Thuộc Tính Đường Mịn

Trong đồ thị hiển thị đường (kiểu Đường hay XY), bạn có thể chọn hiển thị đường cong thay cho đường thẳng. Một số tùy chọn điều khiển các thuộc tính về đường cong như vậy.

Line properties

Line type

Chọn Chốt trục cấp ba hay Chốt trục B.

These are mathematical models that influence the display of the curves. The curves are created by joining together segments of polynomials.

Cubic Spline interpolates your data points with polynomials of degree 3. The transitions between the polynomial pieces are smooth, having the same slope and curvature.

B-Spline uses a parametric, interpolating B-spline curve. Those curves are built piecewise from polynomials.

Resolution

The Resolution determines how many line segments are calculated to draw a piece of polynomial between two data points. You can see the intermediate points if you click any data point.

A higher value leads to a smoother line.

Degree of polynomials

For B-spline lines optionally set the degree of the polynomials.