testcases/phpCairo/degenerate-arc.php

   1 <?
   2 $sur = new CairoImageSurface(FORMAT_ARGB32, 40, 40);
   3 $con = new CairoContext($sur);
   4
   5 $con->setSourceRgb(1,1,1);
   6 $con->paint();
   7 $con->setLineCap(LINE_CAP_ROUND);
   8 $con->setLineWidth(5);
   9
  10 $con->setSourceRgb(0,1,0);
  11
  12 for($n=0;$n<8;$n++) {
  13         $theta = $n * 2 * M_PI / 8;
  14         $con->newSubPath();
  15         $con->arc(20, 20, 15, $theta, $theta);
  16         $con->closePath();
  17 }
  18
  19 $con->stroke();
  20
  21 $con->setLineWidth(2);
  22 $con->setSourceRgb(0,0,1);
  23
  24 for($n=0;$n<8;$n++) {
  25     $theta = $n * 2 * M_PI / 8;
  26         $con->moveTo(20,20);
  27         $con->arc(20,20,15, $theta, $theta);
  28     $con->closePath();
  29 }
  30
  31 $con->stroke();
  32 $con->setSourceRgb(1,0,0);
  33 $con->arc(20,20,2,0,2*M_PI);
  34 $con->fill();
  35
  36 $sur->writeToPng("degenerate-arc-php.png");
  37 ?>