!7

import java.awt.geom.*;

sclass Quadrant {
  bool a, b, c, d;
}

p {
  BufferedImage img = loadBufferedImage(#1006973);
  BWImage bw = getAlphaChannel(img);
  Image2B alpha = new Image2B(bw);
  
  int w = alpha.w(), h = alpha.h();
  
  Path2D.Float path = new Path2D.Float();
  
  int y = -1;
  yloop: while (y < h) {
    for (int x = -1; x < w; x++) {
      Quadrant q = getQuadrant(alpha, x, y);
      if (alpha.getPixel(x, y))
    ++y;
  }
  
  path.moveTo(10, 10);
  path.lineTo(20, 10);
  path.lineTo(20, 20);

  showImage(alpha);
  showImage(renderShape(path, w, h));
}