src/line.cpp

   1 #include "line.h"
   2
   3 // line::line(Coord start_x, Coord start_y, Coord end_x, Coord end_y)
   4 //  : displayed_obj()
   5 // {
   6 //   s_x = start_x;
   7 //   s_y = start_y;
   8 //   e_x = end_x;
   9 //   e_y = end_y;
  10 //
  11 //   projection_x = fabs ( - end_x + start_x  );
  12 //   projection_y = fabs ( - end_y + start_y  );
  13 //
  14 //   length = sqrt ( pow ( projection_x, 2 ) +
  15 //                   pow ( projection_y, 2 )
  16 //            );
  17 //
  18 //   rotation = atan(projection_y / projection_x) - fast_math::pi/2;
  19 //
  20 //
  21 // PR(projection_x);
  22 // PR(projection_y);
  23 // PR(rotation);
  24 // PR(length);
  25 // PR(s_x);
  26 // PR(s_y);
  27 //
  28 //
  29 // }
  30
  31 line::line(Coord start_x, Coord start_y, Angle rot, Length len) : displayed_obj() {
  32
  33   s_x = start_x;
  34   s_y = start_y;
  35   rotation = rot;
  36   length = len;
  37
  38   projection_x = length * cos (rotation);
  39   projection_y = length * sin (rotation);
  40
  41 }
  42
  43 line::~line()
  44 {
  45 }
  46
  47
  48 /*!
  49     \fn line::display()
  50  */
  51 void line::display()
  52 {
  53     static double toDegrees = fast_math::pi2 / 360;
  54 //    static GLfloat depth = -5.5f;
  55
  56     glPushMatrix();
  57
  58     glColor3f(1.0,1.0,1.0);
  59
  60     glTranslatef(s_x, s_y, 0);
  61     glRotated(rotation / toDegrees, 0.0f, 0.0f, 1.0f);
  62     glBegin( GL_LINES );
  63       glVertex2f( 0, 0);
  64       glVertex2f( 0, length);
  65     glEnd();
  66
  67     glPopMatrix();
  68
  69 }
  70
  71
  72 /*!
  73     \fn line::calculate()
  74  */
  75 void line::calculate()
  76 {
  77     /// @todo implement me
  78 }