[Cyan]<Imaging>Gargoyle>GGAlign.mesa!16

GGAlign.mesa

Last edited by Bier on August 7, 1985 9:37:25 pm PDT.

Contents: Browses a Gargoyle scene looking for features which the user might be interested in aligning things to (trajectories, horizontal and vertical lines from object corners, symmetry lines, etc.) and builds up a data structure to represent them. This data is then passed onto modules such as GGGravity for use in selection, caret placement, dragging, and rotating.

DIRECTORY

GGGravity,

GGModelTypes,

GGInterfaceTypes;

GGAlign: CEDAR DEFINITIONS =

BEGIN

GargoyleData: TYPE = GGInterfaceTypes.GargoyleData;

Line: TYPE = GGModelTypes.Line;

ObjectBag: TYPE = GGGravity.ObjectBag;

Point: TYPE = GGModelTypes.Point;

Vector: TYPE = GGModelTypes.Vector;

Scene: TYPE = GGModelTypes.Scene;

Sequence: TYPE = GGModelTypes.Sequence;

AddItemsForAction: PROC [gargoyleData: GargoyleData, objectBag: ObjectBag, action: ATOM];

action should be one of $SelectPoint, $Add, $Drag, $DragStartUp, $SelectTrajectory. The appropriate alignment objects will be added to the object bag.

END.