See help for more help with all things Shiny. Our developers monitor these forums and answer questions periodically. If you have questions about this article or would like to discuss ideas presented here, please post on RStudio Community. Learn moreįor more on this topic, see the following resources:Ĭoordinated multiple views (linked brushing) Next: learn about how to easily select rows of data with interactive plots. While click, dblclick, and hover have x and y coordinates, brush is slightly different: because it’s a box, it has xmin, xmax, ymin, and ymax. plotOutput ( "plot1", click = "plot_click" )įor example, this app will print out the x and y coordinate position of the mouse cursor when a click occurs (to see it in action, click in the plot area of the app rendered below the code): library ( shiny ) ui <- basicPage ( plotOutput ( "plot1", click = "plot_click" ), verbatimTextOutput ( "info" ) ) server <- function ( input, output ) shinyApp ( ui, server ) For example, this will define a new input value, input$plot_click, which contains the location of the previous mouse click. You’ll need it in the following section, where you’ll create a couple of interactive Google Maps with R. Import an external file containing the JS code only. Once created, copy the string code somewhere safe. Add the onclick attribute to an HTML tag (preferably a button) to trigger JS as soon as it is clicked. Once done, you’ll see them listed on the main dashboard page: Screenshot showing the enabled Google APIs dashboard. You can search for the APIs from there and enable all three. Clicking repeatedly only seems to change one coordinate: ui. I would like to get the coordinates of the click on the plot so users can do things with the map, but the coordinates are very strange (either NULL or something very small). Go under Credentials and click on + Create credentials to get a new API key: Image 2 Creating Maps API key. Maps Static API Geocoding API To enable them, click on the menu icon, go under APIs & Services and click on Library. I have the start of a shiny app with a ggplot map of the world. To get the position of the mouse when a plot is clicked, you simply need to use the click option with the plotOutput(). The final step is to create a new API key. Users can modify points shape, size and color, as well as font type and size. This makes it easy to add features like selecting points and regions, as well as zooming in and out of images. Heatmapper is a freely available web server that allows users to interactively visualize their data in the form of heat maps through an easy-to-use. A Shiny app allowing users to upload a CSV file with latitude and longitude coordinates to create and customize a U.S. As of version 0.12.0, Shiny has built-in support for interacting with static plots generated by R’s base graphics functions, and those generated by ggplot2.
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