Web/API/SVGAngle

The SVGAngle interface is used to represent a value that can be an <angle> or <number> value. An SVGAngle reflected through the animVal attribute is always read only.

An SVGAngle object can be designated as read only, which means that attempts to modify the object will result in an exception being thrown.

An SVGAngle object can be associated with a particular element. The associated element is used to determine which element's content attribute to update if the object reflects an attribute. Unless otherwise described, an SVGAngle object is not associated with any element.

Every SVGAngle object operates in one of two modes:

1. Reflect the base value of a reflected animatable attribute (being exposed through the baseVal member of an SVGAnimatedAngle),
2. Be detached, which is the case for SVGAngle objects created with SVGSVGElement.createSVGAngle().

Constants

SVG_ANGLETYPE_UNKNOWN

Some unknown type of value.

SVG_ANGLETYPE_UNSPECIFIED

A unitless <number> interpreted as a value in degrees.

SVG_ANGLETYPE_DEG

An <angle> with a deg unit.

SVG_ANGLETYPE_RAD

An <angle> with a rad unit.

SVG_ANGLETYPE_GRAD

An <angle> with a grad unit.

Properties

unitType

The type of the value as specified by one of the SVG_ANGLETYPE_* constants defined on this interface.

value

The value as a floating point value, in user units. Setting this attribute will cause valueInSpecifiedUnits and valueAsString to be updated automatically to reflect this setting.

Exceptions on setting: A DOMException with code NO_MODIFICATION_ALLOWED_ERR is raised when the length corresponds to a read-only attribute, or when the object itself is read-only.

valueInSpecifiedUnits

The value as a floating point value, in the units expressed by unitType. Setting this attribute will cause value and valueAsString to be updated automatically to reflect this setting.

Exceptions on setting: A DOMException with code NO_MODIFICATION_ALLOWED_ERR is raised when the length corresponds to a read-only attribute, or when the object itself is read-only.

valueAsString

The value as a DOMString value, in the units expressed by unitType. Setting this attribute will cause value, valueInSpecifiedUnits, and unitType to be updated automatically to reflect this setting.

Exceptions on setting: 

A DOMException with code SYNTAX_ERR is raised if the assigned string cannot be parsed as a valid <angle>.

A DOMException with code NO_MODIFICATION_ALLOWED_ERR is raised when the length corresponds to a read-only attribute, or when the object itself is read-only.

Methods

newValueSpecifiedUnits

Reset the value as a number with an associated unitType, thereby replacing the values for all of the attributes on the object.

Exceptions:

A DOMException with code NOT_SUPPORTED_ERR is raised if unitType is SVG_ANGLETYPE_UNKNOWN or not a valid unit type constant (one of the other SVG_ANGLETYPE_* constants defined on this interface).

A DOMException with code NO_MODIFICATION_ALLOWED_ERR is raised when the length corresponds to a read only attribute or when the object itself is read only.

convertToSpecifiedUnits

Preserve the same underlying stored value, but reset the stored unit identifier to the given unitType. Object attributes unitType, valueInSpecifiedUnits, and valueAsString might be modified as a result of this method.

Specifications

Specification	Status	Comment
Scalable Vector Graphics (SVG) 2The definition of 'SVGElement' in that specification.	Candidate Recommendation	Adds the dataset property.
Scalable Vector Graphics (SVG) 1.1 (Second Edition)The definition of 'SVGElement' in that specification.	Recommendation	Initial definition

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
SVGAngle	Chrome Full support Yes	Edge Full support ≤18	Firefox Full support Yes	IE ?	Opera Full support Yes	Safari Full support Yes	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android Full support Yes	Opera Android Full support Yes	Safari iOS Full support Yes	Samsung Internet Android Full support Yes

Legend

Full support  

Full support

Compatibility unknown  

Compatibility unknown

SVGAngle by Mozilla Contributors is licensed under CC-BY-SA 2.5.