private void ExtendBack(IfcLineSegment2D segment, double length)
{
var dir = (segment.StartDirection + 180.0) * Math.PI / 180.0;
var dX = length * Math.Cos(dir);
var dY = length * Math.Sin(dir);
// adjust the point
segment.StartPoint.X += dX;
segment.StartPoint.Y += dY;
segment.SegmentLength += length;
}
public static Alignment CreateAlignmentFromIFC(string ifcFile)
{
Alignment aln = null;
Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
CivilDocument Cdoc = CivilApplication.ActiveDocument;
Editor ed = doc.Editor;
Database db = doc.Database;
ObjectId aln_id = ObjectId.Null;
ObjectId layerId = ObjectId.Null;
ObjectId aln_styleId = ObjectId.Null;
ObjectId profStyleId = ObjectId.Null;
ObjectId alnLabelSetId = ObjectId.Null;
ObjectId profLabelSetId = ObjectId.Null;
using (Transaction CADtrans = db.TransactionManager.StartTransaction())
{
BlockTable bt = (BlockTable)CADtrans.GetObject(db.BlockTableId, OpenMode.ForRead, false);
BlockTableRecord btr = (BlockTableRecord)CADtrans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite, false);
LayerTable acLyrTbl = CADtrans.GetObject(db.LayerTableId, OpenMode.ForRead) as LayerTable;
foreach (ObjectId id in acLyrTbl)
{
layerId = id;
break;
}
AlignmentStyleCollection style_col = Cdoc.Styles.AlignmentStyles;
if (style_col.Count > 0)
{
aln_styleId = style_col[0];
}
AlignmentLabelSetStyleCollection alignmentLabelSets = Cdoc.Styles.LabelSetStyles.AlignmentLabelSetStyles;
if (alignmentLabelSets.Count > 0)
{
alnLabelSetId = alignmentLabelSets[0];
}
aln_id = Alignment.Create(Cdoc, "Alingment_" + DateTime.Now.ToShortTimeString(), ObjectId.Null, layerId, aln_styleId, alnLabelSetId, AlignmentType.Centerline);
aln = CADtrans.GetObject(aln_id, OpenMode.ForRead) as Alignment;
int noOfSpiral = 0;
string str = string.Empty;
using (var model = IfcStore.Open(ifcFile))
{
var ifcAlignments = model.Instances.OfType <IfcAlignment>();
try
{
foreach (IfcAlignment algn in ifcAlignments)
{
IfcCurve cv = algn.Axis;
IfcAlignmentCurve algnCv = cv as IfcAlignmentCurve;
if (algnCv != null)
{
IfcAlignment2DHorizontal algn_hort = algnCv.Horizontal;
foreach (IfcAlignment2DHorizontalSegment seg in algn_hort.Segments)
{
IfcCurveSegment2D seg_2d = seg.CurveGeometry;
if (seg_2d.GetType() == typeof(IfcLineSegment2D))
{
//get ifc data
IfcLineSegment2D line = seg_2d as IfcLineSegment2D;
IfcCartesianPoint pt = line.StartPoint;
IfcPlaneAngleMeasure dir = line.StartDirection;//this is bearing angle
IfcPositiveLengthMeasure len = line.SegmentLength;
double angle = bearing2AutocadAngle(dir);
///create civil 3d line entity
//create point 1
Point3d pt1 = new Point3d(pt.X, pt.Y, 0);
//create point 2
double x = Math.Sin(angle) * len;
double y = Math.Cos(angle) * len;
Vector3d vector = new Vector3d(x, y, 0);
Matrix3d mat = Matrix3d.Displacement(vector);
Point3d pt2 = pt1.TransformBy(mat);
ed.WriteMessage("Crate line\n");
aln.Entities.AddFixedLine(aln.Entities.Count(), pt1, pt2);
}
if (seg_2d.GetType() == typeof(IfcTransitionCurveSegment2D))
{
noOfSpiral++;
IfcTransitionCurveSegment2D tran = seg_2d as IfcTransitionCurveSegment2D;
double rad = 0;
double startRadius = 0, endRadius = 0;
if (tran.StartRadius != null)
{
startRadius = tran.StartRadius.Value;
}
if (tran.EndRadius != null)
{
endRadius = tran.EndRadius.Value;
}
if (startRadius != 0 && endRadius == 0)
{
rad = startRadius;
}
else if (endRadius != 0 && startRadius == 0)
{
rad = endRadius;
}
IfcCartesianPoint pt = tran.StartPoint;
IfcPositiveLengthMeasure len = tran.SegmentLength;
bool IsEndRadiusCCW = false, IsStartRadiusCCW = false, isClockwise = false;
if (tran.IsEndRadiusCCW != null)
{
IsEndRadiusCCW = tran.IsEndRadiusCCW;
}
if (tran.IsStartRadiusCCW != null)
{
IsStartRadiusCCW = tran.IsStartRadiusCCW;
}
if (IsStartRadiusCCW == true)
{
isClockwise = IsStartRadiusCCW;
}
double dir = tran.StartDirection;
IfcTransitionCurveType tranType = tran.TransitionCurveType;
//determine if it in curve or out curve by no?
SpiralCurveType spiralCurveType = SpiralCurveType.InCurve;
if (noOfSpiral % 2 == 0)
{
spiralCurveType = SpiralCurveType.OutCurve;
}
if (tran.TransitionCurveType == IfcTransitionCurveType.CLOTHOIDCURVE)
{
ed.WriteMessage("Crate Transition Curve\n");
if (rad == 0)
{
aln.Entities.AddFixedSpiral(aln.Entities.Count(), startRadius, endRadius, len, Autodesk.Civil.SpiralType.Clothoid);
}
else if (startRadius != 0)
{
aln.Entities.AddFloatSpiral(aln.Entities.Count(), rad, len, isClockwise, Autodesk.Civil.SpiralType.Clothoid);
}
//aln.Entities.AddFixedSpiral(aln.Entities.Count(), rad, len, spiralCurveType, Autodesk.Civil.SpiralType.Clothoid);
}
}
if (seg_2d.GetType() == typeof(IfcCircularArcSegment2D))
{
IfcCircularArcSegment2D cir = seg_2d as IfcCircularArcSegment2D;
IfcPositiveLengthMeasure len = cir.SegmentLength;
IfcCartesianPoint pt = cir.StartPoint;
IfcPlaneAngleMeasure dir = cir.StartDirection;
IfcPositiveLengthMeasure rad = cir.Radius;
double angle = bearing2AutocadAngle(dir);
bool isCCW = (bool)cir.IsCCW;
Point3d startPt = new Point3d(pt.X, pt.Y, 0);
double x = Math.Sin(angle) * len;
double y = Math.Cos(angle) * len;
Vector3d vector = new Vector3d(x, y, 0);
//ed.WriteMessage("Crate circle Curve\n");
// aln.Entities.AddFixedCurve(startPt, vector, rad, isCCW);
}
if (seg_2d.GetType() == typeof(IfcCurveSegment2D))
{
IfcCurveSegment2D crv = seg_2d as IfcCurveSegment2D;
IfcPositiveLengthMeasure len = crv.SegmentLength;
IfcCartesianPoint pt = crv.StartPoint;
IfcPlaneAngleMeasure dir = crv.StartDirection;
}
}
#region >>>>=========== Create profile entities
// get the standard style and label set
// these calls will fail on templates without a style named "Standard"
ProfileStyleCollection prof_tyle_col = Cdoc.Styles.ProfileStyles;
if (prof_tyle_col.Count > 0)
{
profStyleId = prof_tyle_col[0];
}
ProfileLabelSetStyleCollection profilLabelSets = Cdoc.Styles.LabelSetStyles.ProfileLabelSetStyles;
if (profilLabelSets.Count > 0)
{
profLabelSetId = profilLabelSets[0];
}
ObjectId oProfileId = Profile.CreateByLayout("Profile", aln_id, layerId, profStyleId, profLabelSetId);
Profile PROF = CADtrans.GetObject(oProfileId, OpenMode.ForWrite) as Profile;
//get profile information from ifc
IfcAlignment2DVertical algn_vert = algnCv.Vertical;
foreach (IfcAlignment2DVerticalSegment seg in algn_vert.Segments)
{
if (seg.GetType() == typeof(IfcAlignment2DVerSegLine))
{
IfcAlignment2DVerSegLine line = seg as IfcAlignment2DVerSegLine;
double len = line.HorizontalLength;
double z = Convert.ToDouble(line.StartHeight.Value);
double slope = Convert.ToDouble(line.StartGradient.Value);
}
if (seg.GetType() == typeof(IfcAlignment2DVerSegParabolicArc))
{
IfcAlignment2DVerSegParabolicArc tran = seg as IfcAlignment2DVerSegParabolicArc;
double parabola = Convert.ToDouble(tran.ParabolaConstant);
bool isConvex = (bool)tran.IsConvex.Value;
double ch = Convert.ToDouble(tran.StartDistAlong);
double len = Convert.ToDouble(tran.HorizontalLength);
double z = Convert.ToDouble(tran.StartHeight.Value);
double slope = Convert.ToDouble(tran.StartGradient.Value);
}
if (seg.GetType() == typeof(IfcAlignment2DVerSegCircularArc))
{
IfcAlignment2DVerSegCircularArc cir = seg as IfcAlignment2DVerSegCircularArc;
double radius = Convert.ToDouble(cir.Radius);
bool isConvex = (bool)cir.IsConvex.Value;
double ch = Convert.ToDouble(cir.StartDistAlong);
double len = Convert.ToDouble(cir.HorizontalLength);
double z = Convert.ToDouble(cir.StartHeight.Value);
double slope = Convert.ToDouble(cir.StartGradient.Value);
}
//Point2d startPoint = new Point2d(station_start, H_start);
//Point2d endPoint = new Point2d(station_end, H_end);
//ProfileTangent oTangent = PROF.Entities.AddFixedTangent(startPoint, endPoint);
#endregion
}
}
}
}
catch { }
}
CADtrans.Commit();
}
return(aln);
}