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--
-- File: Visual3d_PickPath.cdl
-- Created: Lundi 25 Novembre 1991
-- Author: NW,JPB,CAL
--
---Copyright: MatraDatavision 1991,1992,1993
--
class PickPath from Visual3d
---Version:
---Purpose: PickPath is a vector ( pick_id, struct_id, elem_num ).
-- It's one of the constituents of a PickDescriptor.
-- There are many PickPaths in a PickDescriptor.
-- Each PickPath describes a structure or a sub-structure.
-- The pick_id is set by SetPickId method from Group.
---Keywords: Pick Path, PickId
---Warning:
---References:
uses
Structure from Graphic3d
raises
PickError from Visual3d
is
Create
returns PickPath from Visual3d;
---Level: Public
---Purpose: Creates an undefined PickPath.
Create ( AElemNumber : Integer from Standard;
APickId : Integer from Standard;
AStructure : Structure from Graphic3d)
returns PickPath from Visual3d;
---Level: Public
---Purpose: Creates a PickPath :
-- <AElemNumber> : Element number of the structure picked.
-- <APickId> : Pick identifier of the structure picked.
-- <AStructure> : The picked structure.
---------------------------------------------------
-- Category: Methods to modify the class definition
---------------------------------------------------
SetElementNumber ( me : in out;
AElemNumber : Integer from Standard )
is static;
---Level: Public
---Purpose: Modifies the PickPath <me>.
-- <AElemNumber> : Element number of the structure picked.
---Category: Methods to modify the class definition
SetPickIdentifier ( me : in out;
APickId : Integer from Standard )
is static;
---Level: Public
---Purpose: Modifies the PickPath <me>.
-- <APickId> : Pick identifier of the structure picked.
---Category: Methods to modify the class definition
SetStructIdentifier ( me : in out;
AStructure : Structure from Graphic3d )
is static;
---Level: Public
---Purpose: Modifies the PickPath <me>.
-- <AStructure> : Identifier of the structure picked.
---Category: Methods to modify the class definition
----------------------------
-- Category: Inquire methods
----------------------------
ElementNumber ( me )
returns Integer from Standard
---Level: Public
---Purpose: Returns the element number stocked in the PickPath <me>.
-- Category: Inquire methods
-- Warning: Raises PickError if PickPath is empty (no picked structure).
raises PickError from Visual3d is static;
PickIdentifier ( me )
returns Integer from Standard
---Level: Public
---Purpose: Returns the pick identifier stocked in the PickPath <me>.
-- Category: Inquire methods
-- Warning: Raises PickError if PickPath is empty (no picked structure).
raises PickError from Visual3d is static;
StructIdentifier ( me )
returns Structure from Graphic3d
---Level: Public
---Purpose: Returns the structure stocked in the PickPath <me>.
-- Category: Inquire methods
-- Warning: Raises PickError if PickPath is empty (no picked structure).
raises PickError from Visual3d is static;
--
fields
--
-- Class : Visual3d_PickPath
--
-- Purpose : Declaration of variables specific to the class
-- describing a picking.
--
-- Reminders : A pick is defined by :
-- - a vector (Elem_Num, Pick_Id, Structure)
--
--
-- the pick vector
MyElementNumber : Integer from Standard;
MyPickId : Integer from Standard;
MyStructure : Structure from Graphic3d;
-- the flag for definition
MyElementNumberIsDef : Boolean from Standard;
MyPickIdIsDef : Boolean from Standard;
MyStructureIsDef : Boolean from Standard;
end PickPath;
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