Zoom in/out on a ggplot2 graphic

[Martin Lavoie]

HI All!

I have been looking for a few days for potential examples but I did not find any.

This example (http://timelyportfolio.blogspot.ca/2013/08/ggplot2-meet-d3.html) illustrates really well what I would like to do.

I would like to zoom in/out on a graph (I am usually using ggplot2 with 100,000-200,000 points) but also with a dynamic input for the datasets and x and y variables. Is it possible?

I am also aware of this thread (https://groups.google.com/forum/#!msg/shiny-discuss/rJhy5sUOe1U/-tllnyS1RFAJ) on this great heatmap but I don't know how to implement on graphics like geom_point in ggplot2 and with a dynamic input.

I also tried g3plot (http://glimmer.rstudio.com/alexbbrown/g3plot/#dataSet=airquality,tabSelected=G3Plot) but with large datasets it was very slow and it does not seem to offer a dynamic input for x and y variables.

Any help would be appreciated or if someone could just point me in the right direction would help.

Thank you

Martin

[Daniel Chen]

I've done something similar with my ggplot graph.

Essentially I have sliders that limit the x-axis and y-axis bounds using `scale_y_continuous(limits=isolate(input$SLIDER_NAME)`

the `isoloate` is bound to a submit button

Here's the link to my server.R file: https://github.com/chendaniely/multidisciplinary-diffusion-model-experiments/blob/master/src/R/shiny/server.R

I've added the submit button widget that way the plot doesn't try to re-render and re-plot for every small slider change (helps with the overall responsiveness)

[Joe Cheng]

There also (as of a couple of weeks ago) exists an svgPanZoom htmlwidget that is purported to work with ggplot2 and Shiny:

http://www.buildingwidgets.com/blog/2015/1/15/week-02-

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[Martin Lavoie]

I almost forgot about that question.

thanks a lot Daniel and Joe for your help!!

Martin