Text follows a Circular Path(arc)

Create a circular arc path and places a textPath. Text can be arranged: top, bottom, left and right, plus inside/outside of the circle.
Text around a Circular Path(arc)
This is text following a circle
Location in out startOffset flag 1 flag 2
Top
-.5em

1em
25% 0 1
Bottom
-.5em

1em
25% 1 0
Right
1em

-.5em
50% 0 1
*Left
1em

-.5em
50% 0 1
* Requires a sign change of arc: r,2r
SVG Source:
Javascript:
OK in:IE11/CH32/FF23