markerUnits - SVG: Scalable Vector Graphics 编辑

The markerUnits attribute defines the coordinate system for the markerWidth and markerUnits attributes and the contents of the <marker>.

Usage notes

Value	`userSpaceOnUse` \| `strokeWidth`
Default value	`strokeWidth`
Animatable	Yes

userSpaceOnUse: This value specifies that the markerWidth and markerUnits attributes and the contents of the <marker> element represent values in the current user coordinate system in place for the graphic object referencing the marker (i.e., the user coordinate system for the element referencing the <marker> element via a marker, marker-start, marker-mid, or marker-end property).
strokeWidth: This value specifies that the markerWidth and markerUnits attributes and the contents of the <marker> element represent values in a coordinate system which has a single unit equal the size in user units of the current stroke width (see the stroke-width attribute) in place for the graphic object referencing the marker.

Specification	Status	Comment
Scalable Vector Graphics (SVG) 2 The definition of 'markerUnits' in that specification.	Candidate Recommendation	No significant change
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'markerUnits' in that specification.	Recommendation	Initial definition

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