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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.
313 lines
11 KiB
Plaintext
313 lines
11 KiB
Plaintext
-- Created on: 1996-11-21
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-- Created by: Joelle CHAUVET
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-- Copyright (c) 1996-1999 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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-- Modified: Wed Mar 5 09:45:42 1997
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-- by: Joelle CHAUVET
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-- G1134 : new methods RealBounds and Constraints
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class Surface from GeomPlate inherits Surface from Geom
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---Purpose:
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-- Describes the characteristics of plate surface objects
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-- returned by BuildPlateSurface::Surface. These can be
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-- used to verify the quality of the resulting surface before
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-- approximating it to a Geom_BSpline surface generated
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-- by MakeApprox. This proves necessary in cases where
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-- you want to use the resulting surface as the support for
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-- a shape. The algorithmically generated surface cannot
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-- fill this function as is, and as a result must be converted first.
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uses Pnt from gp,
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Vec from gp,
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Trsf from gp,
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GTrsf2d from gp,
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Shape from GeomAbs,
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Curve from Geom,
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Surface from Geom,
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Plate from Plate,
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Array2OfPnt2d from TColgp,
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Array2OfPnt from TColgp,
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SequenceOfXY from TColgp
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raises RangeError from Standard,
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NoSuchObject from Standard,
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UndefinedDerivative from Geom,
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UndefinedValue from Geom
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is
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Create ( Surfinit : Surface from Geom; Surfinter : Plate from Plate)
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returns Surface from GeomPlate ;
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UReverse (me : mutable)
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---Purpose :
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-- Reverses the U direction of parametrization of <me>.
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-- The bounds of the surface are not modified.
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;
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UReversedParameter (me; U : Real) returns Real
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---Purpose: Return the parameter on the Ureversed surface for
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-- the point of parameter U on <me>.
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--
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-- me->UReversed()->Value(me->UReversedParameter(U),V)
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--
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-- is the same point as
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--
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-- me->Value(U,V)
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;
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VReverse (me : mutable)
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---Purpose :
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-- Reverses the V direction of parametrization of <me>.
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-- The bounds of the surface are not modified.
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;
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VReversedParameter (me; V : Real) returns Real
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---Purpose: Return the parameter on the Vreversed surface for
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-- the point of parameter V on <me>.
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--
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-- me->VReversed()->Value(U,me->VReversedParameter(V))
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--
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-- is the same point as
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--
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-- me->Value(U,V)
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;
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TransformParameters(me; U,V : in out Real; T : Trsf from gp)
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---Purpose: Computes the parameters on the transformed surface for
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-- the transform of the point of parameters U,V on <me>.
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--
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-- me->Transformed(T)->Value(U',V')
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--
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-- is the same point as
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--
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-- me->Value(U,V).Transformed(T)
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--
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-- Where U',V' are the new values of U,V after calling
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--
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-- me->TranformParameters(U,V,T)
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--
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-- This methods does not change <U> and <V>
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--
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-- It can be redefined. For example on the Plane,
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-- Cylinder, Cone, Revolved and Extruded surfaces.
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is redefined;
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ParametricTransformation(me; T : Trsf from gp) returns GTrsf2d from gp
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---Purpose: Returns a 2d transformation used to find the new
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-- parameters of a point on the transformed surface.
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--
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-- me->Transformed(T)->Value(U',V')
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--
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-- is the same point as
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--
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-- me->Value(U,V).Transformed(T)
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--
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-- Where U',V' are obtained by transforming U,V with
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-- th 2d transformation returned by
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--
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-- me->ParametricTransformation(T)
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--
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-- This methods returns an identity transformation
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--
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-- It can be redefined. For example on the Plane,
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-- Cylinder, Cone, Revolved and Extruded surfaces.
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--
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is redefined;
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Bounds(me; U1, U2, V1, V2 : out Real)
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-- To get the parametric bounds of the surface.
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-- Returned values can be RealFirst or RealLast if the surface is
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-- infinite.
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;
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IsUClosed (me) returns Boolean
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---Purpose :
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-- Is the surface closed in the parametric direction U ?
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-- Returns True if for each parameter V the distance
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-- between the point P (UFirst, V) and P (ULast, V) is
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-- lower or equal to Resolution from gp. UFirst and ULast
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-- are the parametric bounds in the U direction.
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;
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IsVClosed (me) returns Boolean
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---Purpose :
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-- Is the surface closed in the parametric direction V ?
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-- Returns True if for each parameter U the distance
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-- between the point P (U, VFirst) and P (U, VLast) is
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-- lower or equal to Resolution from gp. VFirst and VLast
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-- are the parametric bounds in the V direction.
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;
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IsUPeriodic (me) returns Boolean
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---Purpose :
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-- Is the parametrization of a surface periodic in the
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-- direction U ?
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-- It is possible only if the surface is closed in this
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-- parametric direction and if the following relation is
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-- satisfied :
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-- for each parameter V the distance between the point
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-- P (U, V) and the point P (U + T, V) is lower or equal
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-- to Resolution from package gp. T is the parametric period
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-- and must be a constant.
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;
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UPeriod (me) returns Real from Standard
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---Purpose: returns the Uperiod.
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raises
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NoSuchObject from Standard
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---Purpose: raises if the surface is not uperiodic.
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is redefined;
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IsVPeriodic (me) returns Boolean
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---Purpose :
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-- Is the parametrization of a surface periodic in the
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-- direction U ?
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-- It is possible only if the surface is closed in this
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-- parametric direction and if the following relation is
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-- satisfied :
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-- for each parameter V the distance between the point
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-- P (U, V) and the point P (U + T, V) is lower or equal
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-- to Resolution from package gp. T is the parametric period
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-- and must be a constant.
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;
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VPeriod (me) returns Real from Standard
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---Purpose: returns the Vperiod.
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raises
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NoSuchObject from Standard
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---Purpose: raises if the surface is not vperiodic.
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is redefined;
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UIso (me; U : Real) returns Curve
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---Purpose : Computes the U isoparametric curve.
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;
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VIso (me; V : Real) returns Curve
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---Purpose : Computes the V isoparametric curve.
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;
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Continuity (me) returns Shape from GeomAbs
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---Purpose :
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-- Global Continuity of the surface in direction U and V :
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-- C0 : only geometric continuity,
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-- C1 : continuity of the first derivative all along the surface,
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-- C2 : continuity of the second derivative all along the surface,
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-- C3 : continuity of the third derivative all along the surface,
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-- G1 : tangency continuity all along the surface,
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-- G2 : curvature continuity all along the surface,
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-- CN : the order of continuity is infinite.
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--- Example :
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-- If the surface is C1 in the V parametric direction and C2
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-- in the U parametric direction Shape = C1.
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;
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IsCNu (me; N : Integer) returns Boolean
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---Purpose :
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--- Returns the order of continuity of the surface in the
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-- U parametric direction.
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raises RangeError
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---Purpose : Raised if N < 0.
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;
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IsCNv (me; N : Integer) returns Boolean
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---Purpose :
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--- Returns the order of continuity of the surface in the
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-- V parametric direction.
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raises RangeError
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---Purpose : Raised if N < 0.
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;
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D0 (me; U, V : Real; P : out Pnt)
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---Purpose :
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-- Computes the point of parameter U,V on the surface.
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raises UndefinedValue
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---Purpose :
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-- Raised only for an "OffsetSurface" if it is not possible to
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-- compute the current point.
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;
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D1 (me; U, V : Real; P : out Pnt; D1U, D1V : out Vec)
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---Purpose :
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-- Computes the point P and the first derivatives in the
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-- directions U and V at this point.
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raises UndefinedDerivative
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---Purpose : Raised if the continuity of the surface is not C1.
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;
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D2 (me; U, V : Real; P : out Pnt; D1U, D1V, D2U, D2V, D2UV : out Vec)
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---Purpose :
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-- Computes the point P, the first and the second derivatives in
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-- the directions U and V at this point.
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raises UndefinedDerivative
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---Purpose : Raised if the continuity of the surface is not C2.
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;
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D3 (me; U, V : Real; P : out Pnt;
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D1U, D1V, D2U, D2V, D2UV, D3U, D3V, D3UUV, D3UVV :out Vec)
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---Purpose :
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-- Computes the point P, the first,the second and the third
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-- derivatives in the directions U and V at this point.
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raises UndefinedDerivative
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---Purpose : Raised if the continuity of the surface is not C2.
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;
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DN (me; U, V : Real; Nu, Nv : Integer) returns Vec
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---Purpose ;
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-- Computes the derivative of order Nu in the direction U and Nv
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-- in the direction V at the point P(U, V).
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raises UndefinedDerivative,
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---Purpose :
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-- Raised if the continuity of the surface is not CNu in the U
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-- direction or not CNv in the V direction.
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RangeError
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---Purpose : Raised if Nu + Nv < 1 or Nu < 0 or Nv < 0.
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;
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Copy (me) returns like me;
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Transform (me : mutable; T : Trsf) ;
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---Purpose :
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-- Transformation of a geometric object. This tansformation
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-- can be a translation, a rotation, a symmetry, a scaling
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-- or a complex transformation obtained by combination of
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-- the previous elementaries transformations.
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-- (see class Transformation of the package Geom).
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CallSurfinit (me) returns Surface from Geom;
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SetBounds (me : mutable ; Umin,Umax,Vmin,Vmax : in Real from Standard );
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RealBounds(me; U1, U2, V1, V2 : out Real);
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-- To get the real parametric bounds of the surface.
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Constraints(me; Seq : out SequenceOfXY);
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-- To get the 2d constraints used by Plate
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fields
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mySurfinter : Plate from Plate;
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mySurfinit : Surface from Geom;
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myUmin,myUmax,myVmin,myVmax : Real from Standard;
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end;
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