Hi Prasad,
This probably won't help you, as these are are custom VelocityMacros we include in our system. (an online simulation engine called Forio Broadcast). The source is not available, but the macros are fairly simple. (they just translate names of variables into a img tag with a long URL). Really, they're just a convenience.
Still, if you're interested you can read our documentation. "Revenue" and "Costs" are simulation variables specific to our particular system (basically, they are a series of double values arrayed over time).
http://www.forio.com/broadcastdocs/creating_interfaces/how_to_create_graphs.htm
For more info on Velocity macros, read the Velocity docs. http://jakarta.apache.org/velocity/user-guide.html#Velocimacros
For more info on how to create your own graph servlet, you'll have to read the docs of the third-party graphing library you end up choosing.
WILL
----- Original Message ----- From: "prasad neo" <[EMAIL PROTECTED]>
To: "Velocity Users List" <velocity-user@jakarta.apache.org>
Sent: Monday, February 14, 2005 11:44 PM
Subject: Re: graphs using velocity
how to build these varibles revenue and Costs. what is its datatype. Is there any documentation for these macros if it is then please send me links.
--- Will Glass-Husain <[EMAIL PROTECTED]> wrote:http://www.forio.com/broadcastdocs/creating_interfaces/how_to_create_graphs.htmPS. One nice way Velocity can help with graphs is through macros. If you end up with a long complicated <img> url to generate a graph, abstract this with a macro. Our Velocity-based system has a number of graph related macros.
src="graph?FD_rand=1861&FD_graph=1&VariableName=Revenue&VariableName=Costs&Width=400&Height=300"
For example, in our system the macro #LineGraph (["Revenue", "Costs"] 400 300)
generates the text
<img
---------------------------------------------------------------------
width="400" height="300">
which instructs our custom-written graph servlet to generate a graph of the variables revenue and costs over time (in a GIF image sized 400x300).
Best, WILL
----- Original Message ----- From: "prasad neo" <[EMAIL PROTECTED]>
To: "Velocity Users List"
<velocity-user@jakarta.apache.org>
Sent: Monday, February 14, 2005 11:15 PM
Subject: Re: graphs using velocity
> thanks Will Glass-Husain.
> I will try jfree tool.
> ok bye
>
>
>
> --- Will Glass-Husain <[EMAIL PROTECTED]> wrote:
>> Hi,
>>
>> I have a Velocity based web application that
>> includes graphs. I don't use
>> velocity to generate graphs, I use a third party
>> graphing app. My web page
>> includes a img tag with a special URL which
displays
>> a JPEG or GIF graph.
>>
>> There's a couple of different libraries that can
>> generate the graphs. You
>> might try JFreeChart if you're looking for a free
>> library. Personally, I
>> really like the commercial but inexpensive
package
>> KavaCharts (includes both
>> server and client side components). There's also
a
>> number of much more
>> expensive server-side tools.
>>
>> WILL
>>
>> ----- Original Message ----- >> From: "prasad neo" <[EMAIL PROTECTED]>
>> To: "Velocity Users List"
>> <velocity-user@jakarta.apache.org>; "Shinobu
>> Kawai" <[EMAIL PROTECTED]>
>> Sent: Monday, February 14, 2005 10:53 PM
>> Subject: graphs using velocity
>>
>>
>> > Hii all
>> > Can anybody tell me way to generate
graphs
>> > using velocity.
>> > In my project i need to generate all
types
>> of
>> > graphs using my database I am using Turbine
>> framework
>> > and torque for database and velocity as
template
>> > engine.
>> >
>> > so please help me
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > --- Shinobu Kawai <[EMAIL PROTECTED]>
wrote:
>> >> Hi Nathan,
>> >>
>> >> > > > no, i don't think it's documented
anywhere.
>> >> any good idea for where
>> >> > > > such a note should go?
>> >> > >
>> >> > > I would definitely want one in the VVS
>> javadoc
>> >> and/or view tool top
>> >> > > page.
>> >> >
>> >> > wanna make a patch? :)
>> >>
>> >> I'll file a bugzilla issue for you. ;)
>> >> ## I'll make the patch if I have some extra
time.
>> >>
>> >> > >Would it be comfortable in the Velocity
>> developer
>> >> guide?
>> >> >
>> >> > i dunno, but certainly not unless/until the
VVS
>> >> makes it in there too.
>> >>
>> >> Figured you would say that. :)
>> >>
>> >> Best regards,
>> >> -- Shinobu
>> >>
>> >> --
>> >> Shinobu Kawai <[EMAIL PROTECTED]>
>> >>
>> >>
>> >
>>
>
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