So what is the technology behind Google finance? This seems to me to be Ajax-powered, client-side created charts and graphs...
On Sun, Aug 30, 2009 at 8:56 AM, Sri <[email protected]> wrote: > > There are multiple ways to achieve this - > > If you want to continue generating images in java, you will also have > to write a Servlet which returns the BufferedImage in one of the > formats (gif/jpeg etc). Then, in your ImageWidget you would give the > URL for your servlet. In the servlet, you would do something like this > - > a) Read the request parameters and created a BufferedImage > b) Set the appropriate content-type request headers to the tell the > browser that you are sending an image ('image/jpg' or 'image/gif' > etc) > c) Use the ImageIO class to copy the BufferedImage to the servlets > output stream > > You can also take a look at FusionCharts. It provides a flash based > client side graph/chart library. In this case, you would have to > create an XML in your client side code and then pass it to > FusionCharts using its Javascript API. > > > > On Aug 29, 8:47 pm, Nether <[email protected]> wrote: > > My goal is to make a chart which shows standard deviations as a > > gradient on the vertical axis. I don't think it is easy to do this in > > the browser, so what I plan on doing is having the server render the > > chart to a BufferedImage and sending that to the client to display in > > an "Image" widget. > > > > The problem is that the Image widget only takes a URL, but how do I > > give it a bufferedimage? > > > > Also, is this the best solution for me to be using for making this > > gradient chart? > > > > Thanks for your time. > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en -~----------~----~----~----~------~----~------~--~---
