IEnumerable <KeyValuePair <BspSegment, BspSegment> > SearchNearSegments(Curve2dBspTree bsptree)
{
var result = new HashSet <KeyValuePair <BspSegment, BspSegment> >();
SearchNearSegmentsSegmentsOfNode(bsptree.Root, result);
return(result);
}
public override void Check(IEnumerable <ObjectId> selectedObjectIds)
{
if (!selectedObjectIds.Any())
{
return;
}
var originBspSegments = GetAllBspSegments(selectedObjectIds);
var bspSegmentForCollisions = new List <BspSegmentForCollsion>();
foreach (var bspSegment in originBspSegments)
{
// 将每个segment向外扩，形成一个矩形，矩形的宽为tolerance，但为了保险再向外扩0.001
var bspSegments = BspSegmentForCollsion.CreateSegmentsForCollision(bspSegment, _tolerance / 2.0 + 0.001);
bspSegmentForCollisions.AddRange(bspSegments);
}
var bsptree = new Curve2dBspTree(bspSegmentForCollisions);
var nearSegments = SearchNearSegments(bsptree);
var qualified = FilterNearSegments(nearSegments);
// Post process for nearSegmentPairs
_gaps = GetPolygonGapsFromSegmentPair(qualified);
foreach (var curveSegment in originBspSegments)
{
curveSegment.Dispose();
}
foreach (var bspSegmentForCollision in bspSegmentForCollisions)
{
bspSegmentForCollision.Dispose();
}
}
public Curve2dBspBuilder(IEnumerable <BspSegment> segments, Transaction transaction)
{
if (segments == null || !segments.Any())
{
throw new ArgumentNullException("segments");
}
if (transaction == null)
{
throw new ArgumentNullException("transaction");
}
_transaction = transaction;
_bspTree = new Curve2dBspTree(segments);
}
private void BuildBspTree(IEnumerable <ObjectId> allIds)
{
var allBspSegments = new List <BspSegment>();
foreach (var id in allIds)
{
var curve = _transaction.GetObject(id, OpenMode.ForRead) as Curve;
if (curve == null)
{
continue;
}
var segments = CurveUtils.GetSegment2dsOfCurve(curve, _transaction);
var bspSegments = segments.Select(it => new BspSegment()
{
EntityId = id,
LineSegment = it
});
allBspSegments.AddRange(bspSegments);
}
_bspTree = new Curve2dBspTree(allBspSegments);
}
