How to generate a point cloud in 3D?
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Hello dear community,
I would like to know if there is a fast way to create a cloud in 3D which consists of points. I would like to get something like this:
The points should be written into a simple matrix. Each row should represent one point. Thank you for your help!
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Mike Garrity
2015 年 11 月 16 日
編集済み: Mike Garrity
2015 年 11 月 16 日
This might be a good starting point:
[x,y,z] = ndgrid(1:5:100,1:5:100,1:5:100);
scatter3(x(:),y(:),z(:),'.')
The ndgrid function will return multiple arrays of the same shape with one of its inputs replicated along one dimension of each of its outputs.
The syntax x(:) says to convert that 3D array into a vector.
The scatter3 function takes 3 vectors and plots a marker at the location defined by each row of the three.
The '.' argument to scatter3 tells it to draw a dot, rather than one of the bigger and more complex markers.
6 件のコメント
Halil Bölük
2020 年 4 月 30 日
Hello RAMYA. I need stl to point cloud transformation. Did you find anything about this ?
elnaz gh
2020 年 9 月 14 日
Hello you can use meshlabjs(it is online) and upload yor .stl file and then search "sampling" then select poission disk sampling or monto carlo sampling,
その他の回答 (1 件)
faten emad
2018 年 9 月 17 日
Hi Mike, your code is very good. I want to generate a point cloud of moving scan camera can you help me?
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