Class: ezcGraphLineChart  - X-Ref

Class for line charts. Can make use of an unlimited amount of datasets and
will display them as lines by default.
X axis:
- Labeled axis
- Centered axis label renderer
Y axis:
- Numeric axis
- Exact axis label renderer

<code>
// Create a new line chart
$chart = new ezcGraphLineChart();

// Add data to line chart
$chart->data['sample dataset'] = new ezcGraphArrayDataSet(
array(
'100' => 1.2,
'200' => 43.2,
'300' => -34.14,
'350' => 65,
'400' => 123,
)
);

// Render chart with default 2d renderer and default SVG driver
$chart->render( 500, 200, 'line_chart.svg' );
</code>

Each chart consists of several chart elements which represents logical
parts of the chart and can be formatted independently. The line chart
consists of:
- title ( {@link ezcGraphChartElementText} )
- legend ( {@link ezcGraphChartElementLegend} )
- background ( {@link ezcGraphChartElementBackground} )
- xAxis ( {@link ezcGraphChartElementLabeledAxis} )
- yAxis ( {@link ezcGraphChartElementNumericAxis} )

The type of the axis may be changed and all elements can be configured by
accessing them as properties of the chart:

<code>
$chart->legend->position = ezcGraph::RIGHT;
</code>

The chart itself also offers several options to configure the appearance.
The extended configure options are available in
{@link ezcGraphLineChartOptions} extending the {@link ezcGraphChartOptions}.