--
-- File      :  DrawingWithRotation.cdl
-- Created   :  Sat 9 Jan 1993
-- Author    : CKY / Contract Toubro-Larsen ( TCD )
--
---Copyright : MATRA-DATAVISION  1993
--

class DrawingWithRotation from IGESDraw  inherits IGESEntity

        ---Purpose: defines IGESDrawingWithRotation, Type <404> Form <1>
        --          in package IGESDraw
        --
        --          Permits rotation, in addition to transformation and
        --          scaling, between the view and drawing coordinate systems

uses

        HArray1OfIGESEntity     from IGESData,
        HArray1OfReal           from TColStd,
        ViewKindEntity          from IGESData,
        HArray1OfViewKindEntity from IGESDraw,
        Pnt2d                   from gp,
        XYZ                     from gp,
        XY                      from gp,
        HArray1OfXY             from TColgp

raises DimensionMismatch, OutOfRange

is

        Create returns mutable DrawingWithRotation;

        -- Specific Methods pertaining to the class

        Init (me                   : mutable;
              allViews             : HArray1OfViewKindEntity;
              allViewOrigins       : HArray1OfXY;
              allOrientationAngles : HArray1OfReal;
              allAnnotations       : HArray1OfIGESEntity)
        raises DimensionMismatch;
        ---Purpose : This method is used to set the fields of the class
        --           DrawingWithRotation
        --      - allViews             : Pointers to View entities
        --      - allViewOrigins       : Origin coords of transformed views
        --      - allOrientationAngles : Orientation angles of transformed views
        --      - allAnnotations       : Pointers to Annotation entities
        -- raises exception if Lengths of allViews, allViewOrigins and
        -- allOrientationAngles are not same.

        NbViews (me) returns Integer;
        ---Purpose : returns the number of view pointers in <me>

        ViewItem (me; Index : Integer) returns ViewKindEntity
        raises OutOfRange;
        ---Purpose : returns the View entity indicated by Index
        -- raises an exception if Index <= 0 or Index > NbViews().

        ViewOrigin (me; Index : Integer) returns Pnt2d
        raises OutOfRange;
        ---Purpose : returns the Drawing space coordinates of the origin of the
        -- Transformed view indicated by Index
        -- raises an exception if Index <= 0 or Index > NbViews().

        OrientationAngle (me; Index : Integer) returns Real
        raises OutOfRange;
        ---Purpose : returns the Orientation angle for the Transformed view
        -- indicated by Index
        -- raises an exception if Index <= 0 or Index > NbViews().

        NbAnnotations (me) returns Integer;
        ---Purpose : returns the number of Annotation entities in <me>

        Annotation (me; Index : Integer) returns IGESEntity
        raises OutOfRange;
        ---Purpose : returns the Annotation entity in this Drawing, indicated by Index
        -- raises an exception if Index <= 0 or Index > NbAnnotations().

    	    --  infered informations

        ViewToDrawing(me; NumView : Integer; ViewCoords : XYZ)
        returns XY;
        -- returns the Transformation of a View from View space to Drawing
        -- space.

    	DrawingUnit (me; value : out Real) returns Boolean;
	---Purpose : Returns the Drawing Unit Value if it is specified (by a
	--           specific property entity)
	--           If not specified, returns False, and val as zero :
	--           unit to consider is then the model unit in GlobalSection

    	DrawingSize (me; X,Y : out Real) returns Boolean;
	---Purpose : Returns the Drawing Size if it is specified (by a
	--           specific property entity)
	--           If not specified, returns False, and X,Y as zero :
	--           unit to consider is then the model unit in GlobalSection

fields

--
-- Class    : IGESDraw_DrawingWithRotation
--
-- Purpose  : Declaration of the variables specific to a
--            DrawingWithRotation Entity.
--
-- Reminder : A DrawingWithRotation Entity is defined by :
--                    - Pointers to View entities
--                    - Origin coordinates of transformed views
--                    - Orientation angles of transformed views
--                    - Pointers to Annotation entities
--

        theViews             : HArray1OfViewKindEntity;

        theViewOrigins       : HArray1OfXY;

        theOrientationAngles : HArray1OfReal;

        theAnnotations       : HArray1OfIGESEntity;

end DrawingWithRotation;