Create a coordinate system (x, y, z) matrix

Question

Iliqe 2022-2-23

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1656870-create-a-coordinate-system-x-y-z-matrix

编辑： Iliqe 2022-2-24

采纳的回答： David Hill

The idea is to build a dataset of coordinates matrix with 3 coordinates along X, Y, and Z. The data which I have are:

% min and max coordinates of the dataset

Xmin = 388363.3 Xmax = 390229.2

Ymin = 3310114 Ymax = 3311144

Zmin = 2027.96 Zmax = 2889.9

% sub-block size along x, y, z:

dx = 20; dy = 20; dz = 10;

% number of layers along x, y, z:

nx = 95; ny = 53; nz = 88;

The resulting dataset starts with the min values of coordinates and goes up to max coordnates. The result is a matrix with 3 columns X, Y, and Z and the coordinates below, which correspond to the number of layers and sub-block size. And the result if you imagine will look like a big rectange with many subblocks.

I tried with a nested loop with some logic statements, but it is just produce the wrong coordinates. I think that I coded it incorrectly. If you need more info or details, please ask. Thank you for attention.

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Answer 1

David Hill 2022-2-23

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1656870-create-a-coordinate-system-x-y-z-matrix#answer_902945

编辑：David Hill 2022-2-23

在 MATLAB Online 中打开

Xmin = 388363.3;
Xmax = 390229.2;
Ymin = 3310114;
Ymax = 3311144;
Zmin = 2027.96;
Zmax = 2889.9;
[X,Y,Z]=meshgrid(linspace(Xmin,Xmax,95),linspace(Ymin,Ymax,53),linspace(Zmin,Zmax,88));
scatter3(X(:),Y(:),Z(:));