/*!
* \brief RectifyToVector::setUpResult
* \param circle
* \return
*/
bool RectifyToVector::setUpResult(Circle &circle){
//get and check point
if(!this->inputElements.contains(0) || this->inputElements[0].size() != 1){
return false;
}
QPointer<Geometry> geometry = this->inputElements[0].at(0).geometry;
if(geometry.isNull() || !geometry->getIsSolved() || !geometry->hasDirection()){
return false;
}
//get the sense (positive or negative)
double sense = 1.0;
if(this->scalarInputParams.stringParameter.contains("sense")){
if(this->scalarInputParams.stringParameter.value("sense").compare("negative") == 0){
sense = -1.0;
}
}
//get the direction to compare
OiVec r_reference = geometry->getDirection().getVector();
r_reference.normalize();
OiVec r_circle = circle.getDirection().getVector();
r_circle.normalize();
//calculate the angle between both directions
double angle = 0.0;
OiVec::dot(angle, r_reference, r_circle);
angle = qAbs(qAcos(angle));
//invert the normal vector if the angle is greater than 90°
if(angle > PI/2.0){
r_circle = -1.0 * r_circle;
}
//invert the normal vector if sense is negative
r_circle = sense * r_circle;
//set result
Direction direction = circle.getDirection();
direction.setVector(r_circle);
circle.setCircle(circle.getPosition(), direction, circle.getRadius());
return true;
}
/*!
* \brief Register::setUpResult
* \param circle
* \return
*/
bool Register::setUpResult(Circle &circle){
//get and check plane
if(!this->inputElements.contains(0) || this->inputElements[0].size() != 1){
return false;
}
QPointer<Plane> plane = this->inputElements[0].at(0).plane;
if(plane.isNull() || !plane->getIsSolved()){
return false;
}
//get the position of the sphere and the plane and the normal vector
OiVec n_plane = plane->getDirection().getVector();
n_plane.normalize();
OiVec x_plane = plane->getPosition().getVector();
OiVec x_circle = circle.getPosition().getVector();
//calculate the distance of the plane from the origin
double d;
OiVec::dot(d, x_plane, n_plane);
if(d < 0.0){
n_plane = -1.0 * n_plane;
d = -d;
}
//calculate the distance of the sphere position from the plane
double s;
OiVec::dot(s, x_circle, n_plane);
s = s - d;
//project the sphere position into the plane
x_circle = x_circle - s * n_plane;
//set result
Position position = circle.getPosition();
position.setVector(x_circle);
circle.setCircle(position, circle.getDirection(), circle.getRadius());
return true;
}