public void set(float left, float top, float right, float bottom) {
        this.left = left;
        this.top = top;
        this.right = right;
        this.bottom = bottom;
    }
Set the viewport's coordinates to the specified values. Note: no range checking is performed, so it is up to the
caller to ensure that {@code left <= right and bottom <= top}.

@param left   The X coordinate of the left side of the viewport
@param top    The Y coordinate of the top of the viewport
@param right  The X coordinate of the right side of the viewport
@param bottom The Y coordinate of the bottom of the viewport
hellocharts-library/src/lecho/lib/hellocharts/model/Viewport.java