Assignment 3 Bezier Curves

a

void setup()

{

  size(200,600);

  background(0);

  stroke(255);

}

void draw()

{

  LinCurv(15,150,75,15);

  LinCurv(50,120,120,160);

  LinCurv(130,130,170,25);

  QuadCurv(50,370,80,210,110,270);

  QuadCurv(90,380,140,290,190,390);

  CubicCurv(50,570,40,500,100,490,150,580);

  CubicCurv(120,500,110,410,170,420,190,510);

}

void LinCurv(int x0, int y0, int x1, int y1)

{

  for(float t=0; t <>

  {

    float x,y;

    

    x = x0 *(1-t)+ t * x1;

    y = y0 *(1-t)+ t*y1;

    point(x, y);

  }

}

void QuadCurv(int x0, int y0, int x1, int y1, int x2, int y2)

{

  float x,y;

  for(float t=0; t<>

  {

    x= (1-t)*(1-t)*x0 + 2*(1-t)*t*x1 + t*t*x2;

    y= (1-t)*(1-t)*y0 + 2*(1-t)*t*y1 + t*t*y2;

    point(x,y);

  }

}

void CubicCurv(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3)

{

  float x, y;

  for(float t = 0 ; t <>

  {

    x= (1-t)*(1-t)*(1-t)*x0 + 3 *(1-t)*(1-t)*t*x1+ 3*(1-t)*(1-t)*t*t*x2 + t*t*t*x3;

    y= (1-t)*(1-t)*(1-t)*y0 + 3 *(1-t)*(1-t)*t*y1+ 3*(1-t)*(1-t)*t*t*y2 + t*t*t*y3;

    point(x,y);

  }

}