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License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
376 lines
14 KiB
Plaintext
376 lines
14 KiB
Plaintext
-- Created on: 1996-08-09
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-- Created by: Herve LOUESSARD
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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 by Jerome LEMONIER
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--Wed Aug 13 10:46
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--New constructor and new method ComputeAnalysis
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class SurfaceContinuity from LocalAnalysis
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---Purpose:
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-- This class gives tools to check local continuity C0
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-- C1 C2 G1 G2 between two points situated on two surfaces
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uses
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Shape from GeomAbs,
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Boolean, Integer, Real from Standard,
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Surface from Geom,
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SLProps from GeomLProp,
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Curve from Geom,
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Curve from Geom2d,
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StatusErrorType from LocalAnalysis
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raises
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NotDone from StdFail
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is
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Create( Surf1: Surface from Geom; u1, v1: Real from Standard;
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Surf2: Surface from Geom; u2, v2: Real from Standard;
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Order: Shape from GeomAbs;
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EpsNul: Real from Standard= 0.001;
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EpsC0 : Real from Standard= 0.001;
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EpsC1 : Real from Standard= 0.001;
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EpsC2 : Real from Standard= 0.001;
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EpsG1 : Real from Standard= 0.001;
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Percent :Real from Standard= 0.01;
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Maxlen: Real from Standard =10000)
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---Purpose:
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-- -u1,v1 are the parameters of the point on Surf1
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-- -u2,v2 are the parameters of the point on Surf2
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-- -Order is the required continuity:
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-- GeomAbs_C0 GeomAbs_C1 GeomAbs_C2
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-- GeomAbs_G1 GeomAbs_G2
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--
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-- -EpsNul is used to detect a a vector with nul
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-- magnitude
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--
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-- -EpsC0 is used for C0 continuity to confuse two
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-- points (in mm)
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--
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-- -EpsC1 is an angular tolerance in radians used
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-- for C1 continuity to compare the angle between
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-- the first derivatives
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--
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-- -EpsC2 is an angular tolerance in radians used
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-- for C2 continuity to compare the angle between
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-- the second derivatives
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--
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-- -EpsG1 is an angular tolerance in radians used
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-- for G1 continuity to compare the angle between
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-- the normals
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--
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--
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-- -Percent : percentage of curvature variation (unitless)
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-- used for G2 continuity
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--
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-- - Maxlen is the maximum length of Surf1 or Surf2 in
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-- meters used to detect null curvature (in mm)
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--
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--
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--
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-- the constructor computes the quantities which are
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-- necessary to check the continuity in the following cases:
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--
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-- case C0
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-- --------
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-- - the distance between P1 and P2 with P1=Surf (u1,v1) and
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-- P2=Surfv2(u2,v2)
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--
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--
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-- case C1
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-- -------
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--
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-- - the angle between the first derivatives in u :
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--
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-- dSurf1(u1,v1) dSurf2(u2,v2)
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-- ----------- and ---------
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-- du du
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--
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-- the angle value is between 0 and PI/2
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--
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-- - the angle between the first derivatives in v :
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--
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-- dSurf1(u1,v1) dSurf2(u2,v2)
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-- -------- and ---------
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-- dv dv
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--
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-- - the ratio between the magnitudes of the first derivatives in u
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-- - the ratio between the magnitudes of the first derivatives in v
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--
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-- the angle value is between 0 and pi/2
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--
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-- case C2
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-- -------
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-- - the angle between the second derivatives in u
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-- 2 2
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-- d Surf1(u1,v1) d Surf2(u2,v2)
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-- ---------- ----------
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-- 2 2
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-- d u d u
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--
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-- - the ratio between the magnitudes of the second derivatives in u
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-- - the ratio between the magnitudes of the second derivatives in v
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--
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-- the angle value is between 0 and PI/2
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--
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-- case G1
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-- -------
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-- -the angle between the normals at each point
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-- the angle value is between 0 and PI/2
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--
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-- case G2
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-- -------
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-- - the maximum normal curvature gap between the two
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-- points
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--
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returns SurfaceContinuity from LocalAnalysis;
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Create( curv1: Curve from Geom2d; curv2 : Curve from Geom2d;
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U: Real from Standard;Surf1: Surface from Geom ;
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Surf2: Surface from Geom;
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Order: Shape from GeomAbs;
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EpsNul: Real from Standard= 0.001;
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EpsC0 : Real from Standard= 0.001;
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EpsC1 : Real from Standard= 0.001;
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EpsC2 : Real from Standard= 0.001;
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EpsG1 : Real from Standard= 0.001;
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Percent :Real from Standard= 0.01;
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Maxlen: Real from Standard =10000)
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-- - the first point is located by surf1(curv1(U))
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-- - the second point is located by surf2(curv2(U))
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--
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-- - Order is the required continuity:
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-- GeomAbs_C0 GeomAbs_C1 GeomAbs_C2
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-- GeomAbs_G1 GeomAbs_G2
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--
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-- (see the above constructor for the tolerances)
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returns SurfaceContinuity from LocalAnalysis;
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Create( EpsNul: Real from Standard= 0.001;
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EpsC0 : Real from Standard= 0.001;
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EpsC1 : Real from Standard= 0.001;
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EpsC2 : Real from Standard= 0.001;
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EpsG1 : Real from Standard= 0.001;
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Percent :Real from Standard= 0.01;
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Maxlen: Real from Standard =10000)
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returns SurfaceContinuity from LocalAnalysis;
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---Purpose:
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-- This constructor is used when we want to compute many analysis.
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-- After we use the method ComputeAnalysis
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ComputeAnalysis( me:in out; Surf1, Surf2: in out SLProps from GeomLProp;
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Order: Shape from GeomAbs);
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-- This method computes the analysis for two SLProps which contains
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-- the properties of the two surfaces and the two points
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-- Order is the required continuity:
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-- GeomAbs_C0 GeomAbs_C1 GeomAbs_C2
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-- GeomAbs_G1 GeomAbs_G2
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IsDone(me) returns Boolean from Standard;
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-- returns true if there is no problem in the constructor
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ContinuityStatus(me) returns Shape from GeomAbs raises NotDone ;
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-- returns the continuity required in the constructor
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StatusError(me) returns StatusErrorType from LocalAnalysis;
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-- returns the status of error :
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-- NullFirstDerivative : one of the first derivatives is null
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-- NullSecondDerivative: one of the second derivatives is null
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-- NormalNotDefined: one (or both) normal is undefined
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-- CurvatureNotDefined: one of the mean curvatures is undefined
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-- The following functions return the quantities
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-- which are necessary to check continuity
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C0Value(me) returns Real from Standard raises NotDone ;
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-- returns the distance between P1 and P2 with P1=Surf (u1,v1) and
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-- P2=Surfv2(u2,v2)
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C1UAngle(me) returns Real from Standard raises NotDone ;
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-- returns the angle between the first derivatives in u :
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--
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-- dSurf1(u1,v1) dSurf2(u2,v2)
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-- -------- and ---------
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-- du du
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--
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-- the angle value is between 0 and PI/2
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C1URatio (me) returns Real from Standard raises NotDone ;
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-- returns the ratio between the magnitudes of the first
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-- derivatives in u
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--
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--
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C1VAngle(me) returns Real from Standard raises NotDone ;
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-- returns the angle between the first derivatives in v:
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--
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-- dSurf1(u1,v1) dSurf2(u2,v2)
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-- -------- and ---------
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-- dv dv
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--
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-- the angle value is between 0 and PI/2
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C1VRatio(me) returns Real from Standard raises NotDone ;
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-- returns the ratio between the magnitudes of the first
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-- derivatives in v
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C2UAngle(me) returns Real from Standard raises NotDone ;
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-- returns the angle between the second derivatives in u
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-- 2 2
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-- d Surf1(u1,v1) d Surf2(u2,v2)
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-- ---------- and ----------
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-- 2 2
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-- du du
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C2URatio(me) returns Real from Standard raises NotDone ;
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-- returns the ratio between the magnitudes of the second
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-- derivatives in u
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C2VAngle(me) returns Real from Standard raises NotDone ;
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-- returns the angle between the second derivatives in v
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-- 2 2
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-- d Surf1(u1,v1) d Surf2(u2,v2)
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-- ---------- and ----------
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-- 2 2
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-- dv dv
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--
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-- the angle value is between 0 and PI/2
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--
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C2VRatio(me) returns Real from Standard raises NotDone ;
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-- returns the ratio between the magnitudes of the first
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-- derivatives in v
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G1Angle(me) returns Real from Standard raises NotDone ;
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--returns the angle between the normals at the two points
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--
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-- the angle value is between 0 and PI/2
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G2CurvatureGap (me) returns Real from Standard raises NotDone ;
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-- returns the maximum normal curvature gap
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-- the following functions check the local continuity and return
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-- true if the required continuity is satisfied :
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IsC0(me) returns Boolean from Standard
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raises NotDone ;
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-- returns true if the local continuity is C0 that is :
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-- ContC0(me) < EpsC0
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IsC1(me) returns Boolean from Standard
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raises NotDone ;
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-- returns true if the local continuity is C1 that is :
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-- C0Value (me) < EpsC0 ,
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-- C1UAngle (me) < EpsC1
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-- C1VAngle (me) < EpsC1
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IsC2(me) returns Boolean from Standard
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raises NotDone ;
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-- returns true if the local continuity is C2 that is :
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-- C0Value (me) < EpsC0,
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-- C1UAngle(me) < EpsC1
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-- C1VAngle(me) < EpsC1
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-- C2UAngle(me) < EpsC2
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-- C2VAngle(me) < EpsC2
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-- C2URatio(me) is the square of C1URatio up to a tolerance
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-- C2VRatio(me) is the square of C1VRatio up to a tolerance
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--
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IsG1(me) returns Boolean from Standard
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raises NotDone ;
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-- returns true is the local continuity is G1 that is
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-- C0Value(me) < EpsC0
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-- G1Angle(me) < EpsG1
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--
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IsG2(me) returns Boolean from Standard
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raises NotDone ;
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-- returns true is the local continuity is G2
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-- The following function are private and used in the constructor
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SurfC0(me:in out; Surf1, Surf2: SLProps from GeomLProp) is private ;
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SurfC1(me:in out; Surf1, Surf2:in out SLProps from GeomLProp)is private ;
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SurfC2(me:in out; Surf1, Surf2:in out SLProps from GeomLProp)is private;
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SurfG1(me:in out; Surf1, Surf2:in out SLProps from GeomLProp) is private;
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SurfG2(me:in out; Surf1, Surf2:in out SLProps from GeomLProp) is private;
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fields
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myContC0 : Real from Standard;
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myContC1U : Real from Standard;
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myContC1V : Real from Standard;
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myContC2U : Real from Standard;
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myContC2V : Real from Standard;
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myContG1 : Real from Standard;
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myLambda1U : Real from Standard;
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myLambda2U : Real from Standard;
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myLambda1V : Real from Standard;
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myLambda2V : Real from Standard;
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myETA1 : Real from Standard;
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myETA2 : Real from Standard;
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myETA : Real from Standard;
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myZETA1 : Real from Standard;
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myZETA2 : Real from Standard;
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myZETA : Real from Standard;
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myAlpha : Real from Standard;
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myTypeCont : Shape from GeomAbs;
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myepsC0 : Real from Standard;
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myepsnul : Real from Standard;
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myepsC1 : Real from Standard;
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myepsC2 : Real from Standard;
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myepsG1 : Real from Standard;
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myperce : Real from Standard;
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mymaxlen : Real from Standard;
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myGap : Real from Standard;
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myIsDone : Boolean from Standard;
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myErrorStatus : StatusErrorType from LocalAnalysis;
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end SurfaceContinuity;
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