int intersection(Segment a, Segment b) {
if(onLine(a, b.s) || onLine(a, b.t) || onLine(b, a.s) || onLine(b, a.t))
return 1;
if(cross(a.s, a.t, b.s)*cross(a.s, a.t, b.t) < 0 &&
cross(a.t, a.s, b.s)*cross(a.t, a.s, b.t) < 0 &&
cross(b.s, b.t, a.s)*cross(b.s, b.t, a.t) < 0 &&
cross(b.t, b.s, a.s)*cross(b.t, b.s, a.t) < 0
)
return 1;
return 0;
}
bool LineSegment::onSegment(Coord C, double tolerance) const
{
// C must be on the line
if( !onLine(C, tolerance) ) return false;
// additionally, C must be between A and B
if( (A < C) && (C < B) ) return true;
else return false;
}
Line planePlaneIntersection(const Plane& p1,const Plane& p2)
{
//Process: http://stackoverflow.com/a/17628505
Vector normal1=Vector(p1.getA(),p1.getB(),p1.getC()); //vector normal to p1
Vector normal2=Vector(p2.getA(),p2.getB(),p2.getC()); //vector normal to p2
Vector cross=Vector::cross(normal1, normal2); //vector parallel to line of intersection
if (fabs(cross.norm())<EPS)
{ //planes are parallel
Point zero=Point(0,0,0);
return Line(zero,zero);
}
double a1=p1.getA();
double b1=p1.getB();
double c1=p1.getC();
double d1=-1*p1.getD();
double a2=p2.getA();
double b2=p2.getB();
double c2=p2.getC();
double d2=-1*p2.getD();
double a3=cross.getX();
double b3=cross.getY();
double c3=cross.getZ();
double d3=0;
//solve with cramers rule
Matrix3x3 denom(a1,b1,c1,
a2,b2,c2,
a3,b3,c3);
Matrix3x3 xNum(d1,b1,c1,
d2,b2,c2,
d3,b3,c3);
Matrix3x3 yNum(a1,d1,c1,
a2,d2,c2,
a3,d3,c3);
Matrix3x3 zNum(a1,b1,d1,
a2,b2,d2,
a3,b3,d3);
double denomDeterminant=denom.determinant();
double xsolution=xNum.determinant()/denomDeterminant;
double ysolution=yNum.determinant()/denomDeterminant;
double zsolution=zNum.determinant()/denomDeterminant;
Point onLine(xsolution,ysolution,zsolution);
Point onLine2=onLine+cross;
return Line(onLine,onLine2);
}
/**
* Checks to see if there is a away message that we should put up right now.
* Once done starts a new clock.
*/
void AwaySchedule::checkToSeeIfWeShouldGoAway() {
QDate d = QDate::currentDate();
int day = d.dayOfWeek()-1;
QTime t = QTime::currentTime();
appointment *a = appointments.first();
while( a ) {
if( a->day == day ) {
if( a->startHour <= t.hour() && a->endHour >= t.hour() ) {
bool found = true;
if( a->startHour == t.hour() ) {
if( a->startMinute <= t.minute() )
found = true;
else
found = false;
}
if( found == true ) {
if( a->endHour == t.hour() ) {
if( a->endMinute >= t.minute() )
found = true;
else
found = false;
}
if( found == true ) {
if(!onLine()) {
// We are not online
break;
}
else {
qDebug("We found it within the hour time.");
if( enabled )
setAwayNow(a->message);
break;
}
}
}
}
}
a = appointments.next();
}
QTimer::singleShot( TIME_TO_CHECK_IN_SECONDS*1000, this, SLOT(checkToSeeIfWeShouldGoAway()));
}
int Engine::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = QObject::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
switch (_id) {
case 0: onEnginePanic((*reinterpret_cast< Atom(*)>(_a[1])),(*reinterpret_cast< Word(*)>(_a[2])),(*reinterpret_cast< const QString(*)>(_a[3])),(*reinterpret_cast< const QString(*)>(_a[4]))); break;
case 1: onLine((*reinterpret_cast< Atom(*)>(_a[1])),(*reinterpret_cast< Word(*)>(_a[2]))); break;
case 2: onExecutionFinished(); break;
case 3: onEngineStarted(); break;
case 4: onEngineStopped(); break;
case 5: eval((*reinterpret_cast< const QString(*)>(_a[1])),(*reinterpret_cast< const QString(*)>(_a[2])),(*reinterpret_cast< bool(*)>(_a[3]))); break;
case 6: evalFn((*reinterpret_cast< const QString(*)>(_a[1])),(*reinterpret_cast< Atom(*)>(_a[2]))); break;
case 7: fullstop(); break;
default: ;
}
_id -= 8;
}
return _id;
}
/*
* DoTimeouts()
*
* This is the function responsible for actual checking of timeouts. It
* returns TRUE if you want modIn to break out, too. It should only be called
* from modIn().
*/
char DoTimeouts()
{
int yr, dy, hr, mn, temp, mon, secs, milli;
static char warned = FALSE;
#ifdef SYSTEM_CLOCK
static int LastMinute = -1;
#endif
static int LastDay = 0;
extern int PriorityMail;
TwoNumbers *tmp;
EvDoorRec *evtmp;
extern SListBase UntilNetSessions;
void Activate();
char Oldpage;
getRawDate(&yr, &mon, &dy, &hr, &mn, &secs, &milli);
#ifdef SYSTEM_CLOCK
if (LastMinute != mn) {
ScrTimeUpdate(hr, mn);
LastMinute = mn;
}
#endif
if (LastDay != dy) {
LastDay = dy;
RunListA(&DayBased, Activate, (void *) &LastDay);
}
ThisMinute = (WhatDay() * 1440) + (hr * 60) + mn;
ThisAbsolute = (long) ThisMinute;
ThisSecond = ThisAbsolute * 60 + secs;
ThisAbsolute = CurAbsolute();
/* First we deal with events which are deactivating */
if ((tmp = GetFirst(&EventEnds)) != NULL) {
if (ThisAbsolute >= tmp->second) { /* event is ending! */
ClassActive[tmp->first] = FALSE;
KillData(&EventEnds, tmp); /* take it off the list */
if (tmp->first == CL_DL_TIME)
ResolveDLStuff();
}
}
if ((evtmp = GetFirst(&AutoDoors)) != NULL) {
if (ThisAbsolute >= evtmp->finish) { /* autodoor finish */
KillData(&AutoDoors, evtmp);
}
}
if ((evtmp = GetFirst(&Redirected)) != NULL) {
if (ThisAbsolute >= evtmp->finish) { /* redirection finish */
KillData(&Redirected, evtmp);
}
}
/* Next we deal with preemptive events, which are Type 0 */
/* give a warning at T-5 */
if ((Cur = GetFirst(&Types[0].List)) != NULL &&
!warned && Types[0].NextAbs - ThisAbsolute < 300l && onLine()) {
temp = Cur->EvMinutes % 1440;
warned = TRUE;
outFlag = IMPERVIOUS;
Oldpage = Pageable;
Pageable = FALSE;
mPrintf("\n %cWARNING: System going down at %d:%02d for %s.\n ",
BELL, temp/60, temp%60, Cur->EvWarn + cfg.codeBuf);
outFlag = OUTOK;
Pageable = Oldpage;
return FALSE;
}
else if (Cur != NULL && Types[0].NextAbs < ThisAbsolute) {
if (onLine()) { /* first boot off user, next time do event */
outFlag = IMPERVIOUS;
PagingOff();
mPrintf("\n %cGoing to %s, bye!\n ", BELL,
Cur->EvWarn + cfg.codeBuf);
if (onConsole) { /* Ugly cheat */
onConsole = FALSE;
whichIO = MODEM;
justLostCarrier = TRUE;
EnableModem(FALSE);
}
else
HangUp(FALSE);
outFlag = OUTOK;
return TRUE;
}
warned = FALSE;
return FigureEvent(0);
}
if (!onLine() && (Cur = GetFirst(&Types[1].List)) != NULL &&
Types[1].NextAbs < ThisAbsolute)
return FigureEvent(1);
if ((Cur = GetFirst(&Types[2].List)) != NULL &&
Types[2].NextAbs < ThisAbsolute)
return FigureEvent(2);
/* check priority mail -- odd place for the check, but wotthehell */
if (PriorityMail) {
if (!onLine()) {
netController((hr*60) + mn, 0, PRIORITY_MAIL, ANYTIME_NET, 0);
PriorityMail = 0;
}
}
/* handle anytime netting here - is special type of thing */
if (chkTimeSince(NEXT_ANYNET) > DeadTime || ForceNet) {
if (ClassActive[CL_ANYTIME_NET]) {
if (!onLine()) {
netController((hr * 60) + mn, AnyNetLen,
AnyTimeNets, ANYTIME_NET, 0);
ScrNewUser();
ForceNet = FALSE;
}
}
else ForceNet = FALSE;
startTimer(NEXT_ANYNET);
}
/*
* now see if we have any other net sessions due to be run. These are
* sessions scheduled by the user from the Net menu. If so, run each of
* them by killing the list (the kill function should run each).
*/
if (!onLine() && GetFirst(&UntilNetSessions) != NULL) {
KillList(&UntilNetSessions);
}
return ExitToMsdos;
}
bool overlap (const Line2D& l) const {
return onLine(l.p0) && parallel(l);
}
