phpChart Joomla! Extension Documentation
The Joomla! Extension documentation is available in this PDF phpChart Lite Joomla Installation Guide.pdf.
Programming Quick Tips
- It is strongly recommended to leave doctype declaration <!DOCTYPE HTML> right before tag <HTML> to force browser into HTML5 Standards mode.
- Each PHP chart must have an unique id associating to corresponding DIV as the draw area. It’s set as the 2nd parameter in phpChart constructor.
- Look and feel, and most of the cosmetics can also be controlled using CSS .e.g .jqplot-point-label
- Most of functions parameters are PHP array.
- Except numbers, all properites should be surrounded by double or single quotes.
- Plugins without “Renderer” suffix in their names should be loaded using add_plugins() method. e.g. add_plugins(array(“highlighter”, “cursor”));
- Different renderer has different renderer options(rendererOptions). Each plugin may add its own set of rendererOptions attributes.
- When loading renderer, use plugin:: prefix to indicate a plugin used.
- Custom js should be added before ending <body> tag between <script> tags; or can be added through phpChart add_custom_js() method(less convenient).
- All js files should be named in lower case so they works on both *nix and Windows system
- The default label renderer creates labels in DIV tags, which allows full CSS control over every label.
- Use CanvasTextRenderers to replace the default label renderer to draw labels onto canvas elements to support advanced featrues such as rotated text. However, it loses CSS support.
- Tick options(tickOptions) are only used by Axes object. A tick represents a data point.
- Some renderer are designed to represent 3D dimensional data such as Bubble Chart.
- for Date Axes render plugin, it’s recommended to specify both date and time.
- Cursor plugin also enables plot zooming functionality
- Built-in data renderer(dataRenderer) allows data from external JSON source such as retrieving from a external URL through AJAX.
- Some plugins can trigger events using bind_js() function. e.g. http://www.jqplot.com/docs/files/plugins/jqplot-donutRenderer-js.html
- jqplotDataMouseOver – triggered when user mouseing over a slice.
- jqplotDataHighlight – triggered the first time user mouses over a slice, if highlighting is enabled.
- jqplotDataUnhighlight – triggered when a user moves the mouse out of a highlighted slice.
- jqplotDataClick – triggered when the user clicks on a slice.
- jqplotDataRightClick – tiggered when the user right clicks on a slice if the “captureRightClick” option is set to true on the plot.
- canvasTextRenderer is the only renderer that has no renderer options but ends with ‘Renderer’ suffix