/**
* PlotType [Constructor]
*
* Valid values for multiType are:
*
* 'normal' Plot is normal, multiple datasets are displayes next to one
* another
*
* 'stacked' Datasets are stacked on top of each other
*
* 'stacked100pct' Datasets are stacked and displayed as percentages of the
* total sum
*
* I no title is specified a default is used, which is basically the plot
* type (fx. for a 'Image_Graph_Plot_Smoothed_Area' default title is
* 'Smoothed Area')
*
* @param Image_Graph_Dataset $dataset The data set (value containter) to
* plot or an array of datasets
* @param string $multiType The type of the plot
* @param string $title The title of the plot (used for legends,
* {@link Image_Graph_Legend})
*/
function Image_Graph_Plot(&$dataset, $multiType = 'normal', $title = '')
{
if (!is_a($dataset, 'Image_Graph_Dataset')) {
if (is_array($dataset)) {
$keys = array_keys($dataset);
foreach ($keys as $key) {
if (!is_a($dataset[$key], 'Image_Graph_Dataset')) {
$this->_error('Invalid dataset passed to ' . get_class($this));
}
}
unset($keys);
} else {
$this->_error('Invalid dataset passed to ' . get_class($this));
}
}
parent::Image_Graph_Common();
if ($dataset) {
if (is_array($dataset)) {
$this->_dataset =& $dataset;
} else {
$this->_dataset = array(&$dataset);
}
}
if ($title) {
$this->_title = $title;
} else {
$this->_title = str_replace('_', ' ', substr(get_class($this), 17));
}
$multiType = strtolower($multiType);
if ($multiType == 'normal' || $multiType == 'stacked' || $multiType == 'stacked100pct') {
$this->_multiType = $multiType;
} else {
$this->_error('Invalid multitype: ' . $multiType . ' expected (normal|stacked|stacked100pct)');
$this->_multiType = 'normal';
}
}
