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两条曲线如何让边界连接的更光滑?

조회 수: 10 (최근 30일)
Yuanhang Wu
Yuanhang Wu 2017년 8월 14일
답변: Walter Roberson 2017년 8월 17일
x=[0.1 4.76 6.65 9.51 12.17 15.23 17.35 19.21 22.15 23.46 27.11 28.81 29.87 30.52 30.99 32.01 33.85 34.91 37.5]
y=[6.54 5.19 4.53 4.99 2.21 6.81 6.10 8.89 4.88 3.72 3.21 2.78 3.58 2.28 2.11 2.47 2.26 1.55 6]
x1=[0.1 1.7 4.80 5.98 8.83 12.18 15.21 17.92 19.50 22.23 24.56 27.31 29.11 29.87 30.87 31.51 32.89 33.78 35.71 37.5]
y1=[6.54 19.89 24.52 34.82 40.54 37.67 41.38 30.00 19.68 14.56 18.86 17.98 21.62 17.98 14.86 12.86 10.96 8.68 9.54 6]
xx=[0.1:0.0001:37.5]
xy=[0.1 :0.0001:37.5]
yi=interp1(x,y,xx,'spline');
yy=interp1(x1,y1,xy,'spline');
plot(xx,yi,'r')
hold on
plot(xy,yy)
  댓글 수: 1
Walter Roberson
Walter Roberson 2017년 8월 14일
Approximate translation:
How does the two curves make the border more smooth?

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답변 (2개)

Faiz Gouri
Faiz Gouri 2017년 8월 17일
I understand that you would like to make curves more smooth. In order to do so, use smooth function or refer this article.
Hope this helps!

Walter Roberson
Walter Roberson 2017년 8월 17일
My thought was that to get the smoothness, it would be necessary to adjust the spline end conditions to match between the two curves, something like
temp_x = [x1(3), x1(2), x1(1), x, x1(end-2), x1(end-1), x1(end)];
temp_y = [y1(3), y1(2), y1(1), y, y1(end-2), y1(end-1), y1(end)];
temp_x1 = [x(3), x(2), x(1), x1, x(end-2), x(end-1), x(end)];
temp_y1 = [y(3), y(2), y(1), y1, y(end-2), y(end-1), y(end)];
yi = interp1(temp_x, temp_y, xx, 'spline');
yy = interp1(temp_x1, temp_y1, xy, 'spline');

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