Question

我希望我的图表能够固定轴，并逐个绘制数据。一切都已知，但如果我使用hold off删除第一组数据，它也会忘记轴上的限制并自动为第二组数据分配新的限制。是否有可能在每次在同一图中绘制单独的数据时保持轴相同？

现在的代码是：

figure(4)
grid on 
axis([xL yL zL])
for j = 1:n     % n is amount of data sets
    for i = 1:2 % two items drawn per data set
        *plot data*
        hold on
    end

    %This part has to be done every iteration again in order to make it work now
    axis([xL yL zL])  
    xlabel = ...
    ylabel
    zlabel
    title

pause(tstop)
hold off
end

经过一番搜索，我发现的唯一相关主题是; Matlab: Plot a subplot with hold on and hold off in a loop without always calling xlabel, ylabel, xlim, etc 但是我根本不明白。它使用父图，替换孩子，nextplot等我不熟悉的，也无法找到有关的信息。

Answer 1

以下是一个可以轻松满足您需求的示例：

xlim([0 10]) %// set x-axis limits
ylim([0 10]) %// set y-axis limits
set(gca,'nextplot','replacechildren') %// prevent axis limits from changing with
%// each new plot

plot(3:8,3:8); %// note axis limits are kept as [0 10]
pause(1)
plot(5:7,5:7); %// note axis limits are kept as [0 10]

仅保留轴，而不是数据

1 个答案: