Dynamically generation of charts, graphs, curves

Hi,
I would like to know how dynamical
generation of:

- charts
- graphs
- curves

are done best from either Servlet
or PHP enviroment.

Thank you in advance

not sure about php or others but there is perl module designed to do that kind of thing

i think 'at the forge' (http://lerner.co.il/atf/) covered it

u can use php to generate dynamically
what u want
php is a 'son' of perl and allows u to do it like perl

u can have details on www.php.net

PHP can be compiled with support for on-the-fly graphics creation using the gd image library (http://www.boutell.com/gd). This is a very nice, tight little piece of software that generates images so fast, it seems like they just came off the hard drive.

With gd, PHP can create PNG, or Jpeg graphics using many pre-defined functions for curves, shapes, etc..., and it can interface with the Freetype library (www.freetype.org) to use TTF fonts also.

A beginning tutorial is at http://www.phpbuilder.com/columns/r...124.php3?page=1

Another: http://www.phpwizard.net/resources/...mic_images.html

Also, look up "image creation" at www.php.net

It can be a real pain to configure PHP with gd and Freetype. Let us know here if you need any help in this area.

[This message has been edited by rycamor (edited July 24, 2000).]

If you simply want to provide a dynamically generated graph image on the page for your visitors then there are pre-built and fully tests PHP graphing packages around that will allow you to quickly build this into your application.
(e.g. Advanced Graphs and Charts for PHP by JPowered )

Or as alternative you could consider a front end JavaScript solution. These have the advantage that not only do they build the graph dynamically but also can provide your visitors with interactive features.

Thanks for sharing such information.
In php we can design chart, graph, in easy ways so I think it best. since it's programming is easy than other technology.