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-- File: BRepBuilderAPI_FindPlane.cdl
-- Created: Thu Nov 2 11:36:39 1995
-- Author: Jing Cheng MEI
-- <mei@junon>
---Copyright: Matra Datavision 1995
class FindPlane from BRepBuilderAPI
---Purpose: Describes functions to find the plane in which the edges
-- of a given shape are located.
-- A FindPlane object provides a framework for:
-- - extracting the edges of a given shape,
-- - implementing the construction algorithm, and
-- - consulting the result.
uses
Shape from TopoDS,
Plane from Geom
raises
NoSuchObject from Standard
is
Create
returns FindPlane from BRepBuilderAPI;
---Purpose: Initializes an empty algorithm. The function Init is then used to define the shape.
Create (S : Shape from TopoDS;
Tol : Real from Standard = -1)
returns FindPlane from BRepBuilderAPI;
---Purpose: Constructs the plane containing the edges of the shape S.
-- A plane is built only if all the edges are within a distance
-- of less than or equal to tolerance from a planar surface.
-- This tolerance value is equal to the larger of the following two values:
-- - Tol, where the default value is negative, or
-- - the largest of the tolerance values assigned to the individual edges of S.
-- Use the function Found to verify that a plane is built.
-- The resulting plane is then retrieved using the function Plane.
Init (me : in out;
S : Shape from TopoDS;
Tol : Real from Standard = -1);
---Purpose: Constructs the plane containing the edges of the shape S.
-- A plane is built only if all the edges are within a distance
-- of less than or equal to tolerance from a planar surface.
-- This tolerance value is equal to the larger of the following two values:
-- - Tol, where the default value is negative, or
-- - the largest of the tolerance values assigned to the individual edges of S.
-- Use the function Found to verify that a plane is built.
-- The resulting plane is then retrieved using the function Plane.
Found(me)
returns Boolean from Standard;
---Purpose: Returns true if a plane containing the edges of the
-- shape is found and built. Use the function Plane to consult the result.
Plane(me)
returns mutable Plane from Geom;
---Purpose: Returns the plane containing the edges of the shape.
-- Warning
-- Use the function Found to verify that the plane is built. If
-- a plane is not found, Plane returns a null handle.
fields
myPlane : Plane from Geom;
end FindPlane;
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