[英]Drawing a curve on a 3-D surface graph
您可以使用contour
。 请注意,根据文档,您必须复制定义所需级别的值:
x = linspace(0,pi,200);
y = linspace(0,pi/2,200);
z = bsxfun(@times, sin(x), sin(y.')); %'// example data
imagesc(z); %// plot image
hold on
value = .5; %// desired level
h = contour(z,[value value],'k'); %// plot contour for that level
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