SVGGraph options: back_shadow_blur

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Option name:
back_shadow_blur
Default value:
0
Added in version:
3.7
Data type:
boolean or 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).

array
An array(), the number and data types of its members will depend on the option for which is it used.
boolean
A boolean TRUE or FALSE value, or any values that convert easily such as 1, "1", 0 and "".
callback
A callable function, which can be either the name of a function or an anonymous function itself.
colour
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.
fill
A colour value or one of the gradients and patterns supported by SVGGraph. See the SVGGraph colours page for details.
integer
A negative or positive whole number or 0.
number
Any number supported by PHP, for example 1 or -3.2 or 1.63e5 or M_PI.
string
Single or double quoted strings. Remember to double-quote your strings if you are inserting a line break: "Line 1\nLine 2".
Per-dataset:
no
Supported by:
ArrayGraph Bar3DGraph BarAndLineGraph BarGraph BoxAndWhiskerGraph BubbleGraph CylinderGraph DonutGraph EmptyGraph ExplodedDonutGraph ExplodedPie3DGraph ExplodedPieGraph FloatingBarGraph GroupedBar3DGraph GroupedBarGraph GroupedCylinderGraph Histogram HorizontalBarGraph HorizontalFloatingBarGraph HorizontalGroupedBarGraph HorizontalStackedBarGraph LineGraph MultiLineGraph MultiRadarGraph MultiScatterGraph MultiSteppedLineGraph Pie3DGraph PieGraph PolarArea3DGraph PolarAreaGraph PopulationPyramid RadarGraph ScatterGraph SemiDonutGraph StackedBar3DGraph StackedBarAndLineGraph StackedBarGraph StackedCylinderGraph StackedGroupedBar3DGraph StackedGroupedBarGraph StackedGroupedCylinderGraph StackedLineGraph SteppedLineGraph
Tags:
global background

Amount of blurring for the background rectangle shadow.

By default, the background shadow is not blurred - it is drawn as an offset rectangle using opacity. Enabling blur uses a filter to soften the outline of the shadow rectangle, which also increases the amount of space taken up by the shadow.

Note: filter elements are not always well supported by SVG conversion utilities / libraries. If the blurred shadow does not appear in (for example) a PDF, try viewing the same SVG output in a web browser to check if it works.

See also:
back_shadow back_shadow_blur back_round

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