How to use .chart file to display chart on webpage?

Allen2009

Hi everybody,

I'm new to BIRT, thanks a lot for so many tutorials here.

I want to use a .chart file to show my Chart(created by Chart Engine API) on jsp.


Could anyone give me an example?

By the way , how to create a .chart file?

to show a chart on webpage, we can create a png file and save it, then show the chart by using <img src= "imagename.png"/>(example :standalonechart)

or we can use .chart file (unknown how).

Is it possible to show a chart on webpage by using variable in Backingbean?
like:
in Bean:
Chart myChart = createLineChart();
OR
Image myChart = new Image(Display.getCurrent(), size.width,size.height);
gc = new GC(myChart)
...
gr.render(render,state);
(from ChartCanvas.java by com.ibm.examples.chart)

then:
session.setAttribute("chart", myChart);

in jsp using some Tags from BIRT:
<% Chart myChart = session.getAttribute("chart"); %>
<chart: someTag -- show myChart here-- />

any help please.

Thanks in advance !!

Liang