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-- File: BRepBuilderAPI_Transform.cdl
-- Created: Fri Dec 9 09:02:17 1994
-- Author: Jacques GOUSSARD
-- <jag@topsn2>
---Copyright: Matra Datavision 1994
class Transform from BRepBuilderAPI inherits ModifyShape from BRepBuilderAPI
---Purpose: Geometric transformation on a shape.
-- The transformation to be applied is defined as a
-- gp_Trsf transformation, i.e. a transformation which does
-- not modify the underlying geometry of shapes.
-- The transformation is applied to:
-- - all curves which support edges of a shape, and
-- - all surfaces which support its faces.
-- A Transform object provides a framework for:
-- - defining the geometric transformation to be applied,
-- - implementing the transformation algorithm, and
-- - consulting the results.
uses
Trsf from gp,
Location from TopLoc,
Shape from TopoDS,
Face from TopoDS,
ShapeModification from BRepBuilderAPI,
ListOfShape from TopTools
raises
NoSuchObject from Standard
is
Create(T: Trsf from gp)
returns Transform from BRepBuilderAPI;
---Purpose: Constructs a framework for applying the geometric
-- transformation T to a shape. Use the function Perform
-- to define the shape to transform.
Create(S: Shape from TopoDS; T: Trsf from gp;
Copy: Boolean from Standard = Standard_False)
returns Transform from BRepBuilderAPI;
---Purpose: Creates a transformation from the gp_Trsf <T>, and
-- applies it to the shape <S>. If the transformation
-- is direct and isometric (determinant = 1) and
-- <Copy> = Standard_False, the resulting shape is
-- <S> on which a new location has been set.
-- Otherwise, the transformation is applied on a
-- duplication of <S>.
Perform(me: in out; S : Shape from TopoDS;
Copy: Boolean from Standard = Standard_False)
---Purpose: pplies the geometric transformation defined at the
-- time of construction of this framework to the shape S.
-- - If the transformation T is direct and isometric, in
-- other words, if the determinant of the vectorial part
-- of T is equal to 1., and if Copy equals false (the
-- default value), the resulting shape is the same as
-- the original but with a new location assigned to it.
-- - In all other cases, the transformation is applied to a duplicate of S.
-- Use the function Shape to access the result.
-- Note: this framework can be reused to apply the same
-- geometric transformation to other shapes. You only
-- need to specify them by calling the function Perform again.
is static;
ModifiedShape(me; S: Shape from TopoDS)
returns Shape from TopoDS
---Purpose: Returns the modified shape corresponding to <S>.
---C++: return const&
raises NoSuchObject from Standard
-- if S is not the initial shape or a sub-shape
-- of the initial shape.
is redefined virtual;
Modified (me: in out; S : Shape from TopoDS)
---Purpose: Returns the list of shapes modified from the shape
-- <S>.
---C++: return const &
---Level: Public
returns ListOfShape from TopTools
is redefined virtual;
fields
myTrsf : Trsf from gp;
myLocation : Location from TopLoc;
myUseModif : Boolean from Standard;
end Transform;
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