Re: [ferret_users] Putting text on a figure that a value from a calculation in the script

[Andre Paim <paim.oceano@xxxxxxxxx>]

Hi there Paul,

You can do that without even using the def sym. You just need to define a variable with the value you want like and them use the label command:

let label = (any equation you want)

label 1 1 -1 0 0.2 "`label`"

It is importante to use `` to let ferret know that you want the value of your _expression_ and them ""... I don't know exactly why but I think it's just so ferret know that want to plot what is in between them. 

Let me know if that doesn't solve your problem. 

Best regards,

Andre Rodrigues

On 7 January 2016 at 13:41, Paul Goddard <goddarpb@xxxxxxxxx> wrote:

Hello,

Is it possible to add a label/text to a figure that is the value of a calculation made in the script prior to plotting. For example, I would like to put the value of heat content on my figure where heat content is calculated previously in the same plotting script. I hope to eliminate the need to change the label text in the plotting script each time I tweak the calculation.

I know that one can define a symbol and have the label place a string when called upon, ie

def sym val = 0

label "($val)"

and 0 will be placed on the figure

​But this will not work if the defined symbol is an equation and wanting to have the answer placed on the figure.

... I hope this is clear.

Thanks in advance,

Paul​

--

Paul Goddard

PhD Candidate

Department of Geosciences

University of Arizona