周二软件打卡（四）：Matlab三维绘图（2）

周二软件打卡（四）：Matlab三维绘图（2）.mp31:52来自LearningYard学苑

分享兴趣，传播快乐，增长见闻，留下美好。

亲爱的您，

这里是LearingYard学苑！

今天小编为大家带来Matlab三维绘图（2）介绍，

欢迎您的用心访问！

本期推文阅读时长大约3分钟，请您耐心阅读。

Share interests, spread happiness, increase knowledge, and leave behind beauty.

Dear you,

this is LearningYard Academy!

Today, the editor brings you introduction of Matlab three-dimensional drawing（2）,

welcome your visit carefully!

This tweet will take about 3 minutes to read . Please read it patiently.

01

三维球面图

函数[X,Y,Z] = sphere(n) 在三个大小为 (n+1)×(n+1) 的矩阵中返回 n×n 球面的坐标。可以用 surf(X,Y,Z) 或 mesh(X,Y,Z) 来绘制该球面。[X,Y,Z]为球心坐标，默认为0；通过改变球心位置，在同一空间绘制多个球面。

The function [X,Y,Z] = sphere(n) returns the coordinates of an n×n sphere in three matrices of size (n+1)×(n+1). The sphere can be drawn with surf(X,Y,Z) or mesh(X,Y,Z) . [X, Y, Z] are the coordinates of the center of the sphere, and the default value is 0; by changing the position of the center of the sphere, multiple spheres are drawn in the same space.

输入如下代码：

Enter the following code:

运行结果如下：

The results are as follows:

02

三维 格图

在Matlab中，进行三维图形绘制时，常常需要首先创建三维 格，也就是先创建平面图的坐标系。在Matlab中，常用meshgrid()函数生成 格数据，其调用格式为：[X,Y]=meshgrid(x,y)

In Matlab, when drawing 3D graphics, it is often necessary to create a 3D grid first, that is, to create the coordinate system of the plan first. In Matlab, the meshgrid() function is commonly used to generate grid data, and its calling format is: [X,Y]=meshgrid(x,y)

输入如下代码：

Enter the following code:

运行结果如下：

The results are as follows:

03

三维饼图

pie3(X) 使用 X 中的数据绘制三维饼图。X 中的每个元素表示饼图中的一个扇区。pie3(X,explode) 指定是否从饼图中心将扇区偏移一定位置。pie3(…,labels) 指定扇区的文本标签。标签数必须等于 X 中的元素数。

pie3(X) draws a three-dimensional pie chart using the data in X. Each element in X represents a slice in the pie chart. pie3(X,explode) Specifies whether to offset the slice from the center of the pie by a certain position. pie3(…,labels) Specifies the text labels for the sectors. The number of labels must equal the number of elements in X

输入如下代码：

Enter the following code:

运行结果如下：

The results are as follows:

04

三维柱体

[X,Y,Z]=cylinder(r,n)表示生成半径为r,高度为1的矩阵x,y,z,利用这三个矩阵可以绘制出半径为r,高度为1的柱体，圆柱体的圆周有指定的n个距离相同的点。

[X,Y,Z]=cylinder(r,n) means to generate a matrix x, y, z with a radius of r and a height of 1. Using these three matrices, a cylinder with a radius of r and a height of 1 can be drawn. The circumference of the cylinder has the specified n points at the same distance.

输入如下代码：

Enter the following code:

运行结果如下：

The results are as follows:

今天的分享就到这里了。
如果您对今天的文章有独特的想法,
欢迎给我们留言，
让我们相约明天。
祝您今天过得开心快乐！

That’s all for today’s sharing.
If you have a unique idea for today’s article,
please leave us a message,
and let us meet tomorrow.
I wish you a happy day !

END

点个 “在看” 呀~

参考资料：谷歌翻译，百度