private static IEnumerable <HullLine> GetLineHullParts(Lin2D lin, SegmentHull hull)
{
Pnt leftOffset = hull.LeftOffset * lin.LNormal;
yield return(new HullLineSimple
{
Lin = lin.GetParallel(leftOffset), CutPart = CutPart.LeftSide
});
Pnt rightOffset = -hull.RightOffset * lin.LNormal;
yield return(new HullLineSimple
{
Lin = lin.GetParallel(rightOffset), CutPart = CutPart.RightSide
}
);
double meanOffset = (hull.LeftOffset + hull.RightOffset) / 2;
Pnt capOffset = (hull.LeftOffset - hull.RightOffset) / 2 * lin.LNormal;
Lin2D centerLin = lin.GetParallel(capOffset);
foreach (HullLine startPart in hull.StartCap.GetHullLines(
centerLin, meanOffset, atEnd: false))
{
startPart.CutPart = CutPart.StartCap;
yield return(startPart);
}
foreach (HullLine endPart in hull.EndCap.GetHullLines(centerLin, meanOffset,
atEnd: true))
{
endPart.CutPart = CutPart.EndCap;
yield return(endPart);
}
}
protected SegmentPair([NotNull] SegmentHull hull,
[NotNull] SegmentHull neighbor,
bool is3D)
{
_hull = hull;
_neighbor = neighbor;
_is3D = is3D;
}
public static SegmentPair Create([NotNull] SegmentHull hull,
[NotNull] SegmentHull neighbor,
bool is3D)
{
SegmentPair created = is3D
? (SegmentPair) new SegmentPair3D(hull, neighbor)
: new SegmentPair2D(hull, neighbor);
return(created);
}
private static IEnumerable <IHullPart> GetNeighborHullParts(Lin2D lin, SegmentHull hull)
{
Pnt leftOffset = hull.LeftOffset * lin.LNormal;
yield return
(new LineHullPart(lin.Ps + leftOffset, lin.Pe + leftOffset)
{
CutPart = CutPart.LeftSide
});
Pnt rightOffset = -hull.RightOffset * lin.LNormal;
yield return
(new LineHullPart(lin.Ps + rightOffset, lin.Pe + rightOffset)
{
CutPart = CutPart.RightSide
});
Pnt capOffset = (hull.LeftOffset - hull.RightOffset) / 2 * lin.LNormal;
Pnt pCapS = lin.Ps + capOffset;
Pnt pCapE = lin.Pe + capOffset;
double meanOffset = (hull.LeftOffset + hull.RightOffset) / 2;
foreach (IHullPart startPart in hull.StartCap.GetInflatedHullParts(
pCapS, pCapE, meanOffset, 0))
{
startPart.CutPart = CutPart.StartCap;
yield return(startPart);
}
foreach (IHullPart endPart in hull.EndCap.GetInflatedHullParts(
pCapE, pCapS, meanOffset, 0))
{
endPart.CutPart = CutPart.EndCap;
yield return(endPart);
}
}
public SegmentPair3D([NotNull] SegmentHull segmentProxy,
[NotNull] SegmentHull hullSegmentProxy) :
base(segmentProxy, hullSegmentProxy, is3D: true)
{
}
public SegmentPair2D([NotNull] SegmentHull segmentProxy,
[NotNull] SegmentHull hullSegmentProxy) :
base(segmentProxy, hullSegmentProxy, is3D: false)
{
}