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   25 #ifndef __SYNFIG_SPIRALGRADIENT_H 
   26 #define __SYNFIG_SPIRALGRADIENT_H 
   43 using namespace synfig;
 
   63     Color color_func(
const Point &x, 
float supersample=0)
const;
 
   65     float calc_supersample(
const Point &x, 
float pw,
float ph)
const;
 
   81     virtual Vocab get_param_vocab()
const;