Quick
Start Tutorials - Supplying the Data via Plain Text
Files
This method is ideal where the chart data is fairly
static. With this method chart data may be updated without
editing the HTML page.
This method is also useful where both Applet and Servlet
forms of the graph are implemented and it is required
that identical chart images are presented in either
case.
( e.g. where both interactive and printing ability must
be presented to the user, See Documentation - Graph
Printing.)
This method may be applied to both Applet & Servlet
forms of the graph.
Method Outline
This method involves incorporating the graphing applet
(or Servlet) into your web page and supplying the
data via a seperate plain text file.
Every visitor will see an identical graph whenever
they visit the page.
Implementation
This method involves the following 4 steps,
Step
2 - Set up the Configuration data.
The applet will read all the configuration parameters
from a specified file. To use this option add
the following PARAM tag to your html code between
the <applet> and </applet> tags,
As
you will see from the example file each property
is specified on a name, value basis. Note
that comments may be added to this file by
placing "<!--" at the beginning
of a line.
Adjust the property values to specify the
characteristics of the line graph and then
place this file in the same directory as your
web page.
Step
3 - Set up the 2D/3D Line Graph data
The applet will read all the data from a specified
file. To use this option add the following PARAM
tag to your html code between the <applet>
and </applet> tags,
As you will see from the example file each
piece of data is specified on a name, value
basis. The first element of each line represents
the data name (specifying the series and data
order) and then the value. (Also note that
comments may be added to this file by placing
"<!--" at the beginning of a
line.).
Simply create a similar file, adding your
data in the values. For a full explanation
of this file please see the "Retrieving
Data from Files" under the "Data
and Configuration" section ( or click
here).
Step
4 - Upload the jar file to your web server.
The final step is to simply to place the Linegraph.jar
file in the same directory as your web page.
At only 20kb this jar file contains all the
applet code for producing the graph in your
page and as such is very fast to load and run.