old-classes {hexbin} | R Documentation

## Class "unit" and "viewport" as S4 classes

### Description

Package "hexbin" now uses S4 classes throughout and hence needs to `setOldClass` both `"unit"` and `"viewport"` (which are S3 classes from the grid package), in order to be able to use those in slots of its own classes.

### Objects from the Class

A virtual Class: No objects may be created from it.

### Extends

Class `"oldClass"`, directly.

### Methods

No methods defined with class "unit" in the signature.

[Package hexbin version 1.18.0 Index]