如何将向量列表绘制为球体? [英] How to plot a list of vectors as a sphere?

问题描述

我有一组归一化向量(其中 1538 个)形成一个球体.此外，我还有一组大小相同的数字 1538.我想绘制如下图:

I have an array of normalized vectors (1538 of them) forming a sphere. Also I has an array of numbers of the same size 1538. I want to plot something like this:

我尝试了 sphere 和 surf 函数，但找不到使用向量的方法.我想应该有办法做到这一点.

I tried the sphere and surf functions but I can't find a way to use my vectors. I figured there should be some way to do this.

非常感谢.

推荐答案

我认为你可以使用 delaunay 使用 trimesh 创建三角剖分和绘图 或 trisurf.

I think you can use delaunay to create a triangulation and plot that using trimesh or trisurf.

trimesh 和 trisurf 都接受第四个参数来指定每个顶点的颜色，添加选项 'facecolor','interp' 以在顶点之间插入每个面的颜色.

Both trimesh as trisurf accepts a fourth argument to specify the color of each vertex, add the option 'facecolor','interp' to interpolate the color of each face between vertices.

我对它进行了进一步的实验，因为它是一个球体，我认为 convhull 更适合.

edit: I experimented a bit further on it, and since it's a sphere, I think convhull is better suited.

示例:

[x,y,z]=sphere(25);
x=x(:);y=y(:);z=z(:);

tri = convhull([x y z]);
C = cos(y);
trisurf(tri,x,y,z,C,'facecolor','interp');

代替示例中的 C，您可以使用自己的值向量来指定颜色

instead of C in the example you can use your own vector of values to specify the color

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