Scatter3, Meshgrid coordinate misalignment. How to fix this?
1 次查看(过去 30 天)
显示 更早的评论
Hello,
I have a 3d matrix I want to graph on scatter3. But there's something that's concerning me about the way Matlab parses the meshgrid outputs:
>> a = rand(2, 3, 4)
a(:,:,1) =
0.5557 0.2120 0.9138
0.1844 0.0773 0.7067
a(:,:,2) =
0.5578 0.1662 0.9879
0.3134 0.6225 0.1704
a(:,:,3) =
0.2578 0.0740 0.4024
0.3968 0.6841 0.9828
a(:,:,4) =
0.4022 0.1544 0.1611
0.6207 0.3813 0.7581
>> [x, y, z] = meshgrid(1:2, 1:3, 1:4);
>> [x(:) y(:) z(:) a(:)]
ans =
1.0000 1.0000 1.0000 0.5557
1.0000 2.0000 1.0000 0.1844
1.0000 3.0000 1.0000 0.2120
2.0000 1.0000 1.0000 0.0773
2.0000 2.0000 1.0000 0.9138
2.0000 3.0000 1.0000 0.7067
1.0000 1.0000 2.0000 0.5578
1.0000 2.0000 2.0000 0.3134
1.0000 3.0000 2.0000 0.1662
2.0000 1.0000 2.0000 0.6225
2.0000 2.0000 2.0000 0.9879
2.0000 3.0000 2.0000 0.1704
1.0000 1.0000 3.0000 0.2578
1.0000 2.0000 3.0000 0.3968
1.0000 3.0000 3.0000 0.0740
2.0000 1.0000 3.0000 0.6841
2.0000 2.0000 3.0000 0.4024
2.0000 3.0000 3.0000 0.9828
1.0000 1.0000 4.0000 0.4022
1.0000 2.0000 4.0000 0.6207
1.0000 3.0000 4.0000 0.1544
2.0000 1.0000 4.0000 0.3813
2.0000 2.0000 4.0000 0.1611
2.0000 3.0000 4.0000 0.7581
Say x is 1:2, y is 1:3, z is 1:4, but if you look at the final output, the second value 0.1844 has coordinates (1, 2, 1) when it actually has (2, 1, 1), as you can see from the first part. It looks like the alignment is wrong in this approach.
How would I fix this?
Thank you
0 个评论
采纳的回答
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Surface and Mesh Plots 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!