You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
2.6 KiB
79 lines
2.6 KiB
/*
|
|
**************************************************************************
|
|
description
|
|
--------------------
|
|
copyright : (C) 2000-2001 by Andreas Zehender
|
|
email : zehender@kde.org
|
|
**************************************************************************
|
|
|
|
**************************************************************************
|
|
* *
|
|
* 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 2 of the License, or *
|
|
* (at your option) any later version. *
|
|
* *
|
|
**************************************************************************/
|
|
|
|
#include "pmrotatecontrolpoint.h"
|
|
#include "pmmath.h"
|
|
#include "pmdebug.h"
|
|
|
|
#include <klocale.h>
|
|
#include <math.h>
|
|
|
|
const double precision = 0.1;
|
|
|
|
PMRotateControlPoint::PMRotateControlPoint( const PMVector& rot, int id )
|
|
: PMControlPoint( id, i18n( "Rotation" ) )
|
|
{
|
|
m_rotation = rot;
|
|
}
|
|
|
|
void PMRotateControlPoint::graphicalChangeStarted( )
|
|
{
|
|
m_originalRotation = m_rotation;
|
|
m_originalTransformation =
|
|
PMMatrix::rotation( deg2Rad( m_rotation.x( ) ),
|
|
deg2Rad( m_rotation.y( ) ),
|
|
deg2Rad( m_rotation.z( ) ) );
|
|
}
|
|
|
|
void PMRotateControlPoint::graphicalChange( const PMVector& startPoint,
|
|
const PMVector& viewNormal,
|
|
const PMVector& endPoint )
|
|
{
|
|
double a, x, y, z;
|
|
|
|
a = PMVector::angle( startPoint, endPoint );
|
|
if( !approxZero( a ) )
|
|
{
|
|
PMMatrix m;
|
|
|
|
if( !approx( a, M_PI ) )
|
|
{
|
|
PMVector n = PMVector::cross( startPoint, endPoint );
|
|
m = PMMatrix::rotation( n, a )
|
|
* m_originalTransformation;
|
|
}
|
|
else
|
|
m = PMMatrix::rotation( viewNormal, M_PI )
|
|
* m_originalTransformation;
|
|
|
|
m.toRotation( &x, &y, &z );
|
|
m_rotation[0] = rint( rad2Deg( x ) / precision ) * precision;
|
|
m_rotation[1] = rint( rad2Deg( y ) / precision ) * precision;
|
|
m_rotation[2] = rint( rad2Deg( z ) / precision ) * precision;
|
|
}
|
|
}
|
|
|
|
void PMRotateControlPoint::snapToGrid( )
|
|
{
|
|
int i;
|
|
double d = rotateGrid( );
|
|
if( !approxZero( d ) )
|
|
for( i = 0; i < 3; i++ )
|
|
m_rotation[i] = rint( m_rotation[i] / d ) * d;
|
|
setChanged( );
|
|
}
|