Hi Michael! I'm working up to Image.save("something.png"). The program will produce a picture for each of five different monitors each day, and then they'll end up on a web page, so a .png is desired. The program now draws the canvas, then uses an ImageGrab.grab() to make a picture of the Canvas. The problem, in Debian/X11/etc. is that you have to be logged in and looking at what is going on. If you try to run the image-making remotely (ssh -Y'ing), or using a cron job, everything works, but the pictures come out blank because there's no valid $DISPLAY. I'm trying to get it automated with the Image, however forcing me to look at the pictures and watch for anomalies in the signals each day is not a bad thing. :)
Yeah, getting the font of an Entry() field for the proportional font, or from a Text() for the mono-spaced font is just what I figured out 20+ years ago. It seemed to work on everything everywhere back then and kept all of the fonts consistent within a program on a given platform. Bob The picture collection is at www.passcal.nmt.edu/~bob/gpsmon > On 2023-07-28, at 11:10, Michael Lange <klappn...@web.de> wrote: > > Hi, > > On Fri, 28 Jul 2023 09:08:11 -0600 > Bob Greschke <b...@passcal.nmt.edu> wrote: > >> Hi! >> >> I'm plotting some stuff to a Canvas() (second-by-second signal-to-noise >> values for GPS satellites) and using something like >> >> >> >> in the program to get the font to use for text labels and stuff on the >> canvas. >> >> I can't figure out how to get the same font for the an Image (so I can >> duplicate the Canvas and save it as a png, of course). Without >> specifying anything the text used on the image looks something like >> Courier. >> > > do you use Canvas.postscript() to export the canvas contents to an image? > If yes, the problem is probably that Tk and postscript disagree about the > exact spelling of the font name and so postscript falls back to some > default font. > > (As a side note: > > PROGPropFont = Font(font = Entry()["font"]) > > seems a bit over-complicated to me, simply doing > > PROGPropFont = Font(name = "TkDefaultFont", exists = True) > > should give you the same result. scnr :) ) > > Have a nice day, > > Michael > > _______________________________________________ > Tkinter-discuss mailing list > Tkinter-discuss@python.org > https://mail.python.org/mailman/listinfo/tkinter-discuss > _______________________________________________ Tkinter-discuss mailing list Tkinter-discuss@python.org https://mail.python.org/mailman/listinfo/tkinter-discuss