示例1：
clc; close all; clear all;
[x,y,z] = sphere(16);
X = [x(:)*.5 x(:)*.75 x(:)];
Y = [y(:)*.5 y(:)*.75 y(:)];
Z = [z(:)*.5 z(:)*.75 z(:)];
S = repmat([1 .75 .5]*10,prod(size(x)),1);
C = repmat([1 2 3],prod(size(x)),1);
figure;
scatter3(X(:),Y(:),Z(:),S(:),C(:),'filled');
view(-60,60); box on; title('scatter3实例');
示例2：
x=[4229042.63 4230585.02 4231384.96 4231773.63 4233028.58 4233296.71 4235869.68 4236288.29];
y=[431695.4 441585.8 432745.6 436933.7 428734.4 431946.3 428705.0 432999.5];
z=[1.019 1.023 1.011 1.022 1.020 1.022 1.022 1.023];
scatter3(x,y,z)
注：x,y,z是三个等长的矢量