Paint2d double buffering?

[alastairraeii]

I'm evaluating RichFaces for some new projects. One of our requirements is to render scrolling charts.

The rich:paint2d component is a neat why of rendering, say, a JFreeChart. I can add a a4j:poll to pull down an updated chart but there's an ugly flashing while painting the new image.

I'm sure I can't be the only person who has this problem. Is there a way to double buffer or fade one image over the other?

TIA.

[nbelaevski]

Hello,

Please take a look at rich:effect component page at livedemo.

[alastairraeii]

"nbelaevski" wrote:
Please take a look at rich:effect component page at livedemo.

It is not clear to me how rich:effect can be used to overlay one image with another?

[ilya_shaikovsky]

if you reRender the whole image it will blink for sure. And Nick just meant that you could use effects in order to shown new resource more smoothly.