Plotting Contour with point coordinates

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Alyssa Lau 2019-9-9

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https://ww2.mathworks.cn/matlabcentral/answers/479489-plotting-contour-with-point-coordinates

回答： darova 2019-9-9

Trying to plot elevation of head contours given point coordinates. need direction on how to appraoch problem or how to get matlab to interpolate between different points inorder to get a contour of a given head . here is the given data points.

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Answer 1

darova 2019-9-9

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在 MATLAB Online 中打开

Arc-length interpolation

L = sqrt(diff(x).^2 + diff(y).^2);
t = [0 cumsum(L)];
t1 = linspace(0,t(end),50);
x1 = spline(t,x,t1);            % interpolate X data
y1 = spline(t,y,t1);            % interpolate Y data
plot(x,y,'or')
hold on
plot(x1,y1)
hold off