

 Author         A.Fiedler  (--> AF)

 Version        1.0

 History        1.0   July 1993   AF