R: Controls to use with playwidget().

propertyControl {rgl} | R Documentation

## Controls to use with playwidget().

### Description

These are setter functions to produce actions in a Shiny app, or in an animation.

### Usage

    subsetControl(value = 1, subsets, subscenes = NULL,
                             fullset = Reduce(union, subsets),
                             accumulate = FALSE)
    propertyControl(value = 0, entries, properties, objids, values = NULL,
                    param = seq_len(NROW(values)) - 1, interp = TRUE)

### Arguments

`value` | The value to use for input (typically `input$value` in a Shiny app.)
`subsets` | A list of vectors of object identifiers; the value will choose among them.
`fullset` | Objects in the subscene which are not in `fullset` will not be touched.
`subscenes` | The subscenes to be controlled. If `NULL`, the root subscene.
`accumulate` | If `TRUE`, the subsets will accumulate (by union) as the value increases.
`entries, properties, objids` | Which properties to set.
`values` | Values to set.
`param` | Parameter values corresponding to the rows of `value`
`interp` | Whether to use linear interpolation between `param` values

### Details

`subsetControl` produces data for `playwidget` to display subsets of the object in one or more subscenes. This code will not touch objects in the subscenes if they are not in `fullset`. `fullset` defaults to the union of all the object ids mentioned in `subsets`, so by default if an id is not mentioned in one of the subsets, it will not be controlled by the slider. If `value` is specified in R code, it will be a 1-based index into the `subsets` list; when specified internally in Javascript, 0-based indexing into the corresponding array will be used.

`propertyControl` sets individual properties. Here the row of `values` is determined by the position of `value` in `param`.

### Value

These functions return controller data in a list of class `"rglControl"`.

### Author(s)

Duncan Murdoch

### See Also

`subsetSetter` for a way to embed a pure Javascript control, and `playwidget` for a way to use these in animations (including Shiny), `rglShared` for linking using the crosstalk package.

[Package rgl version 0.99.9 Index]