295 lines
9.0 KiB
C++
295 lines
9.0 KiB
C++
#define _USE_MATH_DEFINES
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#include <cmath>
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#include "varc.h"
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#include <QDebug>
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VArc::VArc (){
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f1 = 0;
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f2 = 0;
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length = 0;
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radius = 0;
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center = 0;
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p1 = QPointF( 0, 0 );
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p2 = QPointF( 0, 0 );
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points = 0;
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}
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VArc::VArc (const QMap<qint64, VPointF> *points, qint64 center, qreal radius, qreal f1, qreal f2 ){
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this->points = points;
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ModifiArc( center, radius, f1, f2 );
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}
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qreal VArc::GetF1 () const{
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return f1;
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}
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qreal VArc::GetF2 () const{
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return f2;
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}
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qreal VArc::GetLength () const{
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return length;
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}
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qreal VArc::GetRadius () const{
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return radius;
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}
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qint64 VArc::GetCenter() const{
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return center;
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}
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QPointF VArc::GetCenterPoint() const{
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if(points->contains(center)){
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return points->value(center);
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} else {
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qCritical()<<"Не можу знайти id = "<<center<<" в таблиці.";
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throw"Не можу знайти точку за id.";
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}
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return QPointF();
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}
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QPointF VArc::GetP1() const{
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return p1;
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}
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QPointF VArc::GetP2 () const{
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return p2;
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}
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const QMap<qint64, VPointF> *VArc::GetDataPoints() const{
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return points;
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}
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void VArc::ModifiArc (qint64 center, qreal radius, qreal f1, qreal f2 ){
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this->f1 = f1;
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this->f2 = f2;
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this->radius = radius;
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this->center = center;
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QPointF p1 ( GetCenterPoint().x () + radius, GetCenterPoint().y () );
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QLineF centerP1(GetCenterPoint(), p1);
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centerP1.setAngle(f1);
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p1 = centerP1.p2();
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QPointF p2 ( GetCenterPoint().x () + radius, GetCenterPoint().y () );
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QLineF centerP2(GetCenterPoint(), p2);
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centerP2.setAngle(f2);
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p2 = centerP2.p2();
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this->p1 = p1;
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this->p2 = p2;
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// визначимо довжину дуги за формулою.
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// МОЖЛИВО НЕ ПРАВИЛЬНО. ПОТРІБНО ПЕРЕВІРИТИ ФОРМУЛУ, ОСКІЛЬКИ КУТ ПОВЕРТАЄТЬСЯ В ГРАДУСАХ!!!!!
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//qreal ang = AngleArc ( f1, f2 ) ;
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qreal ang = centerP1.angleTo(centerP2);
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this->length = ang * radius * M_PI/180;
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//qDebug()<<"ang = "<<ang<<"length ="<<length;
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}
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//void VArc::BiasArc ( qreal mx, qreal my ){
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// this->center = QPointF( center.x()+mx, center.y()+my );
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// this->p1 = QPointF( p1.x()+mx, p1.y()+my );
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// this->p2 = QPointF( p2.x()+mx, p2.y()+my );
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//}
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//void VArc::RotationArc (QPointF pRotate, qreal angle ){
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// QLineF pRotateCenter( pRotate, center );
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// pRotateCenter.setAngle( angle );
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// center = pRotateCenter.p2();
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// QLineF pRotateP1( pRotate, p1 );
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// pRotateP1.setAngle( angle );
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// p1 = pRotateP1.p2();
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// QLineF pRotateP2( pRotate, p2 );
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// pRotateP2.setAngle( angle );
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// p2 = pRotateP2.p2();
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// QLineF centerP1 ( center, p1 );
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// QLineF centerP2 ( center, p2 );
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// f1 = centerP1.angle();
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// f2 = centerP2.angle();
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//}
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VSpline VArc::SplOfArc ( qint32 number ) const{
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qint32 n = NumberSplOfArc ();
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if( number > n ){
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throw "Дуга не складається з такої кількості сплайнів.";
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}
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qreal f1 = GetF1 ();
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qreal f2 = GetF2 ();
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qint32 i;
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for ( i = 0; i < n; ++i ){
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if ( i == n - 1 ){
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f2 = GetF2 ();
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} else {
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if ( f1 + 90 > 360 ){
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f2 = f1 + 90 - 360;
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} else {
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f2 = f1 + 90;
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}
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}
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qreal anglF1, anglF2;
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if ( f1 + 90 > 360 ){
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anglF1 = f1 + 90 - 360 ;
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} else {
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anglF1 = f1 + 90 ;
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}
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if ( f2 - 90 < 0 ){
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anglF2 = 360 + f2 - 90 ;
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} else {
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anglF2 = f2 - 90 ;
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}
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if ( i + 1 == number ){
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// return VSpline (GetDataPoints(), GetP1 (), GetP2 (), anglF1, anglF2, 1., 1., 1. );
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f1 = f2;
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}
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}
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return VSpline();
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}
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//void VArc::CutArc ( qreal length, VArc &arcFir, VArc &arcSec ) const{
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// if ( length > GetLength () ){
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// qDebug()<<"Не правильна довжина дуги/n";
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// exit(-1);
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// }
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// qreal angle;
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// angle = GetF1 () + (length * 180) / (radius * M_PI);
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// arcFir.ModifiArc ( GetCenter (), GetRadius (), GetF1 (), angle );
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// arcSec.ModifiArc ( GetCenter (), GetRadius (), angle, GetF2 () );
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//}
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//void VArc::CutArc ( QPointF point, VArc &arcFir, VArc &arcSec ) const{
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// VArc arc = VArc(center,radius, f1, QLineF(center, point).angle());
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// if(this->length<arc.GetLength()){
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// throw"Не можу розрізати дугу. Не правильна точка.";
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// } else {
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// CutArc ( arc.GetLength(), arcFir, arcSec );
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// }
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//}
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QLineF::IntersectType VArc::CrossingArcLine ( const QLineF &line, QPointF *intersectionPoint ) const{
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qint32 i, n;
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QLineF::IntersectType type = QLineF::NoIntersection;
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n = NumberSplOfArc ();
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for ( i = 0; i < n; ++i ){
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VSpline curve = SplOfArc ( i + 1 );
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QPointF crosPoint;
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type = curve.CrossingSplLine ( line, &crosPoint );
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if ( type == QLineF::BoundedIntersection ){
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*intersectionPoint = crosPoint;
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return type;
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} else{
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if ( type == QLineF::NoIntersection || type == QLineF::UnboundedIntersection ){
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throw "Не можу знайти точку перетину сплайну з лінією.";
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}
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}
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}
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}
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qint32 VArc::NumberSplOfArc () const{
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qint32 angArc = ( qint32 ) AngleArc ( GetF1 (), GetF2 () );
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switch( angArc ){
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case 0:
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throw "Кут дуги не може бути 0 градусів.";
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break;
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case 90:
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return 1;
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case 180:
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return 2;
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case 270:
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return 3;
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case 360:
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return 4;
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default :
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return ( qint32 ) AngleArc ( GetF1 (), GetF2 () ) / 90 + 1;
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}
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}
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qreal VArc::AngleArc( qreal f1, qreal f2 ) const{
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QLineF normal = QLineF( 0, 0, 100, 0 );
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normal.setAngle(f1);
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QLineF normal2 = QLineF( 0, 0, 100, 0 );
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normal2.setAngle(f2);
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return normal.angleTo(normal2);
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}
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QPainterPath VArc::GetPath() const{
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QPainterPath Path;
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qint32 numberSpl = NumberSplOfArc();
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for(qint32 i = 1; i <= numberSpl; ++i){
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VSpline spl = SplOfArc ( i );
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Path.addPath( spl.GetPath() );
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}
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return Path;
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}
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QVector<QPointF> VArc::GetPoints () const{
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QVector<QPointF> points;
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qint32 numberSpl = NumberSplOfArc();
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for(qint32 i = 1; i <= numberSpl; ++i){
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VSpline spl = SplOfArc ( i );
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points<<spl.GetPoints();
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}
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return points;
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}
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QPointF VArc::Tangent(const QPointF P, Tangent_e tan)const{
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QLineF CP = QLineF(GetCenterPoint(),P);
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CP.setLength(CP.length()/2);
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QPointF O = CP.p2();
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QLineF CO = QLineF(GetCenterPoint(),O);
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qreal d = CO.length();
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if ( d > GetRadius() + CO.length() ){
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throw"Немає перетину кіл для знаходження дотичних.";
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}
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if ( d < qAbs(GetRadius() - CO.length()) ){
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throw"Не можу знайти дотичну. Одне коло знаходиться в іншому.";
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}
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qreal a = (pow(GetRadius(),2) - pow(CO.length(),2) + pow(d,2) ) / (2*d);
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qreal h = sqrt(pow(GetRadius(),2) - pow(a,2));
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qreal x2 = GetCenterPoint().x() + a * (O.x() - GetCenterPoint().x())/d;
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qreal y2 = GetCenterPoint().y() + a * (O.y() - GetCenterPoint().y())/d;
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if(tan == VArc::FirstTangent){
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qreal x3 = x2 - h * ( O.y() - GetCenterPoint().y() ) / d;
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qreal y3 = y2 + h * ( O.x() - GetCenterPoint().x() ) / d;
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return QPointF(x3,y3);
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} else {
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qreal x3 = x2 + h * ( O.y() - GetCenterPoint().y() ) / d;
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qreal y3 = y2 - h * ( O.x() - GetCenterPoint().x() ) / d;
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return QPointF(x3,y3);
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}
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}
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bool VArc::Contains(const QPointF P)const{
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QVector<QPointF> points = GetPoints ();
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for(qint32 i=0; i< points.size();++i){
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if((qint32)points[i].x()==(qint32)P.x() && (qint32)points[i].y()==(qint32)P.y()){
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return true;
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}
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}
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return false;
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}
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QPointF VArc::PutAlongArc(qreal length) const{
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if(GetLength()<length){
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throw"Довжина дуги менше заданої довжини";
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} else {
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qreal n = (length*180)/(M_PI*GetRadius());
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QLineF CP1 = QLineF(GetCenterPoint(),GetP1());
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CP1.setAngle(CP1.angle()+n);
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return CP1.p2();
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}
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}
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//void VArc::Mirror(const QPointF Pmirror){
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// QPointF Center = center;
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// Center = QPointF(Center.x() - Pmirror.x(), Center.y() - Pmirror.y());
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// Center = QPointF(Center.x() * -1.0, Center.y() * 1.0);
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// Center = QPointF(Center.x() + Pmirror.x(), Center.y() + Pmirror.y());
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// QPointF P1 = p1;
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// P1 = QPointF(P1.x() - Pmirror.x(), P1.y() - Pmirror.y());
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// P1 = QPointF(P1.x() * -1.0, P1.y() * 1.0);
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// P1 = QPointF(P1.x() + Pmirror.x(), P1.y() + Pmirror.y());
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// QPointF P2 = p2;
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// P2 = QPointF(P2.x() - Pmirror.x(), P2.y() - Pmirror.y());
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// P2 = QPointF(P2.x() * -1.0, P2.y() * 1.0);
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// P2 = QPointF(P2.x() + Pmirror.x(), P2.y() + Pmirror.y());
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// this->ModifiArc ( Center, radius, QLineF(Center,P2).angle(), QLineF(Center,P1).angle() );
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//}
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