include/freenet/captcha/easybmp/EasyBMP_Geometry.h

   1 /*************************************************\r
   2 *                                                *\r
   3 *  EasyBMP Cross-Platform Windows Bitmap Library * \r
   4 *                                                *\r
   5 *  Author: Paul Macklin                          *\r
   6 *   email: pmacklin@math.uci.edu                 *\r
   7 *                                                *\r
   8 *    file: EasyBMP_Geometry.h                    *\r
   9 *    date: 2-21-2005                             *\r
  10 * version: 1.05.00                               *\r
  11 *                                                *\r
  12 *   License: BSD (revised)                       *\r
  13 * Copyright: 2005-2006 by the EasyBMP Project    * \r
  14 *                                                *\r
  15 * description: draw simple geometric objects     *\r
  16 *                                                *\r
  17 *************************************************/\r
  18 \r
  19 #include "EasyBMP.h"\r
  20 \r
  21 int ebmpRound( double input );\r
  22 double InverseAngle( double Xdir, double Ydir );\r
  23 double LineFunction( double SlopeX , double SlopeY, \r
  24                      int StartX, int StartY, double TestX, double TestY );\r
  25 void DrawAALine( BMP &Image , int FromX, int FromY, \r
  26                  int ToX, int ToY , RGBApixel Color );\r
  27 void DrawFastLine( BMP &Image , int FromX, int FromY, \r
  28                    int ToX, int ToY , RGBApixel Color );\r
  29 void DrawArc( BMP &Image , double CenterX, double CenterY , double Radius, \r
  30               double FromTheta, double ToTheta , RGBApixel Color );\r
  31 void DrawLine( BMP &Image , int FromX , int FromY, \r
  32                int ToX, int ToY, RGBApixel Color );\r
  33 \r