# SVGGraph options: start_angle

- Option name:
`start_angle`

- Default value:
`0`

- RadarGraph:
`90`

- Added in version:
- 2.5
- 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
- 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:
- DonutGraph ExplodedPie3DGraph ExplodedPieGraph MultiRadarGraph Pie3DGraph PieGraph PolarArea3DGraph PolarAreaGraph RadarGraph
- Tags:

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
graphs.

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
the `reverse`

option, then the angles are reversed. With `reverse`

enabled,
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,
really.

Example:

`$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 `reverse`

option.