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Fixed GetPoint function in VEllipticalArc

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--HG--
branch : feature
This commit is contained in:
Valentina Zhuravska 2016-02-19 11:47:22 +02:00
parent 9eb385c7a2
commit 03086c946e
1 changed files with 37 additions and 18 deletions
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55
src/libs/vgeometry/vellipticalarc.cpp
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@ -150,14 +150,7 @@ qreal VEllipticalArc::GetLength() const
*/
QPointF VEllipticalArc::GetP1() const
{
// p1 - point without rotation
QPointF p1 ( GetCenter().x () + qFloor((d->radius1 + d->radius2)*cos(d->f1*M_PI/180)),
GetCenter().y () + qFloor((d->radius1 + d->radius2)*sin(d->f1*M_PI/180)));
// rotation of point
QLineF line(GetCenter().toQPointF(), p1);
line.setAngle(line.angle() + GetRotationAngle());
return line.p2();
return GetPoint(d->f1);
}
//---------------------------------------------------------------------------------------------------------------------
@ -167,14 +160,7 @@ QPointF VEllipticalArc::GetP1() const
*/
QPointF VEllipticalArc::GetP2 () const
{
// p2 - point without rotation
QPointF p2 ( GetCenter().x () + qFloor((d->radius1 + d->radius2)*cos(d->f2*M_PI/180)),
GetCenter().y () + qFloor((d->radius1 + d->radius2)*sin(d->f2*M_PI/180)));
// rotation of point
QLineF line(GetCenter().toQPointF(), p2);
line.setAngle(line.angle() + GetRotationAngle());
return line.p2();
return GetPoint(d->f2);
}
//---------------------------------------------------------------------------------------------------------------------
@ -184,9 +170,42 @@ QPointF VEllipticalArc::GetP2 () const
*/
QPointF VEllipticalArc::GetPoint (qreal angle) const
{
if (angle > 360 || angle < 0)
{// Filter incorect value of angle
QLineF dummy(0,0, 100, 0);
dummy.setAngle(angle);
angle = dummy.angle();
}
// p - point without rotation
QPointF p ( GetCenter().x () + qFloor((d->radius1 + d->radius2)*cos(angle*M_PI/180)),
GetCenter().y () + qFloor((d->radius1 + d->radius2)*sin(angle*M_PI/180)));
qreal x = qAbs((d->radius1 * d->radius2)/
(qSqrt(d->radius2*d->radius2+d->radius1*d->radius1*qTan(M_PI*angle/180)*qTan(M_PI*angle/180))));
qreal y = qAbs(qTan(M_PI*angle/180) * x);
if (angle > 90 && angle <= 180)
{
x = -x;
}
else if (angle > 180 && angle < 270)
{
x = -x;
y = -y;
}
else if (angle > 270)
{
y = -y;
}
else if (angle == 90)
{
x = 0;
y = d->radius2;
}
else if (angle == 270)
{
x = 0;
y = -d->radius2;
}
QPointF p ( GetCenter().x () + x, GetCenter().y () + y);
// rotation of point
QLineF line(GetCenter().toQPointF(), p);
line.setAngle(line.angle() + GetRotationAngle());