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6e33d3ced2
Redundant keyword 'mutable' removed in CDL files. In IGESConvGeom_GeomBuilder, unused methods MakeXY() and MakeXYZ() removed. Method StepAP214_AutoDesignGroupAssignment::Init() replicating same method of the base class is removed as it causes CDL extraction error after above (seemingly irrelevant) changes.
206 lines
6.5 KiB
Plaintext
206 lines
6.5 KiB
Plaintext
-- Created on: 1993-03-24
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-- Created by: JCV
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-- Copyright (c) 1993-1999 Matra Datavision
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-- Copyright (c) 1999-2014 OPEN CASCADE SAS
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--
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-- This file is part of Open CASCADE Technology software library.
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--
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-- This library is free software; you can redistribute it and/or modify it under
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-- the terms of the GNU Lesser General Public License version 2.1 as published
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-- by the Free Software Foundation, with special exception defined in the file
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-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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-- distribution for complete text of the license and disclaimer of any warranty.
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--
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-- Alternatively, this file may be used under the terms of Open CASCADE
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-- commercial license or contractual agreement.
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class Line from Geom2d inherits Curve from Geom2d
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--- Purpose : Describes an infinite line in the plane (2D space).
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-- A line is defined and positioned in the plane with an
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-- axis (gp_Ax2d object) which gives it an origin and a unit vector.
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-- The Geom2d_Line line is parameterized as follows:
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-- P (U) = O + U*Dir
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-- where:
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-- - P is the point of parameter U,
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-- - O is the origin and Dir the unit vector of its positioning axis.
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-- The parameter range is ] -infinite, +infinite [.
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-- The orientation of the line is given by the unit vector
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-- of its positioning axis.
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-- See Also
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-- GCE2d_MakeLine which provides functions for more
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-- complex line constructions
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-- gp_Ax2d
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-- gp_Lin2d for an equivalent, non-parameterized data structure.
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uses Ax2d from gp,
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Dir2d from gp,
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Lin2d from gp,
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Pnt2d from gp,
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Vec2d from gp,
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Trsf2d from gp,
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Geometry from Geom2d,
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Shape from GeomAbs
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raises RangeError from Standard
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is
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Create (A : Ax2d) returns Line;
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--- Purpose :
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-- Creates a line located in 2D space with the axis placement A.
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-- The Location of A is the origin of the line.
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Create (L : Lin2d) returns Line;
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--- Purpose :
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-- Creates a line by conversion of the gp_Lin2d line L.
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Create (P : Pnt2d; V : Dir2d) returns Line;
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--- Purpose : Constructs a line passing through point P and parallel to
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-- vector V (P and V are, respectively, the origin
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-- and the unit vector of the positioning axis of the line).
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SetLin2d (me : mutable; L : Lin2d);
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--- Purpose :
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-- Set <me> so that <me> has the same geometric properties as L.
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SetDirection (me : mutable; V : Dir2d);
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--- Purpose : changes the direction of the line.
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Direction (me) returns Dir2d from gp;
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--- Purpose : changes the direction of the line.
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---C++: return const &
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SetLocation (me : mutable; P : Pnt2d);
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--- Purpose :
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-- Changes the "Location" point (origin) of the line.
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Location (me) returns Pnt2d from gp;
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--- Purpose :
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-- Changes the "Location" point (origin) of the line.
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---C++: return const &
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SetPosition (me : mutable; A : Ax2d);
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--- Purpose :
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-- Changes the "Location" and a the "Direction" of <me>.
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Position(me) returns Ax2d from gp
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---C++: return const &
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is static;
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Lin2d (me) returns Lin2d;
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--- Purpose :
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-- Returns non persistent line from gp with the same geometric
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-- properties as <me>
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Reverse (me : mutable);
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--- Purpose : Changes the orientation of this line. As a result, the
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-- unit vector of the positioning axis of this line is reversed.
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ReversedParameter(me; U : Real) returns Real;
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---Purpose: Computes the parameter on the reversed line for the
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-- point of parameter U on this line.
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-- For a line, the returned value is -U.
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FirstParameter (me) returns Real;
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--- Purpose : Returns RealFirst from Standard.
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LastParameter (me) returns Real;
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--- Purpose : Returns RealLast from Standard
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IsClosed (me) returns Boolean;
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--- Purpose : Returns False
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IsPeriodic (me) returns Boolean;
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--- Purpose : Returns False
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Continuity (me) returns Shape from GeomAbs;
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--- Purpose : Returns GeomAbs_CN, which is the global continuity of any line.
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Distance (me; P : Pnt2d) returns Real;
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--- Purpose : Computes the distance between <me> and the point P.
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IsCN (me; N : Integer) returns Boolean;
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--- Purpose : Returns True.
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D0(me; U : Real; P : out Pnt2d);
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---Purpose: Returns in P the point of parameter U.
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-- P (U) = O + U * Dir where O is the "Location" point of the
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-- line and Dir the direction of the line.
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D1 (me; U : Real; P : out Pnt2d; V1 : out Vec2d);
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--- Purpose :
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-- Returns the point P of parameter u and the first derivative V1.
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D2 (me; U : Real; P : out Pnt2d; V1, V2 : out Vec2d);
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--- Purpose :
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-- Returns the point P of parameter U, the first and second
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-- derivatives V1 and V2. V2 is a vector with null magnitude
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-- for a line.
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D3 (me; U : Real; P : out Pnt2d; V1, V2, V3 : out Vec2d);
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--- Purpose :
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-- V2 and V3 are vectors with null magnitude for a line.
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DN (me; U : Real; N : Integer) returns Vec2d
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--- Purpose : For the point of parameter U of this line, computes
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-- the vector corresponding to the Nth derivative.
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-- Note: if N is greater than or equal to 2, the result is a
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-- vector with null magnitude.
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-- Exceptions Standard_RangeError if N is less than 1.
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raises RangeError;
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Transform (me : mutable; T : Trsf2d);
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---Purpose: Applies the transformation T to this line.
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TransformedParameter(me; U : Real; T : Trsf2d from gp) returns Real
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---Purpose: Computes the parameter on the line transformed by
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-- T for the point of parameter U on this line.
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-- For a line, the returned value is equal to U multiplied
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-- by the scale factor of transformation T.
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is redefined;
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ParametricTransformation(me; T : Trsf2d from gp) returns Real
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---Purpose: Returns the coefficient required to compute the
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-- parametric transformation of this line when
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-- transformation T is applied. This coefficient is the
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-- ratio between the parameter of a point on this line
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-- and the parameter of the transformed point on the
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-- new line transformed by T.
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-- For a line, the returned value is the scale factor of the transformation T.
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is redefined;
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Copy (me) returns like me;
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---Purpose: Creates a new object, which is a copy of this line.
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fields
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pos : Ax2d;
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end;
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