'宣言 Protected Overrides Function GetLabelSpacingForInterval( _ ByVal interval As Double, _ ByVal windowRect As Rect, _ ByVal viewportRect As Rect, _ ByVal effectiveViewportRect As Rect _ ) As Double
protected override double GetLabelSpacingForInterval( double interval, Rect windowRect, Rect viewportRect, Rect effectiveViewportRect )