public static IEnumerable <Point3d> GetPointsFromPolyline([NotNull] this Database database, ObjectId id)
{
using (OpenCloseTransaction transAction = database.TransactionManager.StartOpenCloseTransaction())
{
object objectX = transAction.GetObject(id, OpenMode.ForRead);
switch (objectX.GetType().ToString())
{
case "Autodesk.AutoCAD.DatabaseServices.Polyline3d":
{
//Get a list of 3D points in parameter order
using (Polyline3d pl1 = (Polyline3d)objectX)
{
// We get curve here, its faster to get the
// parameters and point on a non database object
var curve = pl1.GetGeCurve(new Tolerance(1e-10, 1e-10));
var polylineEndParam = (int)pl1.EndParam;
// Initialize list with dimensions specified (speed)
Point3d[] arrRes = new Point3d[polylineEndParam + 1];
for (int i = 0; i <= polylineEndParam; i++)
{
var distOnPl = pl1.GetDistanceAtParameter(i);
arrRes[i] = curve.EvaluatePoint(curve.GetParameterAtLength(0, distOnPl, true, 1e-10));
}
transAction.Commit();
return(arrRes);
}
}
default: throw new Exception("\r\n\t=> Selected object is not supported for this function.");
}
}
}
public static IEnumerable <DistanceBetween2PolylinesSectionResult> CalculateDistanceBetween3dPolylines(Database database, ObjectId pl1Id, ObjectId pl2Id)
{
Curve3d curve1, curve2 = null;
int polyline1EndParam;
Point3d[] parameterListPoints = null;
double[] parameterListLength = null;
using (Transaction transAction = database.TransactionManager.StartTransaction())
{
object objectX1 = transAction.GetObject(pl1Id, OpenMode.ForRead);
object objectX2 = transAction.GetObject(pl2Id, OpenMode.ForRead);
//Get a list of 3D points in parameter order
using (Polyline3d pl1 = (Polyline3d)objectX1)
using (Polyline3d pl2 = (Polyline3d)objectX2)
{
// We get curve here, its faster to get the parameters and
// point on a non database object
curve1 = pl1.GetGeCurve(new Tolerance(1e-10, 1e-10));
curve2 = pl2.GetGeCurve(new Tolerance(1e-10, 1e-10));
polyline1EndParam = (int)pl1.EndParam;
parameterListPoints = new Point3d[polyline1EndParam + 1];
parameterListLength = new double[polyline1EndParam + 1];
for (int y = 0; y <= polyline1EndParam; y++)
{
parameterListPoints[y] = pl1.GetPointAtParameter(y);
parameterListLength[y] = pl1.GetDistanceAtParameter(y);
}
}
// Initialize list with dimensions specified (speed)
DistanceBetween2PolylinesSectionResult[] arrRes = new DistanceBetween2PolylinesSectionResult[polyline1EndParam + 1];
//for (int i = 0; i <= polyline1EndParam; i++)
Parallel.For(0, polyline1EndParam + 1, (i) =>
{
Point3d pointOnCurve1, pointOnCurve2;
lock (_curveLock)
{
pointOnCurve1 = parameterListPoints[i];
pointOnCurve2 = curve2.GetClosestPointTo(pointOnCurve1).Point;
}
// Add result to array
lock (_arrayLock)
arrRes[i] = new DistanceBetween2PolylinesSectionResult(
parameterListLength[i],
pointOnCurve1.Z - pointOnCurve2.Z,
pointOnCurve1.T2d().GetDistanceTo(pointOnCurve2.T2d()),
pointOnCurve1.DistanceTo(pointOnCurve2),
pointOnCurve1, pointOnCurve2);
});
transAction.Commit();
return(arrRes);
}
}
public static Tuple <IEnumerable <Point3d>, IEnumerable <Point3d> > GetPointsFrom2PolylinesWithPointWeeding([NotNull] this Database database, ObjectId id1, ObjectId id2, [GreaterThan(.0)] double weeding)
{
// Weeding, we only add the point when weeding factor has been satisfied.
using (OpenCloseTransaction transAction = database.TransactionManager.StartOpenCloseTransaction())
{
object object1 = transAction.GetObject(id1, OpenMode.ForRead);
object object2 = transAction.GetObject(id2, OpenMode.ForRead);
if (object1.GetType().ToString() != "Autodesk.AutoCAD.DatabaseServices.Polyline3d" ||
object2.GetType().ToString() != "Autodesk.AutoCAD.DatabaseServices.Polyline3d")
{
throw new Exception("\r\n\t=> Selected object is not supported for this function.");
}
//Get a list of 3D points in parameter order
using (Polyline3d pl1 = (Polyline3d)object1)
using (Polyline3d pl2 = (Polyline3d)object2)
{
// We get curve here, its faster to get the parameters and
// point on a non database object
var curve1 = pl1.GetGeCurve(new Tolerance(1e-10, 1e-10));
var curve2 = pl2.GetGeCurve(new Tolerance(1e-10, 1e-10));
// Initialize list with dimensions specified (speed)
var bounds = (int)Math.Ceiling(pl1.Length / weeding) + 1;
Point3d[] arrRes1 = new Point3d[bounds];
Point3d[] arrRes2 = new Point3d[bounds];
var arrCounter = 0;
// For each point on PL1 we find the closest point on PL2
// and create a tuple of the result.
for (double i = 0.0; i < pl1.Length; i += weeding)
{
var p1 = curve1.EvaluatePoint(curve1.GetParameterAtLength(0, i, true, 1e-10));
var p2 = curve2.GetClosestPointTo(p1, new Tolerance(1e-10, 1e-10)).Point;
arrRes1[arrCounter] = p1;
arrRes2[arrCounter++] = p2;
}
arrRes1[arrCounter] = pl1.EndPoint;
arrRes2[arrCounter] = curve2.GetClosestPointTo(pl1.EndPoint, new Tolerance(1e-10, 1e-10)).Point;
transAction.Commit();
return(new Tuple <IEnumerable <Point3d>, IEnumerable <Point3d> >(arrRes1, arrRes2));
}
}
}
public static IEnumerable <Point3d> GetPointsFromPolylineWithPointWeeding([NotNull] this Database database, ObjectId id, [GreaterThan(.0)] double weeding)
{
// Weeding, we only add the point when weeding factor has been satisfied.
using (OpenCloseTransaction transAction = database.TransactionManager.StartOpenCloseTransaction())
{
object objectX = transAction.GetObject(id, OpenMode.ForRead);
switch (objectX.GetType().ToString())
{
case "Autodesk.AutoCAD.DatabaseServices.Polyline3d":
{
//Get a list of 3D points in parameter order
using (Polyline3d pl1 = (Polyline3d)objectX)
{
// We get curve here, its faster to get the
// parameters and point on a non database object
var curve = pl1.GetGeCurve(new Tolerance(1e-10, 1e-10));
// Initialize list with dimensions specified (speed)
var bounds = (int)Math.Ceiling(pl1.Length / weeding) + 1;
Point3d[] arrRes = new Point3d[bounds];
var arrCounter = 0;
for (double i = 0.0; i < pl1.Length; i += weeding)
{
var x = curve.EvaluatePoint(curve.GetParameterAtLength(0, i, true, 1e-10));
arrRes[arrCounter++] = x;
}
arrRes[arrCounter] = pl1.EndPoint;
transAction.Commit();
return(arrRes);
}
}
default: throw new Exception("\r\n\t=> Selected object is not supported for this function.");
}
}
}
