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Generic classes: "GProp_CGProps", "GProp_SGProps", "GProp_VGProps", "GProp_VGPropsGK", "GProp_TFunction" (internal), "GProp_UFunction" (internal) from "GProp" package converted to the non-generic classes and moved to the "BRepGProp" package. Names of several classes were changed to: "BRepGProp_Cinert", "BRepGProp_Sinert", "BRepGProp_Vinert", "BRepGProp_VinertGK". Also all instantiations of the "internal" classes of this classes were moved to the "Geom2dHatch.cdl". For new "BRepGProp_TFunction" and "BRepGProp_UFunction" internal classes two new "*.cdl" files were created.
130 lines
5.6 KiB
Plaintext
130 lines
5.6 KiB
Plaintext
-- Created on: 2005-12-21
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-- Created by: Sergey KHROMOV
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-- Copyright (c) 2005-2014 OPEN CASCADE SAS
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--
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-- This file is part of Open CASCADE Technology software library.
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--
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-- This library is free software; you can redistribute it and/or modify it under
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-- the terms of the GNU Lesser General Public License version 2.1 as published
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-- by the Free Software Foundation, with special exception defined in the file
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-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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-- distribution for complete text of the license and disclaimer of any warranty.
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--
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-- Alternatively, this file may be used under the terms of Open CASCADE
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-- commercial license or contractual agreement.
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class UFunction from BRepGProp inherits Function from math
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---Purpose: This class represents the integrand function for
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-- computation of an inner integral. The returned value
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-- depends on the value type and the flag IsByPoint.
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--
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-- The type of returned value is the one of the following
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-- values:
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-- - GProp_Mass - volume computation.
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-- - GProp_CenterMassX, GProp_CenterMassY,
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-- GProp_CenterMassZ - X, Y and Z coordinates of center
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-- of mass computation.
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-- - GProp_InertiaXX, GProp_InertiaYY, GProp_InertiaZZ,
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-- GProp_InertiaXY, GProp_InertiaXZ, GProp_InertiaYZ
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-- - moments of inertia computation.
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--
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-- If the flag IsByPoint is set to Standard_True, the value is
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-- returned for the region of space that is delimited by a
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-- surface and a point. Otherwise all computations are
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-- performed for the region of space delimited by a surface
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-- and a plane.
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uses
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Pnt from gp,
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XYZ from gp,
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Address from Standard,
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Boolean from Standard,
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Real from Standard,
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ValueType from GProp,
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Face from BRepGProp
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is
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Create(theSurface: Face from BRepGProp;
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theVertex : Pnt from gp;
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IsByPoint : Boolean from Standard;
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theCoeffs : Address from Standard)
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---Purpose: Constructor. Initializes the function with the face, the
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-- location point, the flag IsByPoint and the coefficients
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-- theCoeff that have different meaning depending on the value
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-- of IsByPoint.
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-- If IsByPoint is equal to Standard_True, the number of the
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-- coefficients is equal to 3 and they represent X, Y and Z
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-- coordinates (theCoeff[0], theCoeff[1] and theCoeff[2]
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-- correspondingly) of the shift, if the inertia is computed
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-- with respect to the point different then the location.
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-- If IsByPoint is equal to Standard_False, the number of the
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-- coefficients is 4 and they represent the combination of
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-- plane parameters and shift values.
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returns UFunction from BRepGProp;
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SetValueType(me: in out; theType: ValueType from GProp);
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---Purpose: Setting the type of the value to be returned.
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---C++: inline
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SetVParam(me: in out; theVParam: Real from Standard);
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---Purpose: Setting the V parameter that is constant during the
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-- integral computation.
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---C++: inline
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Value(me: in out; X: Real from Standard;
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F: out Real from Standard)
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---Purpose: Returns a value of the function.
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returns Boolean from Standard
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is redefined;
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-----------------------
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-- Private methods --
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-----------------------
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VolumeValue(me: in out; X : Real from Standard;
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thePMP0: out XYZ from gp;
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theS : out Real from Standard;
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theD1 : out Real from Standard)
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---Purpose: Private method. Returns the value for volume computation.
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-- Other returned values are:
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-- - thePMP0 - PSurf(X,Y) minus Location.
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-- - theS and theD1 coeffitients that are computed and used
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-- for computation of center of mass and inertia values
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-- by plane.
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returns Real from Standard
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is private;
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CenterMassValue(me: in out; X: Real from Standard;
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F: out Real from Standard)
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---Purpose: Private method. Returns a value for the center of mass
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-- computation. If the value type other then GProp_CenterMassX,
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-- GProp_CenterMassY or GProp_CenterMassZ this method returns
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-- Standard_False. Returns Standard_True in case of successful
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-- computation of a value.
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returns Boolean from Standard
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is private;
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InertiaValue(me: in out; X: Real from Standard;
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F: out Real from Standard)
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---Purpose: Private method. Computes the value of intertia. The type of
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-- a value returned is defined by the value type. If it is
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-- other then GProp_InertiaXX, GProp_InertiaYY,
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-- GProp_InertiaZZ, GProp_InertiaXY, GProp_InertiaXZ or
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-- GProp_InertiaYZ, the method returns Standard_False. Returns
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-- Standard_True in case of successful computation of a value
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returns Boolean from Standard
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is private;
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fields
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mySurface : Face from BRepGProp;
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myVertex : Pnt from gp;
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myCoeffs : Address from Standard;
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myVParam : Real from Standard;
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myValueType: ValueType from GProp;
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myIsByPoint: Boolean from Standard;
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end UFunction;
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