How to show axis in 3D

Question

Niklas Kurz 2021-6-26

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/865870-how-to-show-axis-in-3d

评论： Star Strider 2021-6-29

Any time I plot in 3D I get a little confused because of aggravated orientation. The main reason is the missing default visualisation of thick axis lines (as far as I know)

That's why I tampered with it myslef, coming up with:

%some plotting
axis([0 1 0 1 0 1])
hold all
quiver3(0,0,-max(zlim),0,0,2*max(zlim),'b','LineWidth',1)
quiver3(0,-max(ylim),0,0,2*max(ylim),0,'b','LineWidth',1)
quiver3(-max(xlim),0,0,2*max(xlim),0,0,'b','LineWidth',1)
text(0,0,max(zlim),'Z','Color','b')
text(0,max(ylim),0,'Y','Color','b')
text(max(xlim),0,0,'X','Color','b')
axis equal

Now regarding my question: Is there an easier way to implement this visualization or optimize my attempt? Even putting it in a script so I can type 'axlines on' or somewhat to handle it easily. Or it's all redundant because it already exist somehow?

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Answer 1

Star Strider 2021-6-26

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/865870-how-to-show-axis-in-3d#answer_734115

在 MATLAB Online 中打开

I am not certain what you are asking.

If you want to see it in ‘true’ 3D, use the view function, and to change the axes LineWidth or GridLineStyle (or both), those (and other) options are also available:

%some plotting

axis([0 1 0 1 0 1])

hold all

quiver3(0,0,-max(zlim),0,0,2*max(zlim),'b','LineWidth',1)

quiver3(0,-max(ylim),0,0,2*max(ylim),0,'b','LineWidth',1)

quiver3(-max(xlim),0,0,2*max(xlim),0,0,'b','LineWidth',1)

text(0,0,max(zlim),'Z','Color','b')

text(0,max(ylim),0,'Y','Color','b')

text(max(xlim),0,0,'X','Color','b')

axis equal

view(30,30)

set(gca, 'LineWidth',2, 'XGrid','on', 'GridLineStyle','--')

.

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Niklas Kurz 2021-6-29

Basically I was asking for an easier way to implement those arrows that I drew inconveniently with quiver. Yor gca-manipulation also is an enhancement to better orientate in 3D-plots