org.zkoss.zul.impl
Interface ChartEngine

All Known Implementing Classes:

JFreeChartEngine

public interface ChartEngine

Chart engine is an engine that do the real chart rendering. This interface defines the chart engine for components like Chart use to get the value of each data and the size of the chart data.

Author:

henrichen

See Also:

Chart, ChartModel, ChartAreaListener

Method Summary

byte[]

drawChart(java.lang.Object data) Draw the chart and render into image format as an byte array.

Method Detail

drawChart

byte[] drawChart(java.lang.Object data)

Draw the chart and render into image format as an byte array.

Parameters:

data - the data used in drawing a chart; depends on implementation.