在Matlab中将法线向量绘制到平面上 [英] Plotting a normal vector to a plane in matlab

问题描述

我正在尝试绘制垂直于平面的矢量，但是它没有正常显示.这是代码

I'm trying to plot a vector normal to a plane but it doesn't show up as normal.This is the code

[X,Y]=meshgrid(-10:1:10); R=5+2*(X-4)+4*(Y-2); mesh(X,Y,R) hold quiver3(4,2,5,2,4,-1) hold off

[X,Y]=meshgrid(-10:1:10); R=5+2*(X-4)+4*(Y-2); mesh(X,Y,R) hold quiver3(4,2,5,2,4,-1) hold off

我在做什么错了?

推荐答案

向量垂直于平面.问题很可能是自动轴缩放.

The vector is normal to the plane. The problem is most likely the automatic axis scaling.

使用axis equal确保沿每个轴的数据单元长度相同.

Use axis equal to ensure that data units have the same length along each axis.

[X,Y]=meshgrid(-10:1:10);
R=5+2*(X-4)+4*(Y-2);
mesh(X,Y,R)
hold
quiver3(4,2,5,2,4,-1)
hold off
axis equal

使用适当的轴缩放比例，您的法向矢量将显示为垂直于平面.

With proper axis scaling, your normal vector will appear normal to the plane.

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