PlotJax provides more than just a static image, however. PlotJax includes a pop-up balloon tooltip interface to provide drill-downs of chart data, as well as gesture driven zoom and filter capability. And since PlotJax chart definitions are based on the standard JSON data interchange format, charts can be dynamically updated from a server in near realtime using AJAX requests.
How do I use PlotJax ?
The Easy Way: Using the PlotJax Wizard
PlotJax Wizard (sorry, still under construction...)
guides you through a step-by-step process to define the look and feel of
your chart, including
The PlotJax Wizard will progressively display an updated version of your
chart layout as you define the look and feel elements. When you're done
defining your chart, PlotJax will display the text of the JSON definition,
which you can simply copy and paste into your own webpages.
The Easier Way: Using PlotJax Templates
A number of templates for common chart types are available. You simply
select a template, insert the type of data to be plotted, and the data values,
and you've got your chart!
For Power Users
If you have special applications, or intend to load and update the chart
via AJAX requests, you can program your own JSON definitions using the
PlotJax JSON Interface Definition,
passing the JSON text to either the PlotJax constructor, or the
loadData method. This method gives you fine control
over the content of your JSON, and hence, the look and feel of your chart.
Via Perl: Direct Database Queries
(Currently under construction...)
A soon to be released update to
DBIx::Chart provides support for rendering directly into PlotJax JSON, rather
than static images. DBIx::Chart is a subclass of Perl's standard database interface
library DBI that adds an SQL language
extension for generating charts from database queries. Using DBIx::Chart, you can
directly query a database with a compatible Perl DBI driver, and PlotJax JSON will
be returned as the query result, which you can then send to a browser for
Coming Soon: Direct Database Queries for Everyone
A database proxy server known as
is being updated to support a DBIx::Chart plugin, along with MySQL, PostgreSQL, and other
server protocol interfaces, so that users of ODBC, JDBC, or other
language libraries for database access can retrieve PlotJax charts with the
same direct-to-database ease as Perl.
Where can I get more fonts ?
Text drawn in a PlotJax chart uses the
tool. You can create your own font definitions to be used with your
chart, and insert them into your chart JSON, or load them from your
own font server.
What About Internet Explorer ?
IE does not implement the <canvas> element; however,
PlotJax supports the excanvas VML-to-canvas adapter
library for Microsoft® Internet Explorer (versions 6 and 7).
What do PlotJax charts look like ?
See for yourself! The PlotJax sample page
provides several charts rendered via PlotJax.
What are PlotJax's license terms ?
PlotJax Copyright© 2008 Presicient Corp., USA. All rights reserved.
PlotJax is dual licensed:
The compressed version of PlotJax is freely available to use, copy, and redistribute under the terms of the Academic Free License 3.0.
PlotJax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Academic Free License 3.0 for more details.
Presicient will also offer a commercial license for PlotJax, which will include full cleartext sources, as well as priority support and regular updates.
PRESICIENT CORPORATION RESERVES THE RIGHT TO ALTER THESE LICENSE TERMS
FOR ANY SUBSEQUENT RELEASE OF THE SOFTWARE.
Who can I contact for help and more info ?
Send help requests, suggestions, and bug reports to
firstname.lastname@example.org. If there
is sufficient interest, I may startup a mailling list or wiki.
Presicient provides consulting services, and annual support agreements, to help you exploit all that PlotJax has to offer. Contact email@example.com for program offerings and pricing.