/**
* Updates the tangents at the start and end to make the spline periodic.
*/
void RSpline::updateTangentsPeriodic() {
if (!isValid() || !isClosed()) {
qWarning() << "RSpline::updateTangentsPeriodic(): "
"spline not valid or not closed";
}
unsetTangents();
double tangent1 = getDirection1();
double tangent2 = RMath::getNormalizedAngle(getDirection2() + M_PI);
RVector v1 = RVector::createPolar(1.0, tangent1);
RVector v2 = RVector::createPolar(1.0, tangent2);
RVector t = (v1 + v2).getNormalized();
setTangents(t, t);
}
/**
* Updates the tangents at the start and end to make the spline periodic.
*/
void RSpline::updateTangentsPeriodic() {
if (!isValid() || !isClosed()) {
qWarning() << "RSpline::updateTangentsPeriodic(): "
"spline not valid or not closed";
}
// TODO: tangent support:
// RVector lStartTangent = tangentStart;
// RVector lEndTangent = tangentEnd;
unsetTangents();
double tangent1 = getDirection1();
double tangent2 = RMath::getNormalizedAngle(getDirection2() + M_PI);
RVector v1 = RVector::createPolar(1.0, tangent1);
RVector v2 = RVector::createPolar(1.0, tangent2);
RVector t = (v1 + v2).getNormalized();
// TODO: tangent support:
// RVector t1 = t;
// RVector t2 = t;
// t1.valid = lStartTangent.valid;
// t2.valid = lEndTangent.valid;
// if (!lStartTangent.isValid()) {
// setTangentAtStart(t1);
// }
// else {
// setTangentAtStart(lStartTangent);
// }
// if (!lEndTangent.isValid()) {
// setTangentAtEnd(t2);
// }
// else {
// setTangentAtEnd(lEndTangent);
// }
setTangents(t, t);
}
/**
* Clears the valud of the start and end tangents. The tangents are calculated
* and updated internally if not set manually.
*/
void RSpline::unsetTangents() {
setTangents(RVector::invalid, RVector::invalid);
}
