1.50.2 Send methods

elevation ->initialise: name=[name|int]*, height=[int], colour=[{hilited,reduced}|colour|pixmap], relief=[colour|pixmap], shadow=[colour|pixmap], kind=[{3d,shadow}], background=[{reduced}|colour|pixmap]

Create from elevation<-name and description parameters. In most cases the user will create an elevation object simply from its elevation<-height:

?- new(X, elevation(1)).

This will create a default elevation object. See the various attributes for the interpretation of the default values.

elevation ->unlink:

If the elevation<-name is not @nil, delete this elevation from the reuse table @elevations.