eda_angle.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2021-2022 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include <geometry/eda_angle.h>
 
 
EDA_ANGLE EDA_ANGLE::m_Angle0 = EDA_ANGLE( 0, DEGREES_T );
EDA_ANGLE EDA_ANGLE::m_Angle45 = EDA_ANGLE( 45, DEGREES_T );
EDA_ANGLE EDA_ANGLE::m_Angle90 = EDA_ANGLE( 90, DEGREES_T );
EDA_ANGLE EDA_ANGLE::m_Angle135 = EDA_ANGLE( 135, DEGREES_T );
EDA_ANGLE EDA_ANGLE::m_Angle180 = EDA_ANGLE( 180, DEGREES_T );
EDA_ANGLE EDA_ANGLE::m_Angle270 = EDA_ANGLE( 270, DEGREES_T );
EDA_ANGLE EDA_ANGLE::m_Angle360 = EDA_ANGLE( 360, DEGREES_T );
 
 
EDA_ANGLE EDA_ANGLE::KeepUpright() const
{
 EDA_ANGLE inAngle( *this );
 inAngle.Normalize();
 
 double inDegrees = inAngle.AsDegrees();
 double outDegrees;
 
 if( inDegrees <= 45 || inDegrees >= 315 || ( inDegrees > 135 && inDegrees <= 225 ) )
 outDegrees = 0;
 else
 outDegrees = 90;
 
 return EDA_ANGLE( outDegrees, DEGREES_T );
}
 
 
bool EDA_ANGLE::IsCardinal() const
{
 double test = m_value;
 
 while( test < 0.0 )
 test += 90.0;
 
 while( test >= 90.0 )
 test -= 90.0;
 
 return test == 0.0;
}
 
 
bool EDA_ANGLE::IsCardinal90() const
{
 // return true if angle is one of the two cardinal directions (90/270 degrees),
 double test = std::abs( m_value );
 
 while( test >= 180.0 )
 test -= 180.0;
 
 return test == 90.0;
}