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-- File: ProjLib_CompProjectedCurve.cdl
-- Created: Mon Sep 22 12:46:50 1997
-- Author: Roman BORISOV
-- <rbv@pronox.nnov.matra-dtv.fr>
---Copyright: Matra Datavision 1997
class CompProjectedCurve from ProjLib inherits Curve2d from Adaptor2d
uses
HSurface from Adaptor3d,
HCurve from Adaptor3d,
HCurve2d from Adaptor2d,
Pnt2d from gp,
Vec2d from gp,
Pnt from gp,
Array1OfReal from TColStd,
HSequenceOfHSequenceOfPnt from ProjLib,
Shape from GeomAbs,
HArray1OfBoolean from TColStd,
HArray1OfReal from TColStd,
CurveType from GeomAbs
raises
OutOfRange from Standard,
NoSuchObject from Standard,
DomainError from Standard,
NotImplemented from Standard
is
Create returns CompProjectedCurve;
Create(S : HSurface from Adaptor3d;
C : HCurve from Adaptor3d;
TolU, TolV: Real from Standard)
returns CompProjectedCurve;
---Purpose: try to find all solutions
Create(S : HSurface from Adaptor3d;
C : HCurve from Adaptor3d;
TolU, TolV, MaxDist: Real from Standard)
returns CompProjectedCurve;
---Purpose: this constructor tries to optimize the search using the
-- assamption that maximum distance between surface and curve less or
-- equal then MaxDist.
-- if MaxDist < 0 then algorithm works as above.
Init(me: in out)
---Purpose : computes a set of projected point and determine the
-- continuous parts of the projected curves. The points
-- corresponding to a projection on the bounds of the surface are
-- included in this set of points.
is static;
Load(me : in out;S : HSurface from Adaptor3d)
---Purpose: Changes the surface.
is static;
Load(me : in out; C : HCurve from Adaptor3d)
---Purpose: Changes the curve.
is static;
GetSurface(me) returns HSurface from Adaptor3d
---C++: return const &
is static;
GetCurve(me) returns HCurve from Adaptor3d
---C++: return const &
is static;
GetTolerance(me; TolU, TolV: in out Real)
is static;
--
-- Global methods - Apply to the whole curve.
--
NbCurves (me) returns Integer from Standard
---Purpose: returns the number of continuous part of the projected curve
is static;
Bounds(me; Index : in Integer from Standard;
Udeb,Ufin : out Real from Standard)
--- Purpose : returns the bounds of the continuous part corresponding to Index
raises NoSuchObject
is static;
IsSinglePnt(me; Index: Integer; P : out Pnt2d from gp ) returns Boolean from Standard
--- Purpose : returns True if part of projection with number Index is a single point and writes its coordinats in P
raises NoSuchObject
is static;
IsUIso(me; Index: Integer; U : out Real from Standard) returns Boolean from Standard
--- Purpose : returns True if part of projection with number Index is an u-isoparametric curve of input surface
raises NoSuchObject
is static;
IsVIso(me; Index: Integer; V : out Real from Standard) returns Boolean from Standard
--- Purpose : returns True if part of projection with number Index is an v-isoparametric curve of input surface
raises NoSuchObject
is static;
Value(me; U : Real from Standard) returns Pnt2d from gp
--- Purpose : Computes the point of parameter U on the curve.
is redefined static;
D0 (me; U : Real from Standard; P : out Pnt2d from gp)
--- Purpose : Computes the point of parameter U on the curve.
raises DomainError
is redefined static;
D1 (me; U : Real from Standard; P : out Pnt2d from gp ; V : out Vec2d from gp)
--- Purpose : Computes the point of parameter U on the curve with its
-- first derivative.
raises
DomainError from Standard
--- Purpose : Raised if the continuity of the current interval
-- is not C1.
is redefined static;
D2 (me; U : Real from Standard; P : out Pnt2d from gp; V1, V2 : out Vec2d from gp)
--- Purpose :
-- Returns the point P of parameter U, the first and second
-- derivatives V1 and V2.
raises
DomainError from Standard
--- Purpose : Raised if the continuity of the current interval
-- is not C2.
is redefined static;
DN (me; U : Real; N : Integer) returns Vec2d from gp
--- Purpose :
-- The returned vector gives the value of the derivative for the
-- order of derivation N.
raises
OutOfRange from Standard,
--- Purpose : Raised if N < 1.
NotImplemented from Standard
--- Purpose : Raised if N > 2.
is redefined static;
FirstParameter(me) returns Real
---Purpose: Returns the first parameter of the curve C
-- which has a projection on S.
is redefined static;
LastParameter(me) returns Real
---Purpose: Returns the last parameter of the curve C
-- which has a projection on S.
is redefined static;
NbIntervals(me; S : Shape from GeomAbs) returns Integer
---Purpose: Returns the number of intervals which define
-- an S continuous part of the projected curve
is redefined static;
Trim(me;FirstParam,LastParam,Tol : Real) returns HCurve2d from Adaptor2d
---Purpose: Returns a curve equivalent of <me> between
-- parameters <First> and <Last>. <Tol> is used to
-- test for 2d points confusion.
raises
OutOfRange from Standard
---Purpose: If <First> >= <Last>
is redefined static;
Intervals(me; T : in out Array1OfReal from TColStd;
S : Shape from GeomAbs)
---Purpose: Returns the parameters corresponding to
-- S discontinuities.
--
-- The array must provide enough room to accomodate
-- for the parameters. i.e. T.Length() > NbIntervals()
raises
OutOfRange from Standard
is redefined static;
BuildIntervals(me; S : Shape from GeomAbs)
raises
OutOfRange from Standard
is private;
MaxDistance(me; Index: Integer)
---Purpose: returns the maximum distance between
-- curve to project and surface
returns Real
raises NoSuchObject;
-- Methods for debugging
GetSequence(me) returns HSequenceOfHSequenceOfPnt from ProjLib
---C++: return const &
is static;
GetType(me) returns CurveType from GeomAbs
---Purpose: Returns the type of the curve in the current
-- interval : Line, Circle, Ellipse, Hyperbola,
-- Parabola, BezierCurve, BSplineCurve, OtherCurve.
is redefined static;
fields
mySurface : HSurface from Adaptor3d;
myCurve : HCurve from Adaptor3d;
myNbCurves : Integer from Standard;
mySequence : HSequenceOfHSequenceOfPnt from ProjLib;
myTolU : Real from Standard;
myTolV : Real from Standard;
myMaxDist : Real from Standard;
myUIso : HArray1OfBoolean from TColStd;
myVIso : HArray1OfBoolean from TColStd;
mySnglPnts : HArray1OfBoolean from TColStd;
myMaxDistance : HArray1OfReal from TColStd;
end CompProjectedCurve;
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