本文整理汇总了C++中Vect3类的典型用法代码示例。如果您正苦于以下问题:C++ Vect3类的具体用法?C++ Vect3怎么用?C++ Vect3使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Vect3类的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: forceAndTorqueAccum
void BodyRigid::forceAndTorqueAccum(Vect3 const &f, bool forceInLocal, Vect3 const &forceAppLocal, Vect3 const &t, bool torqueInLocal)
{
Vect3 force; Vect3 torque;
if(forceInLocal)
{
force = m_q*f;
torque = forceAppLocal.cross(f);
}
else
{
force = f;
torque = forceAppLocal.cross(m_q.inverse()*f);
}
if(torqueInLocal)
{
torque += t;
}
else
{
torque += m_q.inverse()*t;
}
m_appliedForce += force;
m_appliedTorque += torque;
}
示例2: WCV_interval
// Assumes 0 <= B < T
LossData WCV_tvar::WCV_interval(const Vect3& so, const Velocity& vo, const Vect3& si, const Velocity& vi, double B, double T) const {
double time_in = T;
double time_out = B;
Vect2 so2 = so.vect2();
Vect2 si2 = si.vect2();
Vect2 s2 = so2.Sub(si2);
Vect2 vo2 = vo.vect2();
Vect2 vi2 = vi.vect2();
Vect2 v2 = vo2.Sub(vi2);
double sz = so.z-si.z;
double vz = vo.z-vi.z;
Interval ii = wcv_vertical->vertical_WCV_interval(table.getZTHR(),table.getTCOA(),B,T,sz,vz);
if (ii.low > ii.up) {
return LossData(time_in,time_out);
}
Vect2 step = v2.ScalAdd(ii.low,s2);
if (Util::almost_equals(ii.low,ii.up)) { // [CAM] Changed from == to almost_equals to mitigate numerical problems
if (horizontal_WCV(step,v2)) {
time_in = ii.low;
time_out = ii.up;
}
return LossData(time_in,time_out);
}
LossData ld = horizontal_WCV_interval(ii.up-ii.low,step,v2);
time_in = ld.getTimeIn() + ii.low;
time_out = ld.getTimeOut() + ii.low;
return LossData(time_in,time_out);
}
示例3: genContactsS
void CollisionSphere::genContactsS(const CollisionSphere& s, std::vector<std::shared_ptr<IContact>>& o) const
{
// Get distance between two objects, with this one at the origin...
Vect3 distance = s.getPos() - this->getPos();
// Spheres are touching if the magnitude of the distance is less than
// the sum of the radii
// Early out if this is not the case.
if (distance.squareMagnitude() > ((this->getRadius() + s.getRadius()) * (this->getRadius() + s.getRadius())))
{
return;
}
else
{
// Generate contacts!
// Contact is midpoint in world space of intersection,
// normal is direction of intersection.
Vect3Normal directionNormal = (s.getPos() - this->getPos());
float contactMagnitude = this->getRadius() + s.getRadius() - distance.magnitude();
// From the other object, go to the edge of the sphere.
// Subtract that from the edge of this sphere.
// now multiply the whole thing by 1/2, and add the edge of this sphere.
// That's the midpoint of the intersected space of the two spheres.
Vect3 contactPoint = ((s.getPos() - directionNormal * s.getRadius())
- (this->getPos() + directionNormal * this->getRadius()))
* 0.5f
+ (this->getPos() + directionNormal * this->getRadius());
o.push_back(summonDemons(contactPoint, directionNormal * -1.f, contactMagnitude, s.getAttachedObjectPtr(), _attachedObject));
o.push_back(summonDemons(contactPoint, directionNormal, contactMagnitude, this->getAttachedObjectPtr(), s.getAttachedObjectPtr()));
}
}
示例4: magnitude
void Force2BodySpringDamp::apply(double t)
{
// pt1 on body body 1 & pt2 on body 2
Vect3 pt1Pos = m_body1->getPosition(m_body1Offset);
Vect3 pt1Vel = m_body1->getVelocityGlobal(m_body1Offset);
Vect3 pt2Pos = m_body2->getPosition(m_body2Offset);
Vect3 pt2Vel = m_body2->getVelocityGlobal(m_body2Offset);
// distance between 2 points in global
Vect3 dist = pt2Pos-pt1Pos;
// Relative Velocity
Vect3 revVel = pt2Vel - pt1Vel;
// just to have meaningfull names
Vect3 normalForceVect = dist;
//normailze normalForceVector in place and get magnitude
double dist_mag = magnitude(normalForceVect);
normalForceVect.normalize();
double springForceMag = (dist_mag-m_fl)*m_k;
double velAlongSpring = normalForceVect.dot(revVel);
double dampForceMag = velAlongSpring * m_c;
double totalForceMag = springForceMag + dampForceMag;
Vect3 totalForceVect = normalForceVect * totalForceMag;
m_body1->forceAccum(totalForceVect,false,m_body1Offset);
m_body2->forceAccum(-totalForceVect,false,m_body2Offset);
}
示例5: time_loop
void TIME_STEPPER::time_loop() {
if (first_step) {
REAL OmRMax = 0.0, MaxRadius = 0.0;
if (globalSystem->useBodies) {
for (int i = 0; i < BODY::AllBodyFaces.size(); ++i) {
Vect3 Pos = BODY::AllBodyFaces[i]->CollocationPoint - BODY::AllBodyFaces[i]->Owner->CG;
// Get point kinematic velocity - rotational part first
Vect3 Vrot = BODY::AllBodyFaces[i]->Owner->BodyRates.Cross(Pos);
// Add to translational velocity....
Vect3 Vkin = BODY::AllBodyFaces[i]->Owner->Velocity + Vrot;
OmRMax = max(Vkin.Mag(), OmRMax);
MaxRadius = max(MaxRadius, Pos.Mag());
}
}
dt = globalSystem->dtInit;// = cfl_lim/OmRMax;
dt_prev = cfl_lim/OmRMax;
if (globalSystem->useBodies) {
BODY::BodySubStep(globalSystem->dtInit, globalSystem->NumSubSteps);
globalSystem->PutWakesInTree();
}
globalOctree->Reset();
globalOctree->GetVels();
// if (globalSystem->useFMM) {
//#pragma omp parallel for
// for (int i = 0; i < FVMCell::AllCells.size(); ++i)
// for (int j = 0; j < FVMCell::AllCells.size(); ++j)
// FVMCell::AllCells[i]->Velocity += UTIL::globalDirectVel(FVMCell::AllCells[j]->Position - FVMCell::AllCells[i]->Position, FVMCell::AllCells[j]->Omega);
// }
first_step = false;
} else {
#ifdef TIME_STEPS
long unsigned int t1 = ticks();
#endif
TimeAdvance();
// Produce Output
if (globalTimeStepper->dump_next) {
globalSystem->WriteData();
}
#ifdef TIME_STEPS
long unsigned int t13 = ticks();
stringstream tmp;
tmp << "Total....................: " << double(t13 - t1) / 1000.0 << endl;
globalIO->step_data += tmp.str();
#endif
// Display Status
globalIO->stat_step();
}
}
示例6: forceAccumGlobal
void BodyRigid::forceAccumGlobal(Vect3 const &globalForce, Vect3 const &globalPnt)
{
Vect3 fLocal = m_q.inverse() * globalForce;
Vect3 pntLocal = m_q.inverse() * (globalPnt-m_pos);
Vect3 tLocal = pntLocal.cross(fLocal);
//std::cout << "dfadsfads" << std::endl;
m_appliedForce += globalForce;
m_appliedTorque += tLocal;
}
示例7: tau
// time of closest approach
double VectFuns::tau(const Vect3& s, const Vect3& vo, const Vect3& vi) {
double rtn;
Vect3 v = vo.Sub(vi);
double nv = v.norm();
if (Util::almost_equals(nv,0.0)) {
rtn = std::numeric_limits<double>::max(); // pseudo infinity
} else
rtn = -s.dot(v)/(nv*nv);
return rtn;
}// tau
示例8: violation
bool WCV_tvar::violation(const Vect3& so, const Velocity& vo, const Vect3& si, const Velocity& vi) const {
Vect2 so2 = so.vect2();
Vect2 si2 = si.vect2();
Vect2 s2 = so2.Sub(si2);
Vect2 vo2 = vo.vect2();
Vect2 vi2 = vi.vect2();
Vect2 v2 = vo2.Sub(vi2);
return horizontal_WCV(s2,v2) &&
wcv_vertical->vertical_WCV(table.getZTHR(),table.getTCOA(),so.z-si.z,vo.z-vi.z);
}
示例9: setMassInertia
void BodyRigid::setMassInertia(Vect3 const &row0,Vect3 const &row1,Vect3 const &row2)
{
m_inertia(0,0)=row0.x(); m_inertia(0,1)=row0.y(); m_inertia(0,2)=row0.z();
m_inertia(1,0)=row1.x(); m_inertia(1,1)=row1.y(); m_inertia(1,2)=row1.z();
m_inertia(2,0)=row2.x(); m_inertia(2,1)=row2.y(); m_inertia(2,2)=row2.z();
cout << m_inertia << std::endl;
}
示例10: invXform
void Quat::invXform(Vect3 &v) const
{
Vect3 *u, uv, uuv;
u = (Vect3 *) &x_;
uv.cross(*u, v);
uuv.cross(*u, uv);
uv.scale(2.0 * -s_);
uuv.scale(2.0);
v.add(uv);
v.add(uuv);
}
示例11: Check
bool Target_Icosahedron::Check(real x, real y, real z)
{
const int indd[20] = { 0, 0, 0, 0, 0, 5, 6, 7, 8, 8, 9, 9, 9, 10, 10, 11, 11, 11, 11, 11 };
Vect3<real> tmp;
bool res = true;
for(int i=0; i<numNormals; ++i)
{
tmp.Set(x, y, z);
res = res && ((normals[i].Scalar(tmp - vertices[indd[i]])) <= (real)0.);
}
return res;
}
示例12: timeOfIntersection
/**
* Returns values indicating whether the ownship state will pass in front of or behind the intruder (from a horizontal perspective)
* @param so ownship position
* @param vo ownship velocity
* @param si intruder position
* @param vi intruder velocity
* @return 1 if ownship will pass in front (or collide, from a horizontal sense), -1 if ownship will pass behind, 0 if divergent or parallel
*/
int VectFuns::passingDirection(const Vect3& so, const Velocity& vo, const Vect3& si, const Velocity& vi) {
double toi = timeOfIntersection(so,vo,si,vi);
double tii = timeOfIntersection(si,vi,so,vo); // these values may have opposite sign!
//fpln("toi="+toi);
//fpln("int = "+ intersection(so,vo,si,vi));
if (ISNAN(toi) || toi < 0 || tii < 0) return 0;
Vect3 so3 = so.linear(vo, toi);
Vect3 si3 = si.linear(vi, toi);
//fpln("so3="+so3);
//fpln("si3="+si3);
if (behind(so3.vect2(), si3.vect2(), vi.vect2())) return -1;
return 1;
}
示例13: closestPoint
Vect3 VectFuns::closestPointOnSegment(const Vect3& a, const Vect3& b, const Vect3& so) {
Vect3 i = closestPoint(a,b,so);
double d1 = a.distanceH(b);
double d2 = a.distanceH(i);
double d3 = b.distanceH(i);
if (d2 <= d1 && d3 <= d1) {
return i;
} else if (d2 < d3) {
return a;
} else {
return b;
}
}
示例14: xform
void Quat::xform(const Vect3 &v, Vect3 &xv) const
{
Vect3 *u, uv, uuv;
u = (Vect3 *) &x_;
uv.cross(*u, v);
uuv.cross(*u, uv);
uv.scale(2.0 * s_);
uuv.scale(2.0);
xv.add(v, uv);
xv.add(uuv);
}
示例15: dpc
static double dpc(const Vect3& m, const Vect3 *pts, const Triangle& cell, Vect3& alphas, int nb, int* idx, bool& inside)
{
if(nb == 1) {
alphas(idx[0]) = 1.0;
return (m - pts[cell[idx[0]]]).norm();
}
// Solves H=sum(alpha_i A_i), sum(alpha_i)=1, et HM.(A_i-A_0)=0
Vect3 A0Ai[3]; // A_i-A_0
for(int i=1; i<nb; i++) {
A0Ai[i] = pts[cell[idx[i]]] - pts[cell[idx[0]]];
}
Vect3 A0M = m - pts[cell[idx[0]]]; // M-A_0
if(nb == 2) {
alphas(idx[1]) = (A0M * A0Ai[1]) / (A0Ai[1] * A0Ai[1]);
alphas(idx[0]) = 1.0 - alphas(idx[1]);
} else if (nb==3) {
// direct inversion (2x2 linear system)
double a00 = A0Ai[1] * A0Ai[1];
double a10 = A0Ai[1] * A0Ai[2];
double a11 = A0Ai[2] * A0Ai[2];
double b0 = A0M * A0Ai[1];
double b1 = A0M * A0Ai[2];
double d = a00 * a11 - a10 * a10;
assert(d != 0);
alphas(idx[1]) = (b0 * a11 - b1 * a10) / d;
alphas(idx[2]) = (a00 * b1 - a10 * b0) / d;
alphas(idx[0]) = 1.0 - alphas(idx[1]) - alphas(idx[2]);
} else {
// 3 unknowns or more -> solve system
// Ax=b with: A(i, j)=A0Ai.AjA0, x=(alpha_1, alpha_2, ...), b=A0M.A0Ai
cerr << "Error : dim>=4 in danielsson !" << endl;
exit(0);
}
// If alpha_i<0 -> brought to 0 and recursion
// NB: also takes care of alpha > 1 because if alpha_i>1 then alpha_j<0 for at least one j
for (int i=0; i<nb; i++) {
if (alphas(idx[i])<0) {
inside = false;
alphas(idx[i]) = 0;
swap(idx[i], idx[nb-1]);
return dpc(m, pts, cell, alphas, nb-1, idx, inside);
}
}
// Sinon: distance HM
Vect3 MH = -A0M;
for (int i=1; i<nb; i++) {
MH = MH + alphas(idx[i]) * A0Ai[i];
}
return MH.norm();
}