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42cf5bc1ca
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl": - WOK-generated header files from inc and sources from drv are moved to src - CDL files removed - All packages are converted to nocdlpack
66 lines
2.5 KiB
C++
66 lines
2.5 KiB
C++
// Copyright (c) 1999-2014 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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#include <Message_ProgressScale.hxx>
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#include <TCollection_HAsciiString.hxx>
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static const Standard_Real ZERO = 1e-10;
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static const Standard_Real INFINITE = 1e100;
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//=======================================================================
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//function : Message_ProgressScale
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//purpose :
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//=======================================================================
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Message_ProgressScale::Message_ProgressScale () :
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myMin(0.), myMax(100.), myStep(1.), myInfinite(Standard_False),
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myFirst(0.), myLast(1.)
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{
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}
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//=======================================================================
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//function : LocalToBase
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//purpose :
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//=======================================================================
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Standard_Real Message_ProgressScale::LocalToBase (const Standard_Real val) const
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{
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if ( val <= myMin ) return myFirst;
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if ( myMax - myMin <= ZERO ) return myLast;
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if ( ! myInfinite ) {
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if ( val >= myMax ) return myLast;
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return myFirst + ( myLast - myFirst ) * ( val - myMin ) / ( myMax - myMin );
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}
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Standard_Real x = ( val - myMin ) / ( myMax - myMin );
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// return myFirst + ( myLast - myFirst ) * ( 1. - exp ( -x ) ); // exponent
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return myFirst + ( myLast - myFirst ) * x / ( 1. + x ); // hyperbola
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}
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//=======================================================================
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//function : BaseToLocal
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//purpose :
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//=======================================================================
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Standard_Real Message_ProgressScale::BaseToLocal (const Standard_Real val) const
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{
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if ( myLast - val <= ZERO )
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return myInfinite ? INFINITE : myMax;
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if ( ! myInfinite )
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return myMin + ( myMax - myMin ) * ( val - myFirst ) / ( myLast - myFirst );
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// Standard_Real x = log ( ( val - myFirst ) / ( myLast - val ) ); // exponent
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Standard_Real x = ( val - myFirst ) / ( myLast - val ); // hyperbola
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return myMin + x * ( myMax - myMin );
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}
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