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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.
183 lines
6.4 KiB
Plaintext
183 lines
6.4 KiB
Plaintext
-- Created on: 1993-03-10
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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 Circle from Geom inherits Conic from Geom
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---Purpose : Describes a circle in 3D space.
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-- A circle is defined by its radius and, as with any conic
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-- curve, is positioned in space with a right-handed
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-- coordinate system (gp_Ax2 object) where:
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-- - the origin is the center of the circle, and
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-- - the origin, "X Direction" and "Y Direction" define the
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-- plane of the circle.
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-- This coordinate system is the local coordinate
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-- system of the circle.
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-- The "main Direction" of this coordinate system is the
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-- vector normal to the plane of the circle. The axis, of
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-- which the origin and unit vector are respectively the
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-- origin and "main Direction" of the local coordinate
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-- system, is termed the "Axis" or "main Axis" of the circle.
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-- The "main Direction" of the local coordinate system
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-- gives an explicit orientation to the circle (definition of
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-- the trigonometric sense), determining the direction in
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-- which the parameter increases along the circle.
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-- The Geom_Circle circle is parameterized by an angle:
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-- P(U) = O + R*Cos(U)*XDir + R*Sin(U)*YDir, where:
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-- - P is the point of parameter U,
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-- - O, XDir and YDir are respectively the origin, "X
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-- Direction" and "Y Direction" of its local coordinate system,
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-- - R is the radius of the circle.
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-- The "X Axis" of the local coordinate system therefore
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-- defines the origin of the parameter of the circle. The
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-- parameter is the angle with this "X Direction".
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-- A circle is a closed and periodic curve. The period is
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-- 2.*Pi and the parameter range is [ 0, 2.*Pi [.
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uses Ax2 from gp,
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Circ from gp,
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Pnt from gp,
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Trsf from gp,
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Vec from gp,
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Geometry from Geom
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raises ConstructionError from Standard,
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RangeError from Standard
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is
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Create (C : Circ) returns Circle;
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---Purpose : Constructs a circle by conversion of the gp_Circ circle C.
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Create (A2 : Ax2; Radius : Real) returns Circle
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---Purpose : Constructs a circle of radius Radius, where A2 locates the circle and
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-- defines its orientation in 3D space such that:
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-- - the center of the circle is the origin of A2,
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-- - the origin, "X Direction" and "Y Direction" of A2
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-- define the plane of the circle,
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-- - A2 is the local coordinate system of the circle.
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-- Note: It is possible to create a circle where Radius is equal to 0.0.
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raises ConstructionError;
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---Purpose : raised if Radius < 0.
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SetCirc (me : mutable; C : Circ)
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---Purpose :
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-- Set <me> so that <me> has the same geometric properties as C.
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is static;
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SetRadius (me : mutable; R : Real)
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---Purpose: Assigns the value R to the radius of this circle.
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-- Note: it is possible to have a circle with a radius equal to 0.0.
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-- Exceptions - Standard_ConstructionError if R is negative.
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raises ConstructionError
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is static;
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Circ (me) returns Circ
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---Purpose :
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-- returns the non transient circle from gp with the same
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-- geometric properties as <me>.
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is static;
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Radius(me) returns Real
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is static;
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---Purpose: Returns the radius of this circle.
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ReversedParameter(me; U : Real) returns Real is redefined static;
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---Purpose: Computes the parameter on the reversed circle for
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-- the point of parameter U on this circle.
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-- For a circle, the returned value is: 2.*Pi - U.
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Eccentricity (me) returns Real is redefined static;
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---Purpose : Returns the eccentricity e = 0 for a circle.
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FirstParameter (me) returns Real is redefined static;
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---Purpose : Returns the value of the first parameter of this
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-- circle. This is 0.0, which gives the start point of this circle, or
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-- The start point and end point of a circle are coincident.
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LastParameter (me) returns Real is redefined static;
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---Purpose : Returns the value of the last parameter of this
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-- circle. This is 2.*Pi, which gives the end point of this circle.
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-- The start point and end point of a circle are coincident.
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IsClosed (me) returns Boolean is redefined static;
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---Purpose : returns True.
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IsPeriodic (me) returns Boolean is redefined static;
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---Purpose : returns True.
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D0(me; U : Real; P : out Pnt) is redefined static;
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---Purpose: Returns in P the point of parameter U.
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-- P = C + R * Cos (U) * XDir + R * Sin (U) * YDir
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-- where C is the center of the circle , XDir the XDirection and
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-- YDir the YDirection of the circle's local coordinate system.
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D1 (me; U : Real; P : out Pnt; V1 : out Vec) is redefined static;
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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 Pnt; V1, V2 : out Vec) is redefined static;
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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.
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D3 (me; U : Real; P : out Pnt; V1, V2, V3 : out Vec) is redefined static;
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---Purpose :
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-- Returns the point P of parameter u, the first second and third
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-- derivatives V1 V2 and V3.
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DN (me; U : Real; N : Integer) returns Vec
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---Purpose :
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-- The returned vector gives the value of the derivative for the
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-- order of derivation N.
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raises RangeError
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is redefined static;
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---Purpose : Raised if N < 1.
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Transform (me : mutable; T : Trsf) is redefined static;
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---Purpose: Applies the transformation T to this circle.
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Copy (me) returns like me
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is redefined static;
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---Purpose: Creates a new object which is a copy of this circle.
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fields
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radius : Real;
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end;
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