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