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| Re: Distance between contour lines [message #60645 is a reply to message #60524] |
Thu, 29 May 2008 00:17  |
Wox
Messages: 184
Registered: August 2006
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Senior Member |
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On Wed, 28 May 2008 16:29:51 -0500, "Kenneth P. Bowman"
<k-bowman@null.edu> wrote:
> You can get the coordinates of the contour lines by using the PATH_INFO
> and PATH_XY keywords to CONTOUR. There are many ways I can think of
> to define the "horizontal distance", so from there on out, you are on
> your own.
>
> Ken Bowman
Ok, thanks. I'll play around with that.
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| Re: Distance between contour lines [message #60650 is a reply to message #60524] |
Wed, 28 May 2008 14:29 |
Kenneth P. Bowman
Messages: 585
Registered: May 2000
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Senior Member |
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In article <a14r349m81qusuq7r1v9pcdckohiem9u8l@4ax.com>,
Wox <nomail@hotmail.com> wrote:
> On Tue, 27 May 2008 05:53:13 -0600, David Fanning <news@dfanning.com>
> wrote:
>
>> Wox writes:
>>
>>> How can I retrieve the vertical distance between two adjacent contour
>>> lines?
>>
>> You do this by setting the vertical distance yourself, in
>> the first place. Don't let IDL do it for you. :-)
>>
>> Cheers,
>>
>> David
>
>
> Sorry, I meant horizontal distance :-)
You can get the coordinates of the contour lines by using the PATH_INFO
and PATH_XY keywords to CONTOUR. There are many ways I can think of
to define the "horizontal distance", so from there on out, you are on
your own.
Ken Bowman
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| Re: Distance between contour lines [message #60657 is a reply to message #60524] |
Wed, 28 May 2008 11:19 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Wox writes:
> Sorry, I meant horizontal distance :-)
I think you have the wrong tool for the job.
Don't you need surveying equipment for this sort of work?
Of course, this will depend on where you are standing
and what direction you are looking in, but I can
think of some graphical solutions that could give
you a ballpark estimate under some extremely limited
conditions. But I hesitate to mention them unless
I know more about what is going on.
One thing is for sure. You are NOT going to find
this in the IDL documentation or the CONTOUR command,
either one. :-)
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming (www.dfanning.com)
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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