/**
* Get the axis intersection pixel position
*
* This is only to be called prior to output! I.e. between the user
* invokation of Image_Graph::done() and any actual output is performed.
* This is because it can change the axis range.
*
* @param double $value the intersection value to get the pixel-point for
*
* @return double The pixel position along the axis
* @access private
*/
function _intersectPoint($value)
{
if ($value <= 0 && $value !== 'max' && $value !== 'min') {
$value = 1;
}
return parent::_intersectPoint($value);
}
