[occt.git] / src / IGESConvGeom / IGESConvGeom.cdl

-- File:	IGESConvGeom.cdl
-- Created:	Thu Sep  1 15:31:13 1994
-- Author:	Christian CAILLET
--		<cky@anion>
---Copyright:	 Matra Datavision 1994


package IGESConvGeom

    ---Purpose : This package is intended to gather geometric conversion which
    --           are not immediate but can be used for several purposes :
    --           mainly, standard conversion to and from CasCade geometric and
    --           topologic data, and adaptations of IGES files as required
    --           (as replacing Spline entities to BSpline equivalents).

uses Standard, gp, TColgp, Geom, Geom2d, IGESGeom

is

    class GeomBuilder;
    ---Purpose : basic tool to build curves from IGESGeom (arrays of points,
    --           Transformations, evaluation of points in a datum)

    SplineCurveFromIGES
    	(igesent : SplineCurve from IGESGeom;
	 epscoef, epsgeom : Real;
	 result  : out mutable BSplineCurve from Geom)
    returns Integer;
    ---Purpose : Converts a SplineCurve from IGES to a BSplineCurve from CasCade
    --           <epscoef> gives tolerance to consider coefficient to be nul
    --           <epsgeom> gives tolerance to consider poles to be equal
    --           The returned value is a status with these possible values :
    --           - 0  OK, done
    --           - 1  the result is not guaranteed to be C0 (with <epsgeom>)
    --           - 2  SplineType not processed (allowed : max 3)
    --                (no result produced)
    --           - 3  error during creation of control points
    --                (no result produced)
    --           - 4  polynomial equation is not correct (no result produced)
    --           - 5  less than one segment (no result produced)

    IncreaseCurveContinuity
    	(curve      : mutable BSplineCurve from Geom;
	 epsgeom    : Real;
	 continuity : Integer = 2)  returns Integer;
    ---Purpose : Tries to increase curve continuity with tolerance <epsgeom>
    --           <continuity> is the new desired continuity, can be 1 or 2
    --           (more than 2 is considered as 2).
    --           Returns the new maximum continuity obtained on all knots.
    --           Remark that, for instance with <continuity> = 2, even if not
    --           all the knots can be passed to C2, all knots which can be are.
    
    IncreaseCurveContinuity
    	(curve      : mutable BSplineCurve from Geom2d;
	 epsgeom    : Real;
	 continuity : Integer = 2)  returns Integer;

    SplineSurfaceFromIGES
    	(igesent : SplineSurface from IGESGeom;
	 epscoef, epsgeom : Real;
	 result  : out mutable BSplineSurface from Geom)
    returns Integer;
    ---Purpose : Converts a SplineSurface from IGES to a BSplineSurface from CasCade
    --           <epscoef> gives tolerance to consider coefficient to be nul
    --           <epsgeom> gives tolerance to consider poles to be equal
    --           The returned value is a status with these possible values :
    --           - 0  OK, done
    --           - 1  the result is not guaranteed to be C0 (with <epsgeom>)
    --           - 2  degree is not compatible with code boundary type
    --                (warning) but C0 is OK
    --           - 3  idem but C0 is not guaranteed (warning)
    --           - 4  degree has been determined to be nul, either in U or V
    --                (no result produced)
    --           - 5  less than one segment in U or V (no result produced)

    IncreaseSurfaceContinuity
    	(surface      : mutable BSplineSurface from Geom;
	 epsgeom    : Real;
	 continuity : Integer = 2)  returns Integer;
    ---Purpose : Tries to increase Surface continuity with tolerance <epsgeom>
    --           <continuity> is the new desired continuity, can be 1 or 2
    --           (more than 2 is considered as 2).
    --           Returns the new maximum continuity obtained on all knots.
    --           Remark that, for instance with <continuity> = 2, even if not
    --           all the knots can be passed to C2, all knots which can be are.

end IGESConvGeom;
Commit	Line	Data
7fd59977	1	-- File: IGESConvGeom.cdl
	2	-- Created: Thu Sep 1 15:31:13 1994
	3	-- Author: Christian CAILLET
	4	-- <cky@anion>
	5	---Copyright: Matra Datavision 1994
	6
	7
	8	package IGESConvGeom
	9
	10	---Purpose : This package is intended to gather geometric conversion which
	11	-- are not immediate but can be used for several purposes :
	12	-- mainly, standard conversion to and from CasCade geometric and
	13	-- topologic data, and adaptations of IGES files as required
	14	-- (as replacing Spline entities to BSpline equivalents).
	15
	16	uses Standard, gp, TColgp, Geom, Geom2d, IGESGeom
	17
	18	is
	19
	20	class GeomBuilder;
	21	---Purpose : basic tool to build curves from IGESGeom (arrays of points,
	22	-- Transformations, evaluation of points in a datum)
	23
	24	SplineCurveFromIGES
	25	(igesent : SplineCurve from IGESGeom;
	26	epscoef, epsgeom : Real;
	27	result : out mutable BSplineCurve from Geom)
	28	returns Integer;
	29	---Purpose : Converts a SplineCurve from IGES to a BSplineCurve from CasCade
	30	-- <epscoef> gives tolerance to consider coefficient to be nul
	31	-- <epsgeom> gives tolerance to consider poles to be equal
	32	-- The returned value is a status with these possible values :
	33	-- - 0 OK, done
	34	-- - 1 the result is not guaranteed to be C0 (with <epsgeom>)
	35	-- - 2 SplineType not processed (allowed : max 3)
	36	-- (no result produced)
	37	-- - 3 error during creation of control points
	38	-- (no result produced)
	39	-- - 4 polynomial equation is not correct (no result produced)
	40	-- - 5 less than one segment (no result produced)
	41
	42	IncreaseCurveContinuity
	43	(curve : mutable BSplineCurve from Geom;
	44	epsgeom : Real;
	45	continuity : Integer = 2) returns Integer;
	46	---Purpose : Tries to increase curve continuity with tolerance <epsgeom>
	47	-- <continuity> is the new desired continuity, can be 1 or 2
	48	-- (more than 2 is considered as 2).
	49	-- Returns the new maximum continuity obtained on all knots.
	50	-- Remark that, for instance with <continuity> = 2, even if not
	51	-- all the knots can be passed to C2, all knots which can be are.
	52
	53	IncreaseCurveContinuity
	54	(curve : mutable BSplineCurve from Geom2d;
	55	epsgeom : Real;
	56	continuity : Integer = 2) returns Integer;
	57
	58	SplineSurfaceFromIGES
	59	(igesent : SplineSurface from IGESGeom;
	60	epscoef, epsgeom : Real;
	61	result : out mutable BSplineSurface from Geom)
	62	returns Integer;
	63	---Purpose : Converts a SplineSurface from IGES to a BSplineSurface from CasCade
	64	-- <epscoef> gives tolerance to consider coefficient to be nul
65	-- <epsgeom> gives tolerance to consider poles to be equal
66	-- The returned value is a status with these possible values :
67	-- - 0 OK, done
68	-- - 1 the result is not guaranteed to be C0 (with <epsgeom>)
69	-- - 2 degree is not compatible with code boundary type
70	-- (warning) but C0 is OK
71	-- - 3 idem but C0 is not guaranteed (warning)
72	-- - 4 degree has been determined to be nul, either in U or V
73	-- (no result produced)
74	-- - 5 less than one segment in U or V (no result produced)
75
76	IncreaseSurfaceContinuity
77	(surface : mutable BSplineSurface from Geom;
78	epsgeom : Real;
79	continuity : Integer = 2) returns Integer;
80	---Purpose : Tries to increase Surface continuity with tolerance <epsgeom>
81	-- <continuity> is the new desired continuity, can be 1 or 2
82	-- (more than 2 is considered as 2).
83	-- Returns the new maximum continuity obtained on all knots.
84	-- Remark that, for instance with <continuity> = 2, even if not
85	-- all the knots can be passed to C2, all knots which can be are.
86
87	end IGESConvGeom;