如何设置绘图中线条之间的间距?

我可以复制你的情节,我认为你的数据是这样的:

[xn,yn] = meshgrid(linspace(0,0.5,14),linspace(-15,15,100));
zn = exp(-2*yn.^2).*xn;
xn = xn(:);
yn = yn(:);
zn = zn(:);

figure
plot3(xn,yn,zn)
set(gca,'ylim',[-10,10],'zlim',[0,2]);
box off

这里你要做的是画一条线,所以第一条线的终点,连接到第二条线的起点。这会在数据行之间创建一条对角线和直线。为避免显示这些行,请在每行末尾向数据添加NaN值。你可以这样做:

index = find(diff(yn)<0);
zn(index) = nan;

figure
plot3(xn,yn,zn)
set(gca,'ylim',[-10,10],'zlim',[0,2]);
box off

在修复之后,如果您想进一步减少绘制的线的数量,您需要删除整条线,而不是像在另一个答案中那样沿着每一条线删除单独的点。这有点复杂,但可以这样完成:

len = index(1);
index = [0;index]+1;
index = index(1:3:end); % every 3rd line -- change to select how many lines to plot
elems = ((0:len) + index).'; % implicit singleton expansion
%elems = bsxfun(@plus,0:len,index).'; % use this instead if the previous line doesn't work
elems = elems(:);
xn = xn(elems);
yn = yn(elems);
zn = zn(elems);

figure
plot3(xn,yn,zn)
set(gca,'ylim',[-10,10],'zlim',[0,2]);
box off

改变你的 plot3 行到以下位置:

plot3(xn(1:5:end), yn(1:5:end), zn(1:5:end), 'linewidth', 0.1)