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-- File: Graphic2d_Marker.cdl
-- Created: Jeudi 26 Janvier 1995
-- Author: CAL
-- Modified: TCL G002A, 28-11-00, new section "inquire methods"
-- SAV 04/07/02 : DrawVertex() redefined.
---Copyright: Matra Datavision 1995
class Marker from Graphic2d inherits Line from Graphic2d
---Version:
---Purpose: The primitive Marker
---Keywords: Primitive, Marker
---Warning:
---References:
uses
Drawer from Graphic2d,
GraphicObject from Graphic2d,
Length from Quantity,
PlaneAngle from Quantity,
FStream from Aspect,
IFStream from Aspect
raises
MarkerDefinitionError from Graphic2d
is
-------------------------
-- Category: Constructors
-------------------------
Create (aGraphicObject: GraphicObject from Graphic2d;
X, Y: Length from Quantity)
returns mutable Marker from Graphic2d;
---Level: Public
---Purpose: Creates a pixel point marker at position <X>,<Y>
---Category: Constructors
Create (aGraphicObject: GraphicObject from Graphic2d;
anIndex: Integer from Standard;
X, Y: Length from Quantity;
aWidth: Length from Quantity;
anHeight: Length from Quantity;
anAngle: PlaneAngle from Quantity = 0.0)
returns mutable Marker from Graphic2d
---Level: Public
---Purpose: Creates the predefined marker index <anIndex>
-- at position <X>,<Y> and size <aWidth>,<aHeight>.
-- Angle is measured counterclockwise with 0 radian
-- at 3 o'clock.
---Category: Constructors
---Trigger: Raises MarkerDefinitionError if the
-- marker index is <= 0 or undefined in the MarkMap,
-- or the marker size <aWidth,anHeight> is null.
raises MarkerDefinitionError from Graphic2d;
--------------------------
-- Category: Draw and Pick
--------------------------
Draw (me : mutable; aDrawer: Drawer from Graphic2d)
is static protected;
---Level: Internal
---Purpose: Draws the marker <me>.
Pick (me : mutable; X, Y: ShortReal from Standard;
aPrecision: ShortReal from Standard;
aDrawer: Drawer from Graphic2d)
returns Boolean from Standard
is static protected;
---Level: Internal
---Purpose: Returns Standard_True if the marker <me> is picked,
-- Standard_False if not.
-- Warning: Checks only if the point <X>, <Y> is in the
-- boundary rectangle of <me>
DrawVertex( me : mutable; aDrawer: Drawer from Graphic2d;
anIndex: Integer from Standard)
is redefined protected;
--------------------------------------
-- Category: Inquire methods
--------------------------------------
Position( me; X, Y: out Length from Quantity );
---Level: Public
---Purpose: returns the coordinates of the position of the marker
Size( me; aW, aH: out Length from Quantity );
---Level: Public
---Purpose: returns the width and height of the marker
Index( me ) returns Integer from Standard;
---Level: Public
---Purpose: returns the index of marker in the map of markers
Angle( me ) returns PlaneAngle from Quantity;
---Level: Public
---Purpose: returns the angle of the marker
----------------------------------------------------------------------
Save( me; aFStream: in out FStream from Aspect ) is virtual;
-- Retrieve( me; aIFStream: in out IFStream from AIS2D ) is virtual;
fields
myMarkIndex: Integer from Standard;
myX: ShortReal from Standard;
myY: ShortReal from Standard;
myWidth: ShortReal from Standard;
myHeight: ShortReal from Standard;
myAngle: ShortReal from Standard;
end Marker from Graphic2d;
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