3DROTATE90

Section: User Commands (1)
Updated: March 8, 1991
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NAME

3drotate90 - rotate 3D HIPS or FITS image to left or top. Output is HIPS.  

SYNOPSIS

3drotate90 [-l -L] [-c#] [-t] [-r#] [-n#]  

DESCRIPTION

3drotate90 rotates a 3D image into another 3D image for displaying and looking at different surfaces of the image.  

OPTIONS

Note, we use the term `rotate' to designate a 3D rotation about either the X or Y axis, and the term `turn' to designate a rotation about the Z (`frame number') axis.
-l
(look from left side) is used to slice vertically (creating a y-z surface, parallel to the Y axis). It first rotates to the left on a horizontal surface (rotating the image about the Y axis, so left surface becomes the front), and then turns left (rotates about the new Z axis).
-L
similar to -l but only rotates about the Y axis (horizontally rotate to left).
-t
(look from top, the default) specifies a horizontal slice (creating an x-z surface, parallel to the X axis). First rotate top to front and then turn to the right. This is the default action.
-c #
starting column for the vertical slice (-l).
-r #
starting row for the horizontal slice (-t).
-n #
New image frames. If you have a 50x50x50 image and start at column 10 for a vertical slice, and specify -n 20. Then you get a 50x50x20 output image which includes the old image from column 10 to 30.
 

NOTE

After using 3drotate90 twice in same direction, you will get the same result as using 3drotate90 once in the other direction. So 3drotate90 can only can allow you to see the front, left and top. For the other 3 directions, use 3drotate180 to go to the back first, and then use 3drotate90 to see the right (left to back) and bottom (top to back). Also, use of 3drotate90 is slower then using 3drotate to rotate 90 degrees (the extra effort is involved with keeping the upper-left corner in the upper-left of the output image). -L helps to see from a different direction.  

EXAMPLES

3drotate90 -l check_3d | xhips
this command rotate the left side of check_3d (a particular pattern) to the front, and the old Y axis now is horizontally toward left.  

SEE ALSO

3dslice(1), 3drotate(1), 3drotate180(1), 3dscale_geom(1), powertool(1)  

AUTHOR

Jin Guojun - 2/1/91


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
NOTE
EXAMPLES
SEE ALSO
AUTHOR

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