SVGGraph options: start_angle
- 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).
array(), the number and data types of its members will depend on the option for which is it used.
- A boolean
FALSEvalue, or any values that convert easily such as
- 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
- Any number supported by PHP, for example
- Single or double quoted strings. Remember to double-quote your strings
if you are inserting a line break:
"Line 1\nLine 2".
- Supported by:
- DonutGraph ExplodedPie3DGraph ExplodedPieGraph MultiRadarGraph Pie3DGraph PieGraph PolarArea3DGraph PolarAreaGraph RadarGraph
Initial direction of graph.
This option specifies the starting angle in degrees for graphs that draw their
data items in a circle. For both pie graphs and radar graphs, a
start_angle of 0 is to the right at 3 o'clock. This is the default for pie
For radar graphs, the default angle of 90° is straight up at 12 o'clock, 180° is at 9 o'clock and 270° is straight down at 6 o'clock.
For pie graphs, 90° is straight down at 6 o'clock, 180° is to the left
at 9 o'clock and 270° is at the top at 12 o'clock... except when you enable
reverse option, then the angles are reversed. With
90° points straight up and 270° points straight down. This reversal only
applies to the pie graph and its family of graphs, not the radar graphs. Yes,
$settings['start_angle'] = 45;
This example will start off in the top right if it is used with a radar graph.
It will be either in the bottom right or the top right for pie graphs depending
on the value of the