GPArc

Unit : GPShapesUnit
Association : GPArcAsn
Inherits from : GPBoxBoundedShape, GPShape

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Description

An arc is part of the boundary of a framed oval. The oval is defined by the bounding box (see GPBoxBoundedShape). The start and end angles are defined in degrees, with 0° and 360° both to the right of the oval. Thus an arc representing the bottom left quarter of a filled oval should start at 180° and end at 270°.

Public Interface

CONSTRUCTOR Init;
Initializes a GPArc with (0,0) for both corners and 0 as its angles.

CONSTRUCTOR InitWithPoints (topLeft, bottomRight: GPPoint; startAngle, endAngle: integer);
Initializes a GPArc with top left and bottom right points, start and end angles.

CONSTRUCTOR InitWithSize (topLeft: GPPoint; width, height: integer; startAngle, endAngle: integer);
Initializes a GPArc with top left corner and dimensions, start and end angles.

CONSTRUCTOR InitWithCoords (leftX, topY, rightX, bottomY: integer; startAngle, endAngle: integer);
Initializes a GPArc with coordinates, start and end angles.

DESTRUCTOR Destroy; VIRTUAL;
Destroys a GPArc.

PROCEDURE SetStartAngle (startAngle: integer);
Modifies the start angle.

FUNCTION GetStartAngle: integer;
Returns the current start angle.

PROCEDURE SetEndAngle (endAngle: integer);
Modifies the end angle.

FUNCTION GetEndAngle: integer;
Returns the current end angle.

PROCEDURE Copy: GPShapeAsn; VIRTUAL;
Produce a copy of the GPArc.

PROCEDURE CopyAsGPArc: GPArcAsn;
Produce a copy of the GPArc.

FUNCTION Equal(other : GPArc): Boolean;
Returns TRUE if the coordinates of other are the same as this instance's.

Subclasses

None

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