double RS_ActionDrawPolyline::solveBulge(RS_Vector mouse) {
double b(0.);
bool suc;
RS_Arc arc(NULL, RS_ArcData());
RS_Line line(NULL,RS_LineData());
double direction,direction2,delta;
RS_AtomicEntity* lastentity;
calculatedSegment=false;
switch (Mode){
// case Line:
// b=0.0;
// break;
case Tangential:
if (polyline){
lastentity = (RS_AtomicEntity*)polyline->lastEntity();
direction = RS_Math::correctAngle(
lastentity->getDirection2()+M_PI);
line.setStartpoint(point);
line.setEndpoint(mouse);
direction2=RS_Math::correctAngle(line.getDirection2()+M_PI);
delta=direction2-direction;
if( fabs(remainder(delta,M_PI))>RS_TOLERANCE_ANGLE ) {
b=tan(delta/2);
suc = arc.createFrom2PBulge(point,mouse,b);
if (suc)
arc_data.reset(new RS_ArcData(arc.getData()));
else
b=0;
}
break;
// if(delta<RS_TOLERANCE_ANGLE ||
// (delta<M_PI+RS_TOLERANCE_ANGLE &&
// delta>M_PI-RS_TOLERANCE_ANGLE))
// b=0;
// else{
// b=tan((direction2-direction)/2);
// suc = arc.createFrom2PBulge(point,mouse,b);
// if (suc)
// arc_data = arc.getData();
// else
// b=0;
// }
}
// else
// b=0;
// break;
case TanRad:
if (polyline){
lastentity = (RS_AtomicEntity*)polyline->lastEntity();
direction = RS_Math::correctAngle(
lastentity->getDirection2()+M_PI);
suc = arc.createFrom2PDirectionRadius(point, mouse,
direction,Radius);
if (suc){
arc_data.reset(new RS_ArcData(arc.getData()));
b=arc.getBulge();
calculatedEndpoint = arc.getEndpoint();
calculatedSegment=true;
}
// else
// b=0;
}
// else
// b=0;
break;
/* case TanAng:
b=tan(Reversed*Angle*M_PI/720.0);
break;
case TanRadAng:
b=tan(Reversed*Angle*M_PI/720.0);
break;*/
case Ang:
b=tan(m_Reversed*Angle*M_PI/720.0);
suc = arc.createFrom2PBulge(point,mouse,b);
if (suc)
arc_data.reset(new RS_ArcData(arc.getData()));
else
b=0;
break;
default:
break;
/* case RadAngEndp:
b=tan(Reversed*Angle*M_PI/720.0);
break;
case RadAngCenp:
b=tan(Reversed*Angle*M_PI/720.0);*/
}
return b;
}
