sPlotView-class {iSPlot} | R Documentation

## Class "sPlotView": A class to represent a scatterplot view

### Description

sPlotView is a class to represent a view that is a scatterplot. sPlotView inherits from the class, plotView, which inherits from the virtual class, genView.

### Objects from the Class

Objects can be created by calls of the form `new("sPlotView", ...)`.

### Slots

`dfRows`:
  the dataframe rows that are plotted, a numeric vector
`colx`:
  the dataframe column plotted on the x axis, a numeric vector of length one
`coly`:
  the dataframe column plotted on the y axis, a numeric vector of length one
`plotDevice`:
  the plot device number
`plotPar`:
  the parameter list for the plot, see par()
`drArea`:
  an object of class `"GtkDrawingArea"`
`dataName`:
  a character string describing what data is shown in the view
`win`:
  an object of class `"GtkWindow"` that holds the view
`winNum`:
  a number that tells what number view this is (for example, the first view created will have winNum=1)

### Extends

Class `"plotView"`, directly. Class `"genView"`, by class `"plotView"`.

### Methods

clickEvent
  Handles button press events on a scatterplot: identifies the point and creates and handles a gUpdateDataMessage object depending on the view mode
colx
  Returns the `colx` slot
colx<-
  Sets the `colx` slot
coly
  Returns the `coly` slot
coly<-
  Sets the `coly` slot
dfRows
  Returns the `dfRows` slot
dfRows<-
  Sets the `dfRows` slot
motionEvent
  Handles motion notify events on a scatterplot: if the view mode is identify, it calls the function checkPoint, which identifies the point and creates and handles a gUpdateDataMessage object
viewUpdateData
  Called by the initialize method when creating an object of class, gUpdateDataMessage. The viewUpdateData method determines how the data will be updated based on the view mode, the view object, and the location of the event (which point was clicked in this case). A list containing the slot values for the gUpdateDataMessage object is returned.

### Author(s)

Elizabeth Whalen

### See Also

`identifyPoint`, `checkPoint`, `genView-class`, `plotView-class`, `spreadView-class`, `gUpdateDataMessage-class`

### Examples

      if (interactive())
      {
        createControlWindow()
        # should load data through Open Data or Open File under the File menu
        data(USArrests)
        loadDFData(USArrests,"USArrests")
        # plotting the data should occur through Plot Data under
        # the Display menu
        createView(type = "plotView", dataName = "USArrests",
                   plotType = "sPlotView", dfRows = 1:nrow(USArrests),
                   dfColumns = 1:2)
        # this will create an object of class, sPlotView
        is(get("viewList",viewEnv)[[1]],"sPlotView")
      }

[Package iSPlot version 1.0.7 Index]