Plot disappears after axes command
8 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
Joakim Magnusson
el 26 de Jul. de 2016
Comentada: Joakim Magnusson
el 27 de Jul. de 2016
I have a GUI where i plot two curves in the same figure. later in the program i want to plot a third curve in the same figure. To do so i first choose that figure to plot in with the axes command. When i do so one of the previous curves disappears and i can't understand why. Someone who knows?
7 comentarios
Adam
el 27 de Jul. de 2016
Are you using R2016a or later? If so the help appears to now say that plotyy is "not recommended", although it doesn't say why. It says you should use 'yyaxis' instead, which is a newer function.
Stephen23
el 27 de Jul. de 2016
Editada: Stephen23
el 27 de Jul. de 2016
Actually the axes documentation does describe one syntax which lets you provide an axes handle and it will make those axes the current axes: " axes(h) makes existing axes h the current axes and brings the figure containing it into focus"
However I would advise against using this in serious code, and instead always explicitly specify the axes in every plot function:
plotyy(axh,...)
Almost all plot functions support this, and it is ultimately much simpler and much more robust. It prevents users' clicking from changing the behavior of your code!
Respuesta aceptada
Joakim Magnusson
el 27 de Jul. de 2016
2 comentarios
Adam
el 27 de Jul. de 2016
plotyy, in common with all main plotting functions (possibly some older ones in toolboxes are exceptions, I'm not sure), has an overload that takes an explicit axes handle as its first argument.
I would strongly recommend to always use this form rather than trying to set which axes is in focus and then plotting with that as an assumption. Often that works fine, but if, for example, the user is able to click on a UI or bring a different figure into focus while the code is running this can lead to unexpected results.
Más respuestas (0)
Ver también
Categorías
Más información sobre Two y-axis en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!