testcases/phpCairo/degenerate-pen.php

   1 <?
   2 $sur = new CairoImageSurface(FORMAT_RGB24,165, 30);
   3 $con = new CairoContext($sur);
   4 $con->moveTo(0,0);
   5
   6         $con->setSourceRgb ( 1, 1, 1);
   7     $con->paint ();
   8
   9     $con->setSourceRgb ( 0, 0, 0);
  10         $con->moveTo(0,0);
  11     $con->translate ( 5, 5);
  12
  13     /* First compress the pen to a vertical line. */
  14     $con->rectangle ( 0, 0, 20, 20);
  15     $con->curveTo ( 20 / 2, 0, 20, 20 / 2, 20, 20);
  16     $con->save ();
  17     {
  18         $con->scale ( 0.00001, 1.0);
  19         $con->stroke ();
  20     }
  21     $con->restore ();
  22
  23     $con->translate ( 5 + 20, 0);
  24
  25     /* Then compress the pen to a horizontal line. */
  26     $con->rectangle ( 0, 0, 20, 20);
  27     $con->curveTo ( 20 / 2, 0, 20, 20 / 2, 20, 20);
  28     $con->save ();
  29     {
  30         $con->scale ( 1.0, 0.00001);
  31         $con->stroke ();
  32     }
  33     $con->restore ();
  34
  35     $con->translate ( 5 + 20, 0);
  36
  37     /* Finally a line at an angle. */
  38     $con->rectangle ( 0, 0, 20, 20);
  39     $con->curveTo ( 20 / 2, 0, 20, 20 / 2, 20, 20);
  40     $con->save ();
  41     {
  42         $con->rotate ( M_PI / 4.0);
  43         $con->scale ( 0.00001, 1.0);
  44         $con->stroke ();
  45     }
  46     $con->restore ();
  47 $con->setSourceRgb ( 1, 1, 1);
  48     $con->paint ();
  49
  50     $con->setSourceRgb ( 0, 0, 0);
  51     $con->setLineJoin (LINE_JOIN_ROUND);
  52
  53     $con->translate ( 5, 5);
  54
  55     /* First compress the pen to a vertical line. */
  56     $con->rectangle ( 0, 0, 20, 20);
  57     $con->curveTo ( 20 / 2, 0, 20, 20 / 2, 20, 20);
  58     $con->save ();
  59     {
  60         $con->scale ( 0.00001, 1.0);
  61         $con->stroke ();
  62     }
  63     $con->restore ();
  64
  65     $con->translate ( 5 + 20, 0);
  66
  67     /* Then compress the pen to a horizontal line. */
  68     $con->rectangle ( 0, 0, 20, 20);
  69     $con->curveTo ( 20 / 2, 0, 20, 20 / 2, 20, 20);
  70     $con->save ();
  71     {
  72         $con->scale ( 1.0, 0.00001);
  73         $con->stroke ();
  74     }
  75     $con->restore ();
  76
  77     $con->translate ( 5 + 20, 0);
  78
  79     /* Finally a line at an angle. */
  80     $con->rectangle ( 0, 0, 20, 20);
  81     $con->curveTo ( 20 / 2, 0, 20, 20 / 2, 20, 20);
  82     $con->save ();
  83     {
  84         $con->rotate ( M_PI / 4.0);
  85         $con->scale ( 0.00001, 1.0);
  86         $con->stroke ();
  87     }
  88     $con->restore ();
  89         $sur->writeToPng("degenerate-pen-php.png");
  90 ?>