private static Linestring CreateWithBoundaryLoop(Linestring containingSourceRing,
Linestring touchingInteriorRing,
IntersectionPoint3D touchIntersection,
double tolerance)
{
double sourceTouchPointRatio;
int sourceTouchSegmentIdx =
touchIntersection.GetLocalSourceIntersectionSegmentIdx(
containingSourceRing, out sourceTouchPointRatio);
List <Linestring> subcurves = new List <Linestring>();
subcurves.Add(containingSourceRing.GetSubcurve(
0, 0, sourceTouchSegmentIdx, sourceTouchPointRatio,
false));
double targetTouchPointRatio;
int targetTouchSegmentIdx =
touchIntersection.GetLocalTargetIntersectionSegmentIdx(
touchingInteriorRing, out targetTouchPointRatio);
subcurves.Add(touchingInteriorRing.GetSubcurve(
targetTouchSegmentIdx, targetTouchPointRatio, false,
true));
subcurves.Add(containingSourceRing.GetSubcurve(
sourceTouchSegmentIdx, sourceTouchPointRatio,
containingSourceRing.SegmentCount - 1, 1, false));
Linestring withBoundaryLoop =
GeomTopoOpUtils.MergeConnectedLinestrings(subcurves, null, tolerance);
return(withBoundaryLoop);
}
protected static Linestring GetTargetSubcurve(
[NotNull] Linestring target,
[NotNull] IntersectionPoint3D fromIntersection,
[NotNull] IntersectionPoint3D toIntersection,
bool forward)
{
double fromDistanceAlongAsRatio;
int fromIndex = fromIntersection.GetLocalTargetIntersectionSegmentIdx(
target, out fromDistanceAlongAsRatio);
double toDistanceAlongAsRatio;
int toIndex = toIntersection.GetLocalTargetIntersectionSegmentIdx(
target, out toDistanceAlongAsRatio);
if (!forward &&
fromIntersection.VirtualTargetVertex > toIntersection.VirtualTargetVertex)
{
}
Linestring subcurve = target.GetSubcurve(
fromIndex, fromDistanceAlongAsRatio,
toIndex, toDistanceAlongAsRatio,
false, !forward);
// Replace the start / end with the actual intersection (correct source Z, exactly matching previous subcurve end)
subcurve.ReplacePoint(0, fromIntersection.Point);
subcurve.ReplacePoint(subcurve.SegmentCount, toIntersection.Point);
return(subcurve);
}
protected Linestring GetSourceSubcurve(
[NotNull] IntersectionPoint3D fromIntersection,
[NotNull] IntersectionPoint3D toIntersection)
{
Assert.ArgumentCondition(
fromIntersection.SourcePartIndex == toIntersection.SourcePartIndex,
"Cannot jump between source parts");
Linestring source = GetSourcePart(fromIntersection.SourcePartIndex);
double fromDistanceAlongAsRatio;
int fromIndex = fromIntersection.GetLocalSourceIntersectionSegmentIdx(
source, out fromDistanceAlongAsRatio);
double toDistanceAlongAsRatio;
int toIndex = toIntersection.GetLocalSourceIntersectionSegmentIdx(
source, out toDistanceAlongAsRatio);
Linestring subcurve = source.GetSubcurve(
fromIndex, fromDistanceAlongAsRatio,
toIndex, toDistanceAlongAsRatio,
false);
return(subcurve);
}
private static Linestring GetSourceSubcurve(
[NotNull] Linestring source,
[NotNull] IntersectionPoint3D fromIntersection,
[NotNull] IntersectionPoint3D toIntersection)
{
double fromDistanceAlongAsRatio;
int fromIndex = fromIntersection.GetLocalSourceIntersectionSegmentIdx(
source, out fromDistanceAlongAsRatio);
double toDistanceAlongAsRatio;
int toIndex = toIntersection.GetLocalSourceIntersectionSegmentIdx(
source, out toDistanceAlongAsRatio);
Linestring subcurve = source.GetSubcurve(
fromIndex, fromDistanceAlongAsRatio,
toIndex, toDistanceAlongAsRatio,
false);
return(subcurve);
}