如何在MATLAB中的scatter3图中绘制两点之间的直线?

时间:2017-12-06 18:12:19

标签: matlab plot line scatter scatter3d

我使用以下代码生成scatter3图:

X = [1,2,3,1,2,3,1,2,3,1,2,3,1,2,3];
Y = [0,0,0,20,20,20,40,40,40,60,60,60,80,80,80,];
Z1 = [10,-48.7863,-73.3457, -68.3091, -142.0666,...
      12, -35.7863, -23.347, -29.3091,-141.0660,...
      13,3.2137,-10.3457,-33.3091,-128.0666]
Z2 = [2,8.2137,-2.3457, 46.6909, 12.9334,...
      10,11.2137, 19.6543,35.6909, 45.9334,...
       -1,16.2137,37.6543,50.6909,34.9334]

figure;scatter3(X,Y,Z1,'filled'); hold on;
scatter3(X,Y,Z2,'filled')

结果如下图所示:

enter image description here

我想要的是每个蓝点和红点之间的垂直线。

示例输出可能如下所示: enter image description here

我尝试使用line函数,但我不确定如何构建向量。

我试过了:

line(X,Y,Z1) % will only connect the blue dots
line(X,Y,Z2) % will only connect the red dots


line(X,Y,Z1:Z2) % will give an error that the vectors must be the same length

1 个答案:

答案 0 :(得分:2)

您必须vertically concatenate Z1Z2数据,以便每列定义一个line来绘制。您还必须以相同的方式复制XY

line([X; X], [Y; Y], [Z1; Z2], 'Color', 'r');

结果(添加到散点图中):

enter image description here