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-- File: GeomAPI.cdl
-- Created: Thu Mar 17 10:00:11 1994
-- Author: Bruno DUMORTIER
-- <dub@fuegox>
---Copyright: Matra Datavision 1994
package GeomAPI
---Purpose: The GeomAPI package provides an Application
-- Programming Interface for the Geometry.
--
-- The API is a set of classes and methods aiming to
-- provide :
--
-- * High level and simple calls for the most common
-- operations.
--
-- * Keeping an access on the low-level
-- implementation of high-level calls.
--
--
-- The API provides classes to call the algorithmes
-- of the Geometry
--
-- * The constructors of the classes provides the
-- different constructions methods.
--
-- * The class keeps as fields the different tools
-- used by the algorithmes
--
-- * The class provides a casting method to get
-- automatically the result with a function-like
-- call.
--
-- For example to evaluate the distance <D> between a
-- point <P> and a curve <C>, one can writes :
--
-- D = GeomAPI_ProjectPointOnCurve(P,C);
--
-- or
--
-- GeomAPI_ProjectPointOnCurve PonC(P,C);
-- D = PonC.LowerDistance();
--
uses
Geom,
Geom2d,
gp,
TColgp,
TColStd,
GeomAdaptor,
GeomInt,
IntCurveSurface,
Extrema,
GeomAbs,
Quantity,
StdFail,
Approx
is
------------------------------------------------------------------
-- Those classes provide algo to evaluate the distance between
-- points curves and surfaces.
------------------------------------------------------------------
class ProjectPointOnCurve;
class ProjectPointOnSurf;
class ExtremaCurveCurve;
class ExtremaCurveSurface;
class ExtremaSurfaceSurface;
------------------------------------------------------------------
-- Those classes provide algo to evaluate a curve or a surface
-- passing through
-- an array of points.
------------------------------------------------------------------
--- Approximation:
--
class PointsToBSpline;
---Purpose: To fit a curve.
class PointsToBSplineSurface;
---Purpose: To fit a surface.
--- Interpolation:
--
class Interpolate;
------------------------------------------------------------------
-- Those classes provide algo to intersect two surfaces
-- and to intersect a curve and a surface
------------------------------------------------------------------
class IntSS;
---Purpose: To intersect two surfaces.
class IntCS;
---Purpose: To intersect a curve and a surface.
------------------------------------------------------------------
-- Those methods are used to switch 3d and 2d curves
------------------------------------------------------------------
To2d(C : Curve from Geom; P : Pln from gp) returns Curve from Geom2d;
---Purpose: This function builds (in the
-- parametric space of the plane P) a 2D curve equivalent to the 3D curve
-- C. The 3D curve C is considered to be located in the plane P.
-- Warning
-- The 3D curve C must be of one of the following types:
-- - a line
-- - a circle
-- - an ellipse
-- - a hyperbola
-- - a parabola
-- - a Bezier curve
-- - a BSpline curve
-- Exceptions Standard_NoSuchObject if C is not a defined type curve.
To3d(C : Curve from Geom2d; P : Pln from gp) returns Curve from Geom;
---Purpose: Builds a 3D curve equivalent to the 2D curve C
-- described in the parametric space defined by the local
-- coordinate system of plane P.
-- The resulting 3D curve is of the same nature as that of the curve C.
end GeomAPI;
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