[MINC-users] troubles with mincmakescalar

[Robert VINCENT]

Daniel,

Thanks for the report.  I believe that you've found a limitation (bug) of
the mincmakescalar program.  What you attempted appears to work only if
the vector_dimension is the fastest-varying dimension in the file.

Jason's suggestion appears to work properly.

Alternatively, you can reorder the dimensions once with mincreshape:

mincreshape -dimorder zspace,yspace,xspace,vector_dimension in.mnc out.mnc

After doing this, mincmakescalar should work as you expect.

I'll look into fixing mincmakescalar for the next release...

	-bert

On Fri, 12 Nov 2004, Daniel Schwarz wrote:

> Dear minc users,
>
> My mincmakescalar does not seem to work properly. I wanted to use it to
> split vector image (result of mritotal -nonlinear) into 3 scalar images
> (step by step). Result of mincmakescalar is again a vector image...:-(
>
> [schwarzd@localhost Experiment]$ mincinfo A2.nonlinear_grid_0.mnc
> file: A2.nonlinear_grid_0.mnc
> image: signed__ short -32766 to 32766
> image dimensions: vector_dimension zspace yspace xspace
>     dimension name         length         step        start
>     --------------         ------         ----        -----
>     vector_dimension            3      unknown      unknown
>     zspace                     18            4           -1
>     yspace                     20            4            5
>     xspace                     20            4            3
> [schwarzd@localhost Experiment]$
> [schwarzd@localhost Experiment]$ mincmakescalar -linear 1,0,0
> A2.nonlinear_grid_0.mnc test.mnc
> Processing:......................................................Done
> [schwarzd@localhost Experiment]$ mincinfo test.mnc
> file: test.mnc
> image: signed__ short -32766 to 32766
> image dimensions: vector_dimension zspace yspace xspace
>     dimension name         length         step        start
>     --------------         ------         ----        -----
>     vector_dimension            3      unknown      unknown
>     zspace                     18            4           -1
>     yspace                     20            4            5
>     xspace                     20            4            3
>
> ....I have minc-1.3...
> Thanks in advance for any reply (somebody might know how to split the
> vector image into three components in another way)....
>
> Daniel Schwarz
>
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