public void InnerOuterByOutline(Outline outl,
out MConsts.TypeInnerOuter typeInnerOuter)
{
typeInnerOuter = MConsts.TypeInnerOuter.Undef;
RayD ray;
CParam parStartRay;
MConsts.TypeParity typeParityContour, typeParityAll = MConsts.TypeParity.Even;
int iTrial;
for (iTrial = 0; iTrial < MConsts.MAX_RAY_INTERS_TRIAL; iTrial++)
{
try
{
typeParityAll = MConsts.TypeParity.Even;
if (!this.RayAlmostNormal(out ray, out parStartRay))
{
continue;
}
int pozCont;
for (pozCont = 0; pozCont < outl.NumCont; pozCont++)
{
Contour cont = outl.ContourByPoz(pozCont);
if (cont == this)
{
continue;
}
if (!cont.RayParity(ray, null, out typeParityContour))
{
break;
}
if (typeParityContour == MConsts.TypeParity.Undef)
{
break;
}
typeParityAll = (typeParityAll == typeParityContour)?
MConsts.TypeParity.Even: MConsts.TypeParity.Odd;
}
if (pozCont != outl.NumCont)
{
continue; // parity failed for one of contours
}
}
catch (ExceptionGMath)
{
continue;
}
break; // the result is clear, stop trials
}
if (iTrial == MConsts.MAX_RAY_INTERS_TRIAL)
{
return; // typeInnerOuter is undefined
}
typeInnerOuter = (typeParityAll == MConsts.TypeParity.Even)?
MConsts.TypeInnerOuter.Outer: MConsts.TypeInnerOuter.Inner;
}
public void InnerOuterBySelfOrientation(out MConsts.TypeInnerOuter typeInnerOuter)
{
typeInnerOuter = MConsts.TypeInnerOuter.Undef;
RayD ray;
CParam parStartRay;
MConsts.TypeParity typeParity;
for (int iTrial = 0; iTrial < MConsts.MAX_RAY_INTERS_TRIAL; iTrial++)
{
try
{
if (!this.RayAlmostNormal(out ray, out parStartRay))
{
continue;
}
// does not count the start of the ray as the intersection
if (!this.RayParity(ray, parStartRay, out typeParity))
{
continue;
}
if (typeParity == MConsts.TypeParity.Undef)
{
continue;
}
}
catch (ExceptionGMath)
{
continue;
}
typeInnerOuter = (typeParity == MConsts.TypeParity.Even)?
MConsts.TypeInnerOuter.Outer:
MConsts.TypeInnerOuter.Inner;
return;
}
}