/usr/include/oce/ElSLib.hxx is in liboce-foundation-dev 0.17.1-1.
This file is owned by root:root, with mode 0o644.
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// Please do not edit this file; modify original file instead.
// The copyright and license terms as defined for the original file apply to
// this header file considered to be the "object code" form of the original source.
#ifndef _ElSLib_HeaderFile
#define _ElSLib_HeaderFile
#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Macro.hxx>
#include <Standard_Real.hxx>
#include <gp_Pnt.hxx>
#include <Standard_Integer.hxx>
#include <gp_Vec.hxx>
class gp_Pnt;
class gp_Pln;
class gp_Cone;
class gp_Cylinder;
class gp_Sphere;
class gp_Torus;
class gp_Vec;
class gp_Ax3;
class gp_Lin;
class gp_Circ;
//! Provides functions for basic geometric computation on
//! elementary surfaces.
//! This includes:
//! - calculation of a point or derived vector on a surface
//! where the surface is provided by the gp package, or
//! defined in canonical form (as in the gp package), and
//! the point is defined with a parameter,
//! - evaluation of the parameters corresponding to a
//! point on an elementary surface from gp,
//! - calculation of isoparametric curves on an elementary
//! surface defined in canonical form (as in the gp package).
//! Notes:
//! - ElSLib stands for Elementary Surfaces Library.
//! - If the surfaces provided by the gp package are not
//! explicitly parameterized, they still have an implicit
//! parameterization, similar to that which they infer on
//! the equivalent Geom surfaces.
//! Note: ElSLib stands for Elementary Surfaces Library.
class ElSLib
{
public:
DEFINE_STANDARD_ALLOC
//! For elementary surfaces from the gp package (planes,
//! cones, cylinders, spheres and tori), computes the point
//! of parameters (U, V).
Standard_EXPORT static gp_Pnt Value (const Standard_Real U, const Standard_Real V, const gp_Pln& Pl) ;
static gp_Pnt Value (const Standard_Real U, const Standard_Real V, const gp_Cone& C) ;
static gp_Pnt Value (const Standard_Real U, const Standard_Real V, const gp_Cylinder& C) ;
static gp_Pnt Value (const Standard_Real U, const Standard_Real V, const gp_Sphere& S) ;
static gp_Pnt Value (const Standard_Real U, const Standard_Real V, const gp_Torus& T) ;
//! For elementary surfaces from the gp package (planes,
//! cones, cylinders, spheres and tori), computes the
//! derivative vector of order Nu and Nv in the u and v
//! parametric directions respectively, at the point of
//! parameters (U, V).
Standard_EXPORT static gp_Vec DN (const Standard_Real U, const Standard_Real V, const gp_Pln& Pl, const Standard_Integer Nu, const Standard_Integer Nv) ;
static gp_Vec DN (const Standard_Real U, const Standard_Real V, const gp_Cone& C, const Standard_Integer Nu, const Standard_Integer Nv) ;
static gp_Vec DN (const Standard_Real U, const Standard_Real V, const gp_Cylinder& C, const Standard_Integer Nu, const Standard_Integer Nv) ;
static gp_Vec DN (const Standard_Real U, const Standard_Real V, const gp_Sphere& S, const Standard_Integer Nu, const Standard_Integer Nv) ;
static gp_Vec DN (const Standard_Real U, const Standard_Real V, const gp_Torus& T, const Standard_Integer Nu, const Standard_Integer Nv) ;
//! For elementary surfaces from the gp package (planes,
//! cones, cylinders, spheres and tori), computes the point P
//! of parameters (U, V).inline
Standard_EXPORT static void D0 (const Standard_Real U, const Standard_Real V, const gp_Pln& Pl, gp_Pnt& P) ;
static void D0 (const Standard_Real U, const Standard_Real V, const gp_Cone& C, gp_Pnt& P) ;
static void D0 (const Standard_Real U, const Standard_Real V, const gp_Cylinder& C, gp_Pnt& P) ;
static void D0 (const Standard_Real U, const Standard_Real V, const gp_Sphere& S, gp_Pnt& P) ;
static void D0 (const Standard_Real U, const Standard_Real V, const gp_Torus& T, gp_Pnt& P) ;
//! For elementary surfaces from the gp package (planes,
//! cones, cylinders, spheres and tori), computes:
//! - the point P of parameters (U, V), and
//! - the first derivative vectors Vu and Vv at this point in
//! the u and v parametric directions respectively.
Standard_EXPORT static void D1 (const Standard_Real U, const Standard_Real V, const gp_Pln& Pl, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv) ;
static void D1 (const Standard_Real U, const Standard_Real V, const gp_Cone& C, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv) ;
static void D1 (const Standard_Real U, const Standard_Real V, const gp_Cylinder& C, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv) ;
static void D1 (const Standard_Real U, const Standard_Real V, const gp_Sphere& S, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv) ;
static void D1 (const Standard_Real U, const Standard_Real V, const gp_Torus& T, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv) ;
//! For elementary surfaces from the gp package (cones,
//! cylinders, spheres and tori), computes:
//! - the point P of parameters (U, V), and
//! - the first derivative vectors Vu and Vv at this point in
//! the u and v parametric directions respectively, and
//! - the second derivative vectors Vuu, Vvv and Vuv at this point.
Standard_EXPORT static void D2 (const Standard_Real U, const Standard_Real V, const gp_Cone& C, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv) ;
static void D2 (const Standard_Real U, const Standard_Real V, const gp_Cylinder& C, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv) ;
static void D2 (const Standard_Real U, const Standard_Real V, const gp_Sphere& S, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv) ;
static void D2 (const Standard_Real U, const Standard_Real V, const gp_Torus& T, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv) ;
//! For elementary surfaces from the gp package (cones,
//! cylinders, spheres and tori), computes:
//! - the point P of parameters (U,V), and
//! - the first derivative vectors Vu and Vv at this point in
//! the u and v parametric directions respectively, and
//! - the second derivative vectors Vuu, Vvv and Vuv at
//! this point, and
//! - the third derivative vectors Vuuu, Vvvv, Vuuv and
//! Vuvv at this point.
Standard_EXPORT static void D3 (const Standard_Real U, const Standard_Real V, const gp_Cone& C, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv, gp_Vec& Vuuu, gp_Vec& Vvvv, gp_Vec& Vuuv, gp_Vec& Vuvv) ;
static void D3 (const Standard_Real U, const Standard_Real V, const gp_Cylinder& C, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv, gp_Vec& Vuuu, gp_Vec& Vvvv, gp_Vec& Vuuv, gp_Vec& Vuvv) ;
static void D3 (const Standard_Real U, const Standard_Real V, const gp_Sphere& S, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv, gp_Vec& Vuuu, gp_Vec& Vvvv, gp_Vec& Vuuv, gp_Vec& Vuvv) ;
//! Surface evaluation
//! The following functions compute the point and the
//! derivatives on elementary surfaces defined with their
//! geometric characterisitics.
//! You don't need to create the surface to use these functions.
//! These functions are called by the previous ones.
//! Example :
//! A cylinder is defined with its position and its radius.
static void D3 (const Standard_Real U, const Standard_Real V, const gp_Torus& T, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv, gp_Vec& Vuuu, gp_Vec& Vvvv, gp_Vec& Vuuv, gp_Vec& Vuvv) ;
Standard_EXPORT static gp_Pnt PlaneValue (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos) ;
Standard_EXPORT static gp_Pnt CylinderValue (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius) ;
Standard_EXPORT static gp_Pnt ConeValue (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real SAngle) ;
Standard_EXPORT static gp_Pnt SphereValue (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius) ;
Standard_EXPORT static gp_Pnt TorusValue (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real MajorRadius, const Standard_Real MinorRadius) ;
Standard_EXPORT static gp_Vec PlaneDN (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Integer Nu, const Standard_Integer Nv) ;
Standard_EXPORT static gp_Vec CylinderDN (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Integer Nu, const Standard_Integer Nv) ;
Standard_EXPORT static gp_Vec ConeDN (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real SAngle, const Standard_Integer Nu, const Standard_Integer Nv) ;
Standard_EXPORT static gp_Vec SphereDN (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Integer Nu, const Standard_Integer Nv) ;
Standard_EXPORT static gp_Vec TorusDN (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real MajorRadius, const Standard_Real MinorRadius, const Standard_Integer Nu, const Standard_Integer Nv) ;
Standard_EXPORT static void PlaneD0 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, gp_Pnt& P) ;
Standard_EXPORT static void ConeD0 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real SAngle, gp_Pnt& P) ;
Standard_EXPORT static void CylinderD0 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, gp_Pnt& P) ;
Standard_EXPORT static void SphereD0 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, gp_Pnt& P) ;
Standard_EXPORT static void TorusD0 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real MajorRadius, const Standard_Real MinorRadius, gp_Pnt& P) ;
Standard_EXPORT static void PlaneD1 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv) ;
Standard_EXPORT static void ConeD1 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real SAngle, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv) ;
Standard_EXPORT static void CylinderD1 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv) ;
Standard_EXPORT static void SphereD1 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv) ;
Standard_EXPORT static void TorusD1 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real MajorRadius, const Standard_Real MinorRadius, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv) ;
Standard_EXPORT static void ConeD2 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real SAngle, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv) ;
Standard_EXPORT static void CylinderD2 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv) ;
Standard_EXPORT static void SphereD2 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv) ;
Standard_EXPORT static void TorusD2 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real MajorRadius, const Standard_Real MinorRadius, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv) ;
Standard_EXPORT static void ConeD3 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real SAngle, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv, gp_Vec& Vuuu, gp_Vec& Vvvv, gp_Vec& Vuuv, gp_Vec& Vuvv) ;
Standard_EXPORT static void CylinderD3 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv, gp_Vec& Vuuu, gp_Vec& Vvvv, gp_Vec& Vuuv, gp_Vec& Vuvv) ;
Standard_EXPORT static void SphereD3 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real Radius, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv, gp_Vec& Vuuu, gp_Vec& Vvvv, gp_Vec& Vuuv, gp_Vec& Vuvv) ;
//! The following functions compute the parametric values
//! corresponding to a given point on a elementary surface.
//! The point should be on the surface.
Standard_EXPORT static void TorusD3 (const Standard_Real U, const Standard_Real V, const gp_Ax3& Pos, const Standard_Real MajorRadius, const Standard_Real MinorRadius, gp_Pnt& P, gp_Vec& Vu, gp_Vec& Vv, gp_Vec& Vuu, gp_Vec& Vvv, gp_Vec& Vuv, gp_Vec& Vuuu, gp_Vec& Vvvv, gp_Vec& Vuuv, gp_Vec& Vuvv) ;
//! parametrization
//! P (U, V) =
//! Pl.Location() + U * Pl.XDirection() + V * Pl.YDirection()
static void Parameters (const gp_Pln& Pl, const gp_Pnt& P, Standard_Real& U, Standard_Real& V) ;
//! parametrization
//! P (U, V) = Location + V * ZDirection +
//! Radius * (Cos(U) * XDirection + Sin (U) * YDirection)
static void Parameters (const gp_Cylinder& C, const gp_Pnt& P, Standard_Real& U, Standard_Real& V) ;
//! parametrization
//! P (U, V) = Location + V * ZDirection +
//! (Radius + V * Tan (SemiAngle)) *
//! (Cos(U) * XDirection + Sin(U) * YDirection)
static void Parameters (const gp_Cone& C, const gp_Pnt& P, Standard_Real& U, Standard_Real& V) ;
//! parametrization
//! P (U, V) = Location +
//! Radius * Cos (V) * (Cos (U) * XDirection + Sin (U) * YDirection) +
//! Radius * Sin (V) * ZDirection
static void Parameters (const gp_Sphere& S, const gp_Pnt& P, Standard_Real& U, Standard_Real& V) ;
//! parametrization
//! P (U, V) = Location +
//! (MajorRadius + MinorRadius * Cos(U)) *
//! (Cos(V) * XDirection - Sin(V) * YDirection) +
//! MinorRadius * Sin(U) * ZDirection
static void Parameters (const gp_Torus& T, const gp_Pnt& P, Standard_Real& U, Standard_Real& V) ;
//! parametrization
//! P (U, V) =
//! Pl.Location() + U * Pl.XDirection() + V * Pl.YDirection()
Standard_EXPORT static void PlaneParameters (const gp_Ax3& Pos, const gp_Pnt& P, Standard_Real& U, Standard_Real& V) ;
//! parametrization
//! P (U, V) = Location + V * ZDirection +
//! Radius * (Cos(U) * XDirection + Sin (U) * YDirection)
Standard_EXPORT static void CylinderParameters (const gp_Ax3& Pos, const Standard_Real Radius, const gp_Pnt& P, Standard_Real& U, Standard_Real& V) ;
//! parametrization
//! P (U, V) = Location + V * ZDirection +
//! (Radius + V * Tan (SemiAngle)) *
//! (Cos(U) * XDirection + Sin(U) * YDirection)
Standard_EXPORT static void ConeParameters (const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real SAngle, const gp_Pnt& P, Standard_Real& U, Standard_Real& V) ;
//! parametrization
//! P (U, V) = Location +
//! Radius * Cos (V) * (Cos (U) * XDirection + Sin (U) * YDirection) +
//! Radius * Sin (V) * ZDirection
Standard_EXPORT static void SphereParameters (const gp_Ax3& Pos, const Standard_Real Radius, const gp_Pnt& P, Standard_Real& U, Standard_Real& V) ;
//! parametrization
//! P (U, V) = Location +
//! (MajorRadius + MinorRadius * Cos(U)) *
//! (Cos(V) * XDirection - Sin(V) * YDirection) +
//! MinorRadius * Sin(U) * ZDirection
Standard_EXPORT static void TorusParameters (const gp_Ax3& Pos, const Standard_Real MajorRadius, const Standard_Real MinorRadius, const gp_Pnt& P, Standard_Real& U, Standard_Real& V) ;
//! compute the U Isoparametric gp_Lin of the plane.
Standard_EXPORT static gp_Lin PlaneUIso (const gp_Ax3& Pos, const Standard_Real U) ;
//! compute the U Isoparametric gp_Lin of the cylinder.
Standard_EXPORT static gp_Lin CylinderUIso (const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real U) ;
//! compute the U Isoparametric gp_Lin of the cone.
Standard_EXPORT static gp_Lin ConeUIso (const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real SAngle, const Standard_Real U) ;
//! compute the U Isoparametric gp_Circ of the sphere,
//! (the meridian is not trimmed).
Standard_EXPORT static gp_Circ SphereUIso (const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real U) ;
//! compute the U Isoparametric gp_Circ of the torus.
Standard_EXPORT static gp_Circ TorusUIso (const gp_Ax3& Pos, const Standard_Real MajorRadius, const Standard_Real MinorRadius, const Standard_Real U) ;
//! compute the V Isoparametric gp_Lin of the plane.
Standard_EXPORT static gp_Lin PlaneVIso (const gp_Ax3& Pos, const Standard_Real V) ;
//! compute the V Isoparametric gp_Circ of the cylinder.
Standard_EXPORT static gp_Circ CylinderVIso (const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real V) ;
//! compute the V Isoparametric gp_Circ of the cone.
Standard_EXPORT static gp_Circ ConeVIso (const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real SAngle, const Standard_Real V) ;
//! compute the V Isoparametric gp_Circ of the sphere,
//! (the meridian is not trimmed).
Standard_EXPORT static gp_Circ SphereVIso (const gp_Ax3& Pos, const Standard_Real Radius, const Standard_Real V) ;
//! compute the V Isoparametric gp_Circ of the torus.
Standard_EXPORT static gp_Circ TorusVIso (const gp_Ax3& Pos, const Standard_Real MajorRadius, const Standard_Real MinorRadius, const Standard_Real V) ;
protected:
private:
};
#include <ElSLib.lxx>
#endif // _ElSLib_HeaderFile
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