| Cross-section [message #6829] |
Tue, 27 August 1996 00:00  |
Richard Dixon
Messages: 1
Registered: August 1996
|
Junior Member |
|
|
As part of my Ph.D I am starting, I need to be able to display some
grpahics. The data set is integers in x,y and z positions, with x and y
part of a 92x92 grid, with 19 z levels. I need to display a vertical
cross section along any line in the x,y plane.
Is this easily done, and can anyone point me to any commands that I can
use - I am a new user of IDL!
Many thanks,
Rich
|
|
|
|
| Re: Cross-section [message #6966 is a reply to message #6829] |
Sat, 07 September 1996 00:00  |
pford
Messages: 33
Registered: September 1996
|
Member |
|
|
In article <Pine.SGI.3.91.960828160955.9999C-100000@swsgi01>, Richard
Dixon <rdixon@swsgi01> wrote:
> As part of my Ph.D I am starting, I need to be able to display some
> grpahics. The data set is integers in x,y and z positions, with x and y
> part of a 92x92 grid, with 19 z levels. I need to display a vertical
> cross section along any line in the x,y plane.
>
> Is this easily done, and can anyone point me to any commands that I can
> use - I am a new user of IDL!
>
> Many thanks,
>
> Rich
From one IDL-novice to another, you can take this for what it is worth.
I can think of two ways.
1) The slicer command R 1-812, looks like just what you want.
2) a klugy way:
M = intarr(92,92,19)
xy = intarr(92,92)
xz = intarr(92,19)
.
.
xz = M(*,5,*) ;xz is now the 92,19 pixel slice where y = 5
tvslc, xz
|
|
|
|
| Re: Cross-section [message #40314 is a reply to message #6829] |
Tue, 03 August 2004 05:59 |
David Fanning
Messages: 11724
Registered: August 2001
|
Senior Member |
|
|
Einar M. Einarsson writes:
> I have some meteorological data in 3d arrays and want to be able to
> plot crossections out of these arrays in any direction. That is in an
> "ideal IDL world" I would have a procedure like this:
>
> Cr_sect=get_a_cross_section_procedure(start_point, end_point)
>
> Where data is a 3d array, lets say (100,200,40) and then start_point
> would be eg. [60,70] and end_point [90,180] that is I want an array
> out of this procedure that would represent that non perpendicular line
> in the data array.
>
> Does anybody know about a IDL tool that I can use to do this?
Here is an article that illustrates how to create
an arbitrary profile between two points in a 2D
array. I think all you will have to do is extend
the concept to 3D.
http://www.dfanning.com/ip_tips/image_profile.html
Cheers,
David
P.S. Please be sure to send me the details when you get
this done so I can update my article. :-)
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
