refX

The refX attribute defines the x coordinate of an element's reference point.

You can use this attribute with the following SVG elements:

marker

For <marker>, refX defines the x coordinate of the marker's reference point, which is to be placed exactly at the marker's position on the shape.

Value <length-percentage> | <number> | left | center | right
Default value 0
Animatable Yes
<length-percentage>

Lengths are interpreted as being in the coordinate system of the marker contents, after application of the viewBox and preserveAspectRatio attributes.

Percentage values are interpreted as being a percentage of the viewBox width.

<number>

Numbers are interpreted as being in the coordinate system of the marker contents, after application of the viewBox and preserveAspectRatio attributes.

left

The reference point of the marker is placed at the left edge of the shape.

center

The reference point of the marker is placed at the horizontal center of the shape.

The reference point of the marker is placed at the right edge of the shape.

symbol

For <symbol>, refX defines the x coordinate of the symbol, which is defined by the cumulative effect of the x attribute and any transformations on the <symbol> and its host