help > Importing custom dataset from x,y,z,intensity
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Apr 13, 2011  02:04 PM | Florian LB
Importing custom dataset from x,y,z,intensity
Dear all,

I am trying to import a custom dataset from data which consists of x,y,z,intensity fields (on a cubic grid, with equal spacing).
I checked out the .apo file specification from the Matlab routines but this is not what I am looking for (I also searched the forums but couldn't find what I needed, sorry).

I assume there must be a way to write a .csv file or something similar and then import it.

Could anyone give me some pointers?

thanks in advance
Florian
Apr 13, 2011  06:04 PM | Hanchuan Peng
RE: Importing custom dataset from x,y,z,intensity
If you only care about the 3D locations, you can use but with some small change of the CONTENT of the files

(1) marker file: the easiest way, but you cannot directly drag and drop it into a 3D viewer, if you do NOT already have an image open there.
(2) point cloud file (.apo). You need only use the z,x,y columns, optionally the name column (if you want to display them somehow), and the size column.
(3) swc file : you can set each node has no parent (thus the last column is always -1 for every node).

best,

-hanchuan


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Originally posted by Florian LB:
Dear all,

I am trying to import a custom dataset from data which consists of x,y,z,intensity fields (on a cubic grid, with equal spacing).
I checked out the .apo file specification from the Matlab routines but this is not what I am looking for (I also searched the forums but couldn't find what I needed, sorry).

I assume there must be a way to write a .csv file or something similar and then import it.

Could anyone give me some pointers?

thanks in advance
Florian