gsk:path-builder-rel-svg-arc-to (builder rx ry x-axis-rotation large-arc positive-sweep x y)

rx -- a number coerced to a single float with the X radius
ry -- a number coerced to a single float with the Y radius
x-axis-rotation -- a number coerced to a single float with the rotation of the ellipsis
large-arc -- whether to add the large arc
positive-sweep -- whether to sweep in the positive direction
x -- a number coerced to a single float with the X coordinate of the end point
y -- a number coerced to a single float with the Y coordinate of the end point

Implements arc-to according to the SVG spec. All coordinates are given relative to the current point. This is the relative version of the gsk:path-builder-svg-arc-to function.

Since 4.14