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今天小编为大家带来Matlab三维绘图(2)介绍,
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Dear you,
this is LearningYard Academy!
Today, the editor brings you introduction of Matlab three-dimensional drawing(2),
welcome your visit carefully!
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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
三维网格图
在Matlab中,进行三维图形绘制时,常常需要首先创建三维网格,也就是先创建平面图的坐标系。在Matlab中,常用meshgrid()函数生成网格数据,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:
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参考资料:谷歌翻译,百度
标签: #matlab画二维平面图 #matlab二维数据画平面图