Equal Axis reduce the plot size

Question

Marten Amschler 2020-12-3

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https://ww2.mathworks.cn/matlabcentral/answers/675548-equal-axis-reduce-the-plot-size

回答： Bjorn Gustavsson 2020-12-3

Dear Matlab experts,

i am using GUIDE to develop a quick testing tool. I want to show a Pointcloud before and after some processings. My problem is that i want to plat the axis "equal" with a DataAspectRation [1 1 1]. But the more narrow my pointcloud gets, the smaller the plot gets.

For example, this is how big my plot could be:

This is how big the plot is when i hide the coordinatesystem:

and this is how small it is after some processing (and the pointcloud gets smaller in Y-direction):

But in the end, the user has only a very small place where he can put the mouse to "rotate" or "zomm" etc.

I'd like to have a plot with the same proportions for all axes... but stil have bigger axes. I hope you get the idea.

Thanks in advance

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Answer 1

Bjorn Gustavsson 2020-12-3

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That is a terrible problen, what happens in your case, with increasingly narrow axes is (likely) unavoidable when you get very different span in the different axis-directions - a 2-by-2-by-2 brick-wall will be reasonably cubic and we can have a nice plot, if we extend this in one direction (2000-by-2-by-2) and display it with equal scale in all direction the largest span will force the others to become very small onscreen.

No solution, only advice: use judgement and "design taste" to the best of your capability for this problem.

HTH