Export diferent plots, without change the visual plot.

[Carlos Ferras]

i'm developing a software, in which, i have multeples data sets, each data set represent a different plot, and the user can select the data set to plot, thats works perfectly, but what i need is generate all the images in png of the data sets without interrupt what the user is seen, i try multeples solutions but nothing works, even i create a second plot widget, in background to do that but the images are in wrong dimentions.

can some one help me?