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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