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    SVGAngle

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    SVG angle interface

    The SVGAngle interface correspond to the <angle> basic data type.

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

    Interface overview

    Also implement None
    Methods
    • void newValueSpecifiedUnits(in unsigned short unitType, in float valueInSpecifiedUnits)
    • void convertToSpecifiedUnits(in unsigned short unitType)
    Properties
    • readonly unsigned short unitType
    • float value
    • float valueInSpecifiedUnits
    • DOMString valueAsString
    Constants
    • SVG_ANGLETYPE_UNKNOWN = 0
    • SVG_ANGLETYPE_UNSPECIFIED = 1
    • SVG_ANGLETYPE_DEG = 2
    • SVG_ANGLETYPE_RAD = 3
    • SVG_ANGLETYPE_GRAD = 4
    Normative document SVG 1.1 (2nd Edition)

    Constants

    Name Value Description
    SVG_ANGLETYPE_UNKNOWN 0 The unit type is not one of predefined unit types. It is invalid to attempt to define a new value of this type or to attempt to switch an existing value to this type.
    SVG_ANGLETYPE_UNSPECIFIED 1 No unit type was provided (i.e., a unitless value was specified). For angles, a unitless value is treated the same as if degrees were specified.
    SVG_ANGLETYPE_DEG 2 The unit type was explicitly set to degrees.
    SVG_ANGLETYPE_RAD 3 The unit type is radians.
    SVG_ANGLETYPE_GRAD 4 The unit type is gradians.

    Properties

    Name Type Description
    unitType unsigned short The type of the value as specified by one of the SVG_ANGLETYPE_* constants defined on this interface.
    value float

    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 float

    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 DOMString

    The value as a string 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

    Name & Arguments Return Description
    newValueSpecifiedUnits(in unsigned short unitType, in float valueInSpecifiedUnits) void

    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(in unsigned short unitType) void 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.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
    Basic support ? ? ? ? ?
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support ? ? ? ? ?

     

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    Contributors to this page: Sheppy, kscarfone, fscholz, Jeremie
    最終更新者: fscholz,