Turn a X Y Z matrix into a point cloud
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I have a matrix as follows for example where the first column is X coordinate, second column is the Y coordinate and third column is the Z coordinate. How can i turn this matrix into a point cloud with pcwrite and pcshow? It has to be in a point cloud format.
[1 8 9; 2 3 4; 9 8 6]
1 Kommentar
Adam Danz
am 12 Jan. 2021
xyz = [1 8 9; 2 3 4; 9 8 6];
ptCloud = pointCloud(xyz)
pcshow(ptCloud,'MarkerSize',1000)
Antworten (3)
Image Analyst
am 21 Feb. 2020
Try
plot3(x, y, z);
or
scatter3(x, y, z);
or, if you have a surface rather than a cloud
surf(x, y, z);
2 Kommentare
Image Analyst
am 22 Feb. 2020
I never heard of it but I guess Hiroki has and it seems there is a function to put it into that class. Then you can export it somehow, like using save() to put it into a .mat file. What program are you exporting it for? What program will use this data that you exported? Does that program know how to read in .mat files? If not, what formats does that program know about?
the cyclist
am 21 Feb. 2020
xyzPoints = [1 8 9; 2 3 4; 9 8 6];
ptCloud = pointCloud(xyzPoints);
3 Kommentare
Hiroki Okawa
am 21 Feb. 2020
Bearbeitet: Hiroki Okawa
am 21 Feb. 2020
I think that pcshow function will woks
pcshow([1 8 9; 2 3 4; 9 8 6])
By the way, you can convert xyz matrix into point cloud format by pointCloud function
ptCloud = pointCloud(xyzPoints)
in this case,
ptCloud = pointCloud([1 8 9; 2 3 4; 9 8 6])
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