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3D projection rotation [message #14236] Mon, 08 February 1999 00:00 Go to previous message
Dave Brennan is currently offline  Dave Brennan
Messages: 28
Registered: December 1998
Junior Member
Hi,

I am currently trying to produce rotating maximum intensity projections
using the voxel_proj command.
To do this I am using scale3 to produce the !P.T transform matrix, i.e.

for j=0,35 do begin
xrot = (j-9)*10

scale3,xrange=[0,sizematx*scalex],yrange=[0,sizematy*scaley] ,zrange=[0,slicemat*scalez],ax=xrot

img=voxel_proj(imagebyt,/maximum_intensity)
array(*,*,j) = img
print,j
endfor

(scalex etc are the sizes of the voxels in the corresponding directions)

This produces data which can be viewed in xinteranimate producing a
rotating MIP.

However, I wish to increase the size of the rotating MIP, to say twice
it's original size, is there a simple way of accomplishing this, with
the minimum of computing time? I am sure I am missing a simple solution.

Thanks for your help

Dave Brennan
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