MatLab函数：pol2cart（）

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函数功能

把极坐标或圆柱坐标转换为直角坐标(笛卡儿坐标)

使用方法

[X,Y] = POL2CART(TH,R)将极坐标(角度TH和半径R)存储的数据中相应的元素转换到笛卡儿坐标X,Y。数组TH和R必须大小相同(或者二者皆可标量)，TH必须是弧度值。 matlab

[X,Y,Z] = POL2CART(TH,R,Z)将圆柱坐标(角度TH、半径R和高度Z)存储的数据中相应的元素转换到笛卡儿坐标X,Y，Z。数组TH、R和Z必须大小相同(或者其中任何一个皆可标量)，TH必须是弧度值。

matlab

输入TH，R，Z支持的类型：
float：double, single

pol2cart

Transform polar or cylindrical coordinates to Cartesian

Syntax

[X,Y] = pol2cart(THETA,RHO)[X,Y,Z] = pol2cart(THETA,RHO,Z)

Description

[X,Y] = pol2cart(THETA,RHO) transforms the polar coordinate data stored in corresponding elements of THETA and RHO to two-dimensional Cartesian, or xy, coordinates. The arrays THETA and RHO must be the same size (or either can be scalar). The values in THETA must be in radians.

[X,Y,Z] = pol2cart(THETA,RHO,Z) transforms the cylindrical coordinate data stored in corresponding elements of THETA, RHO, and Z to three-dimensional Cartesian, or xyz, coordinates. The arrays THETA , RHO, and Z must be the same size (or any can be scalar). The values in THETA must be in radians.

Algorithm

The mapping from polar and cylindrical coordinates to Cartesian coordinates is:

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