rel_html_arc_to
Description:
Implements arc-to according to the HTML Canvas spec.
All coordinates are given relative to the current point.
This is the relative version of [method@Gsk.PathBuilder.html_arc_to].
Parameters:
| this |
a path builder |
| x1 |
x coordinate of first control point |
| y1 |
y coordinate of first control point |
| x2 |
x coordinate of second control point |
| y2 |
y coordinate of second control point |
| radius |
radius of the circle |