/**
* Create the plotarea, implicitely creates 2 normal axis
*/
function __construct()
{
parent::__construct();
$this->_padding = array('left' => 10, 'top' => 10, 'right' => 10, 'bottom' => 10);
$this->_axisX =& Image_Graph::factory('Image_Graph_Axis_Radar');
$this->_axisX->_setParent($this);
$this->_axisY =& Image_Graph::factory('Image_Graph_Axis', IMAGE_GRAPH_AXIS_Y);
$this->_axisY->_setParent($this);
$this->_axisY->_setMinimum(0);
}
/**
* Create the plotarea, implicitely creates 2 normal axis
*/
function Image_Graph_Plotarea_Radar()
{
parent::Image_Graph_Element();
$this->_padding = 10;
$this->_axisX =& Image_Graph::factory('Image_Graph_Axis_Radar');
$this->_axisX->_setParent($this);
$this->_axisY =& Image_Graph::factory('Image_Graph_Axis', IMAGE_GRAPH_AXIS_Y);
$this->_axisY->_setParent($this);
$this->_axisY->_setMinimum(0);
}
/**
* Update coordinates
*
* @return void
* @access private
*/
function _updateCoords()
{
parent::_updateCoords();
$mapAspectRatio = $this->_mapSize['X'] / $this->_mapSize['Y'];
$plotAspectRatio = ($width = $this->_fillWidth()) / ($height = $this->_fillHeight());
$scaleFactorX = $mapAspectRatio > $plotAspectRatio;
if ($this->_mapSize['X'] <= $width && $this->_mapSize['Y'] <= $height || $this->_mapSize['X'] >= $width && $this->_mapSize['Y'] >= $height) {
if ($scaleFactorX) {
$this->_scale = $width / $this->_mapSize['X'];
} else {
$this->_scale = $height / $this->_mapSize['Y'];
}
} elseif ($this->_mapSize['X'] < $width) {
$this->_scale = $height / $this->_mapSize['Y'];
} elseif ($this->_mapSize['Y'] < $height) {
$this->_scale = $width / $this->_mapSize['X'];
}
$this->_plotLeft = ($this->_fillLeft() + $this->_fillRight() - $this->_mapSize['X'] * $this->_scale) / 2;
$this->_plotTop = ($this->_fillTop() + $this->_fillBottom() - $this->_mapSize['Y'] * $this->_scale) / 2;
$this->_plotRight = ($this->_fillLeft() + $this->_fillRight() + $this->_mapSize['X'] * $this->_scale) / 2;
$this->_plotBottom = ($this->_fillTop() + $this->_fillBottom() + $this->_mapSize['Y'] * $this->_scale) / 2;
}
