SVGGraph options: bar_side_overlay_opacity

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Option name:
Default value:
Added in version:
Data type:
number [?]

The datatypes used in this documentation for specifying SVGGraph options are described below. All options can be a literal value of the data type described, a variable containing the data type, or an expression that will produce the data type when evaluated (and they must always be valid PHP expressions).

An array, the number and data types of its members will depend on the option for which is it used.
A boolean TRUE or FALSE value, or any values that convert easily such as 1, "1", 0 and "".
A callable function, which can be either the name of a function or an anonymous function itself.
Any of the colour values supported by SVG inside a single or double quoted string. These include three and six digit hex codes, RGB and RGBA colours, and colour names. SVG uses "none" for no colour, which generally leaves things transparent.
A colour value or one of the gradients and patterns supported by SVGGraph. See the SVGGraph colours page for details.
A negative or positive whole number or 0.
An integer or float value, or a string containing a number followed by one of these CSS units: px, in, cm, mm, pt, pc.
Any number supported by PHP, for example 1 or -3.2 or 1.63e5 or M_PI.
Single or double quoted strings. Remember to double-quote your strings if you are inserting a line break:
"Line 1\nLine 2".
Supported by:
Bar3DGraph GroupedBar3DGraph HorizontalBar3DGraph HorizontalGroupedBar3DGraph HorizontalStackedBar3DGraph StackedBar3DGraph StackedGroupedBar3DGraph
3D bar

Opacity of bar side overlay.

This option sets the opacity of the overlay that is drawn over the top of the 3D bar side area to change its appearance. The default value 0.5 means that the overlay is 50% opaque, and the default black colour means it darkens the side of the bar while allowing the colour, pattern or gradient underneath to show through.

A value of 0 disables the overlay completely.

See also:
bar_side_overlay_colour bar_top_overlay_opacity bar_front_overlay_opacity

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