Access data from user's cameras: Server function

Upon completion of line draw, returns a reactive variable that contains a vector of the y coordinates of what the user has drawn. This also includes the start point specified with `draw_start` This is the server component of shinyviewr. You never directly use this function but instead call it through the shiny function `callModule()`. See the example for how to do this. Paired with the UI function shinyviewr_UI.

shinyviewr(input, output, session, output_width = 300,
  output_height = NULL)

Arguments

input, output, session	you can ignore these as it is taken care of by shiny::callModule()
output_width	How many pixels wide want your returned photos/the view of the webcam. Defaults to 300.
output_height	How many pixels tall want your returned photos/the view of the webcam. If left unspecified, defaults to a square image, output_width value.

Value

A reactive function that will return a 3D array with dimensions (height, width, channels (RGBA)) corresponding to the image taken by the webcam when shutter was pressed. The RGBA are all in the range of 0-1.

See also

shinyviewr_UI

Examples

if (FALSE) {
camera_snapshot <- callModule( shinyviewr, 'my_camera', output_width = 350)
}