r1 attribute | r1 property
Gets or sets the x-axis radius for an ellipse that is associated with a path element.
<element r1="p" ... >
p = object.r1
The x-axis radius for the path's ellipse component.
An attempt is made to modify an object that cannot be changed. For versions earlier than Internet Explorer 10, NO_MODIFICATION_ALLOWED_ERR is returned.
- Scalable Vector Graphics (SVG) 1.1, Appendix C