public static void Touch(ObjectId[] polylineIds)
{
var database = polylineIds[0].Database;
using (var tr = database.TransactionManager.StartTransaction())
{
foreach (var polylineId in polylineIds)
{
var curve = tr.GetObject(polylineId, OpenMode.ForRead) as Curve;
// 读取CAD图元
var reader = new DwgReader();
var lineString = reader.ReadGeometry(curve, tr) as LineString;
//lineString.Touches()
// 做出缓冲区
var geometry = LineStringSelfIntersectionsOp(lineString);
if (geometry.GeometryType == "Point")
{
var writer = new DwgWriter();
DBPoint dbPt = writer.WriteDbPoint(geometry as Point);
CadUtils.DrawPoint(tr, database, dbPt);
}
}
tr.Commit();
}
}
public static void FindTouchedEdge(ObjectId[] polylineIds)
{
if (polylineIds.Length != 2)
{
return;
}
//var ids = CadUtils.FindAllPolylines(Application.DocumentManager.MdiActiveDocument);
var database = Application.DocumentManager.MdiActiveDocument.Database;
using (var tr = database.TransactionManager.StartTransaction())
{
var reader = new DwgReader();
var entity1 = tr.GetObject(polylineIds[0], OpenMode.ForRead) as Curve;
var lineString1 = reader.ReadCurveAsLineString(tr, entity1);
lineString1.UserData = polylineIds[0];
var entity2 = tr.GetObject(polylineIds[1], OpenMode.ForRead) as Curve;
var lineString2 = reader.ReadCurveAsLineString(tr, entity2);
lineString2.UserData = polylineIds[1];
var isTouch = lineString1.Touches(lineString2);
System.Diagnostics.Trace.WriteLine(isTouch);
IGeometry intersections = lineString1.Intersection(lineString2);
//IGeometry intersections = CommonUtils.GetIntersectionPoints(lineString, polygon1);
if (intersections.Coordinates.Any())
{
foreach (var Coordinate in intersections.Coordinates)
{
var dbpoint = new DBPoint(new Point3d(Coordinate.X, Coordinate.Y, 0));
CadUtils.DrawPoint(tr, database, dbpoint);
}
// Draw all
var d = new DBPoint(new Point3d(intersections.Coordinates[0].X, intersections.Coordinates[0].Y, 0));
CadUtils.DrawPoint(tr, database, d, 2);
var lastIndex = intersections.Coordinates[intersections.Coordinates.Length - 1];
var d1 = new DBPoint(new Point3d(lastIndex.X,
lastIndex.Y, 0));
CadUtils.DrawPoint(tr, database, d1, 2);
}
tr.Commit();
}
}