Re: Simple 2d graphing in web page - where to begin



On Jan 28, 5:14 pm, "James Harris" <james.harri...@xxxxxxxxxxxxxx>
wrote:
My Googling has let me down here - maybe because when it comes to Java
I don't really know which type I need! If someone could point me in
the right direction I'd appreciate it.

My requirement is simple: to display a 2-d graph within a web page
where the X and Y values are taken from a database (residing on the
server hosting the web pages). The GUI is to allow panning forwards
and backwards over time (the X values are 32-bit timestamps) and
zooming in and out. That's about it. It would be a bonus if there were
a time display of the cursor position as it is moved over the image.

Java noob question: what /type/ of Java would I need? I see there are
applets, servlets, beans and swing components... oh and Javascript
thrown in to the equation. I don't know where to begin!

I notice that IE warns about the security of some embedded components
but not others. Anyone know what makes the difference?

Is there any existing code that will do the 2-d graphing, as above,
that I could modify? Is there an existing package that will do all of
what I want? It seems a pretty basic requirement.

Lastly, and thanks for staying with me, could you recommend any books
that would provide suitable source code - e.g. a Java or Javascript
cookbook?

--
TIA,
James

This really sounds like a good place for a multi-tier solution. You
would have a server or servlet application that access the database,
and a client side application (maybe using Applet or Java Web Start)
that renders the graphs.

It might actually be better to make the front-end a Flash file if you
are more concerned with "pretty rendering" than business logic on the
front end. If the display were more static, you might consider using
a servlet to render it server side, and not worry about client-side
applications.

There are really a lot of options for this. I personally would
probably start with a pure servlet/jsp implementation, which rendered
an html page and a PNG image using java imageio. Mostly because thats
what I already know.

Hope this helps,
Daniel

.

Relevant Pages

  • Re: Client-Server to Web App
    ... it possible to keep a connection open to the C++ server between ... The downside is if the C/C++ server side piece is not thread safe. ... Below is a Java ... If you called this class from a standard Java Servlet, for instance, since ...
    (borland.public.delphi.non-technical)
  • Re: Velocity
    ... > If he asks me to go deep into java, there is something I need to know. ... suggest "Java Servlet Programming" by Jason Hunter, ... Finally, if you're going to do any Struts programming at all, ... you should seriously consider installing an IDE such as Eclipse ...
    (comp.lang.java.programmer)
  • Re: Java Servlet counterpart in .Net?
    ... John Timney (MVP) ... wich I can create a web application and decide if I will deploy it on Java ... The closest you probably have to a true servlet is the code behind model ...
    (microsoft.public.dotnet.framework.aspnet)
  • Servlet being called multiple times from JSP...
    ... and somehow the SubmitPTO servlet is called TWICE! ... gets called twice even though I see the error messages display. ... When I check the log, I can see that the error messages are displayed, ...
    (comp.lang.java.programmer)
  • Re: Servlet To Java Application Communication
    ... I would like to write a Java servlet that it will be able to ... way to communicate with a servlet. ... probably know you should encode the request XML in the body part of a POST ... and expect the response XML in the response content. ...
    (comp.lang.java.databases)