/**
* Draws a sector of cirlce
*
* @param ezcGraphCoordinate $center Center of circle
* @param mixed $width Width
* @param mixed $height Height
* @param mixed $startAngle Start angle of circle sector
* @param mixed $endAngle End angle of circle sector
* @param ezcGraphColor $color Color
* @param mixed $filled Filled
* @return void
*/
public function drawCircleSector(ezcGraphCoordinate $center, $width, $height, $startAngle, $endAngle, ezcGraphColor $color, $filled = true)
{
$image = $this->getImage();
$drawColor = $this->allocate($color);
// Normalize angles
if ($startAngle > $endAngle) {
$tmp = $startAngle;
$startAngle = $endAngle;
$endAngle = $tmp;
}
if ($endAngle - $startAngle > 359.99999) {
return $this->drawCircle($center, $width, $height, $color, $filled);
}
// Because of bug #45552 in PHPs ext/GD we check for a minimal distance
// on the outer border of the circle sector, and skip the drawing if
// the distance is lower then 1.
//
// See also: http://bugs.php.net/45552
$startPoint = new ezcGraphVector($center->x + cos(deg2rad($startAngle)) * $width / 2, $center->y + sin(deg2rad($startAngle)) * $height / 2);
if ($startPoint->sub(new ezcGraphVector($center->x + cos(deg2rad($endAngle)) * $width / 2, $center->y + sin(deg2rad($endAngle)) * $height / 2))->length() < 1) {
// Skip this circle sector
return array();
}
if ($filled) {
imagefilledarc($image, $this->supersample($center->x), $this->supersample($center->y), $this->supersample($width), $this->supersample($height), $startAngle, $endAngle, $drawColor, IMG_ARC_PIE);
} else {
imagefilledarc($image, $this->supersample($center->x), $this->supersample($center->y), $this->supersample($width), $this->supersample($height), $startAngle, $endAngle, $drawColor, IMG_ARC_PIE | IMG_ARC_NOFILL | IMG_ARC_EDGED);
}
// Create polygon array to return
$polygonArray = array($center);
for ($angle = $startAngle; $angle < $endAngle; $angle += $this->options->imageMapResolution) {
$polygonArray[] = new ezcGraphCoordinate($center->x + cos(deg2rad($angle)) * $width / 2, $center->y + sin(deg2rad($angle)) * $height / 2);
}
$polygonArray[] = new ezcGraphCoordinate($center->x + cos(deg2rad($endAngle)) * $width / 2, $center->y + sin(deg2rad($endAngle)) * $height / 2);
return $polygonArray;
}
public function testVectorSubVector()
{
$vector = new ezcGraphVector(1, 2);
$result = $vector->sub(new ezcGraphVector(3, 2));
$this->assertEquals($vector, new ezcGraphVector(-2, 0));
$this->assertEquals($result, $vector, 'Result should be the vector itself');
}
