public createDiminuendoLines(startX: number, endX: number, y: number,
                                 wedgeOpeningLength: number = this.rules.WedgeOpeningLength, wedgeLineWidth: number = this.rules.WedgeLineWidth): void {
        const upperWedgeStart: PointF2D = new PointF2D(startX, y - wedgeOpeningLength / 2);
        const lowerWedgeStart: PointF2D = new PointF2D(startX, y + wedgeOpeningLength / 2);
        const wedgeEnd: PointF2D = new PointF2D(endX, y);