int CheckCircleLineCollision(Circle2D C, Line2D L)
{
double a = DistancePointToLine(C.Center,L);
if(a <= C.Radius)
return 1;
else
return 0;
}
/**
* Find the closest distance from a given point to the interior of a
* building's lowest footprint. If the point is inside the footprint,
* the value 0.0 is returned.
*/
double vtBuilding::GetDistanceToInterior(const DPoint2 &point) const
{
vtLevel *lev = m_Levels[0];
// Ignore holes - a small shortcut, coulbe be addressed later
const DLine2 &foot = lev->GetOuterFootprint();
if (foot.ContainsPoint(point))
return 0.0;
int i, edges = foot.GetSize();
double dist, closest = 1E8;
for (i = 0; i < edges; i++)
{
DPoint2 p0 = foot[i];
DPoint2 p1 = foot[(i+1)%edges];
dist = DistancePointToLine(p0, p1, point);
if (dist < closest)
closest = dist;
}
return closest;
}
double iABlobImplicitFunction::JustEvaluateFunction (double x[3])
{
LineInfo* line;
double value = 0;
double pValue, pDist;
if (this->mbCount == 0)
return 0;
line = this->mb;
for (unsigned int i = 0; i < this->mbCount; i++, line++)
{
pValue = line->strength;
pDist = DistancePointToLine (line->point1, line->point2, x);
if(0 == i)
value = pDist;
else if(pDist <= value)
value = pDist;
//value += (pValue / pDist);
}
//printf("EvalFun: %lf, %lf, %lf = %lf\n", x[0], x[1], x[2], value);
return value;
}
//カプセルと球の衝突判定
bool CCollision::CollisionCapsuleShpere(const CVector3D &c_top,const CVector3D &c_bottom,float c_radius,const CVector3D &s_center , float s_radius){
float l = DistancePointToLine(c_top,c_bottom,s_center);
if(l<=c_radius+s_radius) return true;
return false;
}
