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CGlue(3U) InterViews Reference Manual CGlue(3U)

NAME

CGlue - connector glue

SYNOPSIS

#include <Unidraw/cglue.h>

DESCRIPTION

CGlue defines a natural size, elasticity (its rate of stretching and shrinking relative to other CGlue), and deformation limits (total amount it can stretch and shrink) in both the horizontal and vertical dimensions. CGlue can be interposed between two connected connectors to augment their connectivity semantics; it acts like two non-linear springs, one horizontal and one vertical, connecting the connectors' centers.

PUBLICOPERATIONS

CGlue(
float hnat = 0, float vnat = 0,
float hshr = 0, float hstr = 0,
float vshr = 0, float vstr = 0,
float hshrlim = 0, float hstrlim = 0,
float vshrlim = 0, float vstrlim = 0
)
CGlue(const Shape&)
Instantiate CGlue, providing the requisite parameters explicitly orinferring them from a Shape object. If a shape is supplied, then the CGlue adopts the shape's natural size, and it assigns the shape's stretchability and shrinkability values to its corresponding CGlue elasticity members to obtain a proportionately equivalent elasticity. It also assigns the shape's stretchability and shrinkability values to its deformation limit members. The parameters are described below:

hnat, vnat: horizontal and vertical natural sizes, screen units

hshr, vshr: horizontal and vertical shrinking rate, constant units

hstr, vstr: horizontal and vertical stretching rate, constant units

hshrlim, vshrlim: horizontal and vertical shrink limit, screen units

hstrlim, vstrlim: horizontal and vertical stretch limit, screen units

CGlue* Copy()
Create a copy of this CGlue instance.
void Rigid()
Set all elasticity and deformation limits equal to zero.
void Interpose(const CGlue* glue)
Change this instance's attributes to reflect the series combination ofthis and glue.

SEEALSO

Connector(3U), Shape(3I)
23 November 1990 Unidraw