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  1. %  --------------------------------------------------------------------
  2. %  ----------- CorelDRAW USER-DEFINED SPOT FUNCTONS FILE  -------------
  3. %  --------------------- For PDF PUBLISHING  --------------------------
  4. %  --------------------------------------------------------------------
  5. %
  6. %    
  7. %     A "Spot" function is a function that takes two floating point arguments,
  8. %     X and Y, both between -1 and 1,  and returns a single real value between
  9. %     -1 and 1 (otherwise an execution error occurs) called Z.
  10. %     The domain is a 2 X 2 rectangle that will be mapped (at print time) into
  11. %     each cell of the halftoning screen.
  12. %     The 3-D representation of the function Z = f(X,Y) (does not need
  13. %     to be continuous but f(X,Y) must be defined for all -1 <= X, Y <= 1 )
  14. %     is a surface whose higher points will be whitened first in each cell.
  15. %     For more information about spot functions look at the Portable Document 
  16. %  Format Reference Manual (By Adobe Systems Inc.).
  17. %
  18. %
  19. % SYNTAX FOR THIS FILE:
  20.  
  21. % - A function definition starts with a "%@Spot" comment line starting 
  22. %   in column one indicating that a spot function is about to be 
  23. %   defined.  The name of the spot function comes right after that
  24. %
  25.  
  26.  
  27. %@Spot /Diamond2
  28. <<
  29. /FunctionType 0
  30. /Domain [-1 1 -1 1]
  31. /Range [-1 1]
  32. /BitsPerSample 8
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  34. /Length 305
  35. /Filter [/ASCII85Decode /FlateDecode]
  36. >>
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  42. nF;;:Xq!GL6\PX!QT3oDQNQ(X38ieG!"T\X-i~>
  43. endstream
  44.  
  45.  
  46. %@Spot /DoubleDot
  47. <<
  48. /FunctionType 0
  49. /Domain [-1 1 -1 1]
  50. /Range [-1 1]
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  80.  
  81.  
  82. %@Spot /Grid
  83. <<
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  91. >>
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  97. endstream
  98.  
  99.  
  100. %@Spot /Line
  101. <<
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  114.  
  115.  
  116. %@Spot /Lines
  117. <<
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  119. /Domain [-1 1 -1 1]
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  130.  
  131.  
  132. %@Spot /MicroWaves
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  163.  
  164. %@Spot /OutCircleBlk
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  191.  
  192.  
  193. %@Spot /OutCircleWhi
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  220.  
  221.  
  222. %@Spot /Star
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