Re: Maxima and minima on contour plots

[kessler@xxxxxxxxxxxxx (Billy Kessler)]

Personally, I would be happy just with the capability to list the 
high/low values and their locations on the plot to my ferret session. 
Then it would be trivial to make these labels manually, in precisely 
the size/format/font/position desired. For instance, I cannot imagine 
an automatic procedure that would place such labels so as not to 
overrun contour labels, land boundaries, dense regions of contours, 
etc (e.g. the analogous NCAR contour package capability which only
gets the right position by chance), whereas the human eye can easily 
tweak the position for best readability.

Billy K
 
> Hello everyone,
> It often happens that just as we start to look at a new capability for
> Ferret, or get a question from someone, folks start asking about it
> from other directions.   I have just started to look into writing an
> external function for Ferret to do this.
> 
> As the project is in early stages, I'm open to suggestions.  Anyone have
> an algorithm or code that finds local max and min's?
> 
> Ansley Manke
> 
> Mark Williams wrote:
> 
> > Hello ferret users
> >
> > Is there a simple way to get ferret to plot the maximum and/or minimum
> > value of a variable on a countour plot?  e.g. the central pressure of a
> > high pressure system?
> >
> > Thanks
> >
> > --
> > Mark Williams
> > Regional Director (Victoria)
> > Phone 09 9669 4968
> 
>