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123 lines
3.9 KiB
Plaintext
Executable File
123 lines
3.9 KiB
Plaintext
Executable File
-- File: Geom2d_Geometry.cdl
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-- Created: Wed Mar 24 18:05:00 1993
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-- Author: JCV
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-- <fid@sdsun2>
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-- Copyright: Matra Datavision 1993
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---Copyright: Matra Datavision 1991
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deferred class Geometry from Geom2d inherits TShared from MMgt
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--- Purpose :
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-- The general abstract class Geometry in 2D space describes
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-- the common behaviour of all the geometric entities.
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--
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-- All the objects derived from this class can be move with a
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-- geometric transformation. Only the transformations which
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-- doesn't modify the nature of the geometry are available in
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-- this package.
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-- The method Transform which defines a general transformation
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-- is deferred. The other specifics transformations used the
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-- method Transform.
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-- All the following transformations modify the object itself.
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-- Warning
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-- Only transformations which do not modify the nature
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-- of the geometry can be applied to Geom2d objects:
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-- this is the case with translations, rotations,
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-- symmetries and scales; this is also the case with
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-- gp_Trsf2d composite transformations which are
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-- used to define the geometric transformations applied
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-- using the Transform or Transformed functions.
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-- Note: Geometry defines the "prototype" of the
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-- abstract method Transform which is defined for each
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-- concrete type of derived object. All other
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-- transformations are implemented using the Transform method.
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uses Ax2d from gp,
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Pnt2d from gp,
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Trsf2d from gp,
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Vec2d from gp
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raises ConstructionError from Standard
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is
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Mirror (me : mutable; P : Pnt2d)
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--- Purpose : Performs the symmetrical transformation of a Geometry
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-- with respect to the point P which is the center of the
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-- symmetry and assigns the result to this geometric object.
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is static;
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Mirror (me : mutable; A : Ax2d)
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--- Purpose : Performs the symmetrical transformation of a Geometry
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-- with respect to an axis placement which is the axis of the symmetry.
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is static;
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Rotate (me : mutable; P : Pnt2d; Ang : Real)
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--- Purpose : Rotates a Geometry. P is the center of the rotation.
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-- Ang is the angular value of the rotation in radians.
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is static;
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Scale (me : mutable; P : Pnt2d; S : Real)
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--- Purpose : Scales a Geometry. S is the scaling value.
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is static;
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Translate (me : mutable; V : Vec2d)
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--- Purpose : Translates a Geometry. V is the vector of the tanslation.
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is static;
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Translate (me : mutable; P1, P2 : Pnt2d)
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--- Purpose : Translates a Geometry from the point P1 to the point P2.
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is static;
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Transform (me : mutable; T : Trsf2d)
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--- Purpose : Transformation of a geometric object. This tansformation
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-- can be a translation, a rotation, a symmetry, a scaling
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-- or a complex transformation obtained by combination of
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-- the previous elementaries transformations.
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-- (see class Transformation of the package Geom2d).
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is deferred;
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--- Purpose : The following transformations have the same properties
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-- as the previous ones but they don't modified the object
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-- itself. A copy of the object is returned.
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Mirrored (me; P : Pnt2d) returns mutable like me
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is static;
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Mirrored (me; A : Ax2d) returns mutable like me
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is static;
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Rotated (me; P : Pnt2d; Ang : Real) returns mutable like me
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is static;
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Scaled (me; P : Pnt2d; S : Real) returns mutable like me
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is static;
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Transformed (me; T : Trsf2d) returns mutable like me
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is static;
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Translated (me; V : Vec2d) returns mutable like me
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is static;
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Translated (me; P1, P2 : Pnt2d) returns mutable like me
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is static;
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Copy (me) returns mutable like me is deferred;
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end;
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