[交流] 简单的MATLAB几何建模问题已有2人参与

function spheres

n = 100;
r = rand( 1, n ) / 10;

for i = 1 : n
    color_value = rand( 1, 3 ); % 颜色
    position = rand( 1, 3 );  % 球心坐标
     [ x, y, z ] = unitsphere;
     
     x =  r( i ) * x + position( 1 );
     y =  r( i ) * y + position( 2 );
     z =  r( i ) * z + position( 3 );
     
     h = surf( x, y, z);
     set( h, 'EdgeColor', 'none', ...
         'FaceColor', color_value  );
     hold on
end
axis equal

V = 4 * pi * r .^3 / 3;
VSUM = sum( V )

function [ x, y, z ] = unitsphere

r = 1; % 单位圆
n = 20;

theta = ( -n : 2 : n ) / n * pi;
phi = ( -n : 2 : n )' / n * pi / 2;

cosphi = cos( phi );
cosphi( 1 ) = 0;
cosphi( n + 1 ) = 0;
sintheta = sin( theta );
sintheta( 1 ) = 0;
sintheta( n + 1 ) = 0;

x = r * cosphi * cos( theta );
y = r * cosphi * sintheta;
z = r * sin( phi ) * ones( 1, n + 1 );

3楼: Originally posted by xiegangmai at 2016-01-27 16:41:01
简单写了下代码，楼主参考参考。

function spheres

n = 100;
r = rand( 1, n ) / 10;

for i = 1 : n
    color_value = rand( 1, 3 ); % 颜色
    position = rand( 1, 3 );  % 球心坐标
      = unit ...