Are you running PyFerret? If so you will need to "set
text/font=arial" or some other true font before those commands
Where you can look up special-character numbers in one of the html symbol references, http://ferret.pmel.noaa.gov/Ferret/documentation/users-guide/commands-reference/SET#pyferret_embedded_symbols .yes? set text/font=ariel ! Use a font other than the Hershey font yes? plot/title="Thickness of 37.01 <<> <&sigma>"/i=1:300 sin(i/20) ! or,yes? plot/title="Thickness of 37.01 <#8804> <#963>"/i=1:300 sin(i/20)
The method is different for the Hershey font, which is the only font in Ferret, and is the default font in PyFerret.
There are all kinds of little details. Labels in Ferret use an ASCII font, in which special characters are just rendered as themselves. This means that for instance text which contains underscores doesn't get turned into a subscript. But also in ASCII fonts, the @ sign is not parsed as a font change but just written into the label as the @ sign. So, start in a Roman font, change to the math font, change back to the Roman font, then the Greek one.
The Symbol fonts use the number to choose the character to plot. It seems that the Character fonts want to be addressed using a Letter equivalent, not the number. (Look in the table for one of the alphabetical text fonts such as SR, see that 115 is "s", and use that. This is something I didn't know about the character fonts!)
And all of this is one of the little places where we're really happy to be moving towards PyFerret.yes? set text/font=hershey ! only use this in PyFerret yes? plot/title="@SRThickness of 37.01 @IM32@SR @CGs"/i=1:300 sin(i/20)
On 9/21/2016 9:07 AM, Patricia Handmann wrote: