Allow save of zoom pan state

[jasperpato]

Allow the zoom / pan state of the plot to be saved in a state variable so it can survive recompositions or navigation

[alshan]

Hi jasperpato , do you mean recomposition with a new figure in PlotPanel()?

[jasperpato]

Hi Igor Alshannikov (@alshan) If the user has panned and zoomed the plot, and then clicks something that changes some of the data in figure, am I correct that the zoom / pan state can be retained by "remembering" a figureModel input, or will the zoom / pan state be reset? We would like to have the option to retain the zoom / pan state when the data changes or a geom is added or removed, say.

[alshan]

Hi jasperpato, if you create the PlotFigureModel outside PlotPanel and remember it (e.g. val figureModel = remember { PlotFigureModel() }), then the model's state (e.g. zoom/pan state) will survive the recomposition that happens when you change the figure spec. I believe you'll see that the new plot shows your retained viewport.