Script Interface (via PHP, ASP, JSP or Servlet)
This method also provides the ability to add Real-Time
Dynamic Database Graphing to your web pages. This method
is extremely flexible and allows the construction of graphs
from virtually any database / database system running on
virtually any platform.
Method Outline
Here the graph applet is incorporated into a a static HTML
page but rather than supplying the data with PARAM tags
or flat file, the graph is set to acquire data from a server
side script. The server side script accesses the databases
and returns the graph data to the applet.
At page view time the script reads data from the database
and formats the data for input into the either the graphing
Applet or Servlet - hence producing a Real-Time Dynamic
Graph with data direct from a database within the web page.
Note: This method may be applied to both Applet
and Servlet forms of the graphing software.
Implementation
To implement this method simply perform the following 3
steps,
- Construct
the Data Script
- Construct
the HTML Page
-
Upload the Script, HTML page and jar file to your web
server
Step
1 - Construct the Data Script
The dynamic script can be constructed in any language of
your choice. Most Web Servers these days come set up with
a dynamic scripting language which is configured to access
your database system. For convenience we recommend using
the language already configured on your web server.
(if
you haven't used or are unsure about what's already available
on your web server then you should in the first instance
speak to your Web Server Administrator or ISP Hosting
company ).
The following are the most common Scripting languages and
cover over 90% of web servers in use today,
In the TemplateScripts directory you will find template
scripts which are designed to provide a base from which
to tailor a script for your implementation. You are free
to copy, modify and utilize these scripts in any manor you
wish.
Simply pick, from the links below, the template script
for your environment, modify where indicated and upload
to your web server.
PHP template
script - ./TemplateScripts/PHP/BarData.php
ASP template
script - ./TemplateScripts/ASP/BarData.asp
JSP template
script - ./TemplateScripts/JSP/BarData.jsp
Java
Servlet - ./TemplateScripts/Servlet/BarData.java
When modifying the applet configuration parameters within
these scripts please also refer to the following section
in the Documentation,
Documentation
- Bar Graph Configuration Options
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Step
2 - Construct the HTML Page
In your web page place the following code, where you
wish the graph to appear,
<applet
code="SVbarchartApplet.class" archive="SVbarchart.jar"
width="500" height="420">
</applet>
Adjusting
the "width" and "height" element of
this applet tag to specify the size (in pixels) of the desired
graph display.
Using
this option the applet will read all the configuration information
from the standard applet <PARAM> tags. Simply add
the <PARAM> tags, contained in the paramtags.txt file
(click here),
to your html between the <APPLET> and </APPLET>
tag, adjusting the values to specify the characteristics
of the bar graph.
For
a full description of each property please see the following
section in the Documentation,
"Configuration
Options and Parameters".
^^
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Step
3- Upload the Script, HTML Page and jar file to your web
server.
The final step is to simply upload the HTML Page and Data
Script to your web server and place the SHbarchart.jar
file in the same directory as your web page. At only 15kb
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.
^^
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If you
experience any difficulties implementing then please do
not hesitate to contact us at,
support@jpowered.com