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---Copyright: Matra Datavision 1991
class Sphere from gp inherits Storable
--- Purpose :
-- Describes a sphere.
-- A sphere is defined by its radius and positioned in space
-- with a coordinate system (a gp_Ax3 object). The origin of
-- the coordinate system is the center of the sphere. This
-- coordinate system is the "local coordinate system" of the sphere.
-- Note: when a gp_Sphere sphere is converted into a
-- Geom_SphericalSurface sphere, some implicit
-- properties of its local coordinate system are used explicitly:
-- - its origin, "X Direction", "Y Direction" and "main
-- Direction" are used directly to define the parametric
-- directions on the sphere and the origin of the parameters,
-- - its implicit orientation (right-handed or left-handed)
-- gives the orientation (direct, indirect) to the
-- Geom_SphericalSurface sphere.
-- See Also
-- gce_MakeSphere which provides functions for more
-- complex sphere constructions
-- Geom_SphericalSurface which provides additional
-- functions for constructing spheres and works, in
-- particular, with the parametric equations of spheres.
uses Ax1 from gp,
Ax2 from gp,
Ax3 from gp,
Dir from gp,
Pnt from gp,
Trsf from gp,
Vec from gp
raises ConstructionError from Standard
is
Create returns Sphere;
---C++:inline
--- Purpose : Creates an indefinite sphere.
Create (A3 : Ax3; Radius : Real) returns Sphere
---C++: inline
--- Purpose :
-- Constructs a sphere with radius Radius, centered on the origin
-- of A3. A3 is the local coordinate system of the sphere.
-- Warnings :
-- It is not forbidden to create a sphere with null radius.
-- Raises ConstructionError if Radius < 0.0
raises ConstructionError;
SetLocation (me : in out; Loc : Pnt) is static;
---C++: inline
--- Purpose : Changes the center of the sphere.
SetPosition (me : in out; A3 : Ax3) is static;
---C++: inline
--- Purpose : Changes the local coordinate system of the sphere.
SetRadius (me : in out; R : Real)
---C++: inline
--- Purpose : Assigns R the radius of the Sphere.
-- Warnings :
-- It is not forbidden to create a sphere with null radius.
-- Raises ConstructionError if R < 0.0
raises ConstructionError
is static;
Area (me) returns Real is static;
---C++: inline
--- Purpose :
-- Computes the aera of the sphere.
Coefficients (me; A1, A2, A3, B1, B2, B3, C1, C2, C3, D : out Real)
is static;
--- Purpose :
-- Computes the coefficients of the implicit equation of the quadric
-- in the absolute cartesian coordinates system :
-- A1.X**2 + A2.Y**2 + A3.Z**2 + 2.(B1.X.Y + B2.X.Z + B3.Y.Z) +
-- 2.(C1.X + C2.Y + C3.Z) + D = 0.0
UReverse (me : in out)
---C++: inline
---Purpose: Reverses the U parametrization of the sphere
-- reversing the YAxis.
is static;
VReverse (me : in out)
---C++: inline
---Purpose: Reverses the V parametrization of the sphere
-- reversing the ZAxis.
is static;
Direct (me) returns Boolean from Standard
---C++: inline
---Purpose: Returns true if the local coordinate system of this sphere
-- is right-handed.
is static;
Location (me) returns Pnt is static;
---C++: inline
--- Purpose ;
-- Returns the center of the sphere.
---C++: return const&
Position (me) returns Ax3 is static;
--- Purpose :
-- Returns the local coordinates system of the sphere.
---C++: inline
---C++: return const&
Radius (me) returns Real is static;
---C++: inline
--- Purpose : Returns the radius of the sphere.
Volume (me) returns Real is static;
---C++: inline
--- Purpose : Computes the volume of the sphere
XAxis (me) returns Ax1 is static;
---C++: inline
--- Purpose : Returns the axis X of the sphere.
YAxis (me) returns Ax1 is static;
---C++: inline
--- Purpose : Returns the axis Y of the sphere.
Mirror (me : in out; P : Pnt) is static;
Mirrored (me; P : Pnt) returns Sphere is static;
--- Purpose :
-- Performs the symmetrical transformation of a sphere
-- with respect to the point P which is the center of the
-- symmetry.
Mirror (me : in out; A1 : Ax1) is static;
Mirrored (me; A1 : Ax1) returns Sphere is static;
--- Purpose :
-- Performs the symmetrical transformation of a sphere with
-- respect to an axis placement which is the axis of the
-- symmetry.
Mirror (me : in out; A2 : Ax2) is static;
Mirrored (me; A2 : Ax2) returns Sphere is static;
--- Purpose :
-- Performs the symmetrical transformation of a sphere with respect
-- to a plane. The axis placement A2 locates the plane of the
-- of the symmetry : (Location, XDirection, YDirection).
Rotate (me : in out; A1 : Ax1; Ang : Real) is static;
---C++: inline
Rotated (me; A1 : Ax1; Ang : Real) returns Sphere is static;
---C++: inline
--- Purpose :
-- Rotates a sphere. A1 is the axis of the rotation.
-- Ang is the angular value of the rotation in radians.
Scale (me : in out; P : Pnt; S : Real) is static;
---C++:inline
Scaled (me; P : Pnt; S : Real) returns Sphere is static;
---C++:inline
--- Purpose :
-- Scales a sphere. S is the scaling value.
-- The absolute value of S is used to scale the sphere
Transform (me : in out; T : Trsf) is static;
---C++:inline
Transformed (me; T : Trsf) returns Sphere is static;
---C++:inline
--- Purpose :
-- Transforms a sphere with the transformation T from class Trsf.
Translate (me : in out; V : Vec) is static;
---C++:inline
Translated (me; V : Vec) returns Sphere is static;
---C++:inline
--- Purpose :
-- Translates a sphere in the direction of the vector V.
-- The magnitude of the translation is the vector's magnitude.
Translate (me : in out; P1, P2 : Pnt) is static;
---C++:inline
Translated (me; P1, P2 : Pnt) returns Sphere is static;
---C++:inline
--- Purpose :
-- Translates a sphere from the point P1 to the point P2.
fields
pos : Ax3;
radius : Real;
end;
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