Re: Runtime input to ncl script

Thank you Mary and Wei for the valuable informations.

Mary,

I have tried according to your suggestion. The message from the system is as
follows.

[gibies@gibies ~]$ ng4ex xy13c
Resource directory </usr/share/ncarg/resfiles> does not exist.

How can I fix the problem ?

Hello NCL users,

Does anybody else have an easier way to capture the mouse click position
(lat, lon) from an NCL display.

Thanking you

Gibies George,CSIR-RF,
Climate and Global Modelling Division,
Indian Institute of Tropical Meteorology,
Dr. Homi Bhabha Road,
NCL (P. O.), Pashan,
Pune 411008, India.

http://sites.google.com/site/gibiesge/

Think about the environment. Please don't print this e-mail unless it is
necessary.
On 25 June 2010 01:55, Wei Huang <huangwei@ucar.edu> wrote:

> JaNCL has no way to show the value where the mouse points to,
> as JaNCL is to generate a NCL script based on user choices, then
> run NCL to get an image, and then display the image. At the stage
> of display images, it loses all the knowledge of how this image is
> generated, and so there is no way to retrieve its value at any point.
>
> Wei
>
> huangwei@ucar.edu
> VETS/CISL
> National Center for Atmospheric Research
> P.O. Box 3000 (1850 Table Mesa Dr.)
> Boulder, CO 80307-3000 USA
> (303) 497-8924
>
>
>
>
>
> On Jun 24, 2010, at 2:04 PM, Mary Haley wrote:
>
> Hi Gibies,
>
> I'm afraid there's no way to do this with NCL. We have a sample of this
> using a C program, but it's going to be a bit more complicated to do the
> graphics.
>
> Try running:
>
> ng4ex xy13c
>
> to see if it compiles (you need some additional X11 libraries). This
> command will copy "xy13c.c" to your current directory and try to compile it
> using "nhlcc".
> Once it runs, you can click on the pop-up window with your left-mouse
> button to get values.
>
> Wei Huang has developed a prototype Java/NCL interactive GUI. Maybe it can
> do something like this? Wei?
>
> --Mary
>
> On Jun 24, 2010, at 1:30 AM, gibies george wrote:
>
> Thank you Dave, Chen and Dennis for giving a solution for my previous
> question.
>
> Hello NCL users,
>
> I need another help.
>
> I would like to know whether I can get the position of my mouse-click on
> the plot. That is the latitude and longitude value of the point which I have
> clicked.
>
> The same thing I have done in GrADS using the following script.
>
> say 'Click where you want the left upper corner of the box'
> 'query bpos'
> xb1o = subwrd(result,3)
> yb2o = subwrd(result,4)
>
> Can I do similar thing in NCL
>
> Thanking you in Advance.
>
> Gibies George,CSIR-RF,
> Climate and Global Modelling Division,
> Indian Institute of Tropical Meteorology,
> Dr. Homi Bhabha Road,
> NCL (P. O.), Pashan,
> Pune 411008, India.
>
> http://sites.google.com/site/gibiesge/
>
> Think about the environment. Please don't print this e-mail unless it is
> necessary.
>
>
>
> On 21 June 2010 17:53, gibies george <gibiesgeorge@gmail.com> wrote:
>
>> Hello friends,
>>
>> While writing an ncl script I came through a requirement to read some
>> values to the script at run time. Is there a way to do it in ncl script ?
>> In grads I used *promt* and *pull* for this purpose. Is there any thing
>> similer to that available in NCL script language ?
>>
>>
>> Gibies George,CSIR-RF,
>> Climate and Global Modelling Division,
>> Indian Institute of Tropical Meteorology,
>> Dr. Homi Bhabha Road,
>> NCL (P. O.), Pashan,
>> Pune 411008, India.
>>
>> http://sites.google.com/site/gibiesge/
>>
>> Think about the environment. Please don't print this e-mail unless it is
>> necessary.
>>
>
>
>
> --
>
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Received on Thu Jul 8 03:50:15 2010