relativeConicTo abstract method
Adds a bezier segment that curves from the current point to the point at the offset (x2,y2) from the current point, using the control point at the offset (x1,y1) from the current point and the weight w. If the weight is greater than 1, then the curve is a hyperbola; if the weight equals 1, it's a parabola; and if it is less than 1, it is an ellipse.
Implementation
void relativeConicTo(double x1, double y1, double x2, double y2, double w);