private static void Main(string[] args)
{
var database = new DatabaseIfc(ModelView.Ifc4X3NotAssigned);
database.Factory.ApplicationDeveloper = "Sebastian Esser";
// turn owner history off
database.Factory.Options.GenerateOwnerHistory = false;
// basic setup
var site = new IfcSite(database, "SiteA");
var project = new IfcProject(
site,
"SampleProject with a span annotation",
IfcUnitAssignment.Length.Metre
);
// create an annotation
var annotation = new IfcAnnotation(database)
{
Name = "DesignSpeed",
};
annotation.AddComment("Annotation item span-placed along the alignment");
// link annotation with site
var contained = new IfcRelContainedInSpatialStructure(site);
contained.RelatedElements.Add(annotation);
#region Alignment
var alignment = new IfcAlignment(site)
{
Name = "Basic alignment with a single horizontal segment"
};
alignment.AddComment("Generate alignment representation");
// semantic
var horizSegment = new IfcAlignmentHorizontalSegment(
new IfcCartesianPoint(database, 5, 10),
0,
0,
0,
200,
IfcAlignmentHorizontalSegmentTypeEnum.LINE);
// geometric representation of a single segment. It gets referenced by IfcCompositeCurve.segments and IfcAlignmentSegment.Representation
var curveSegment = new IfcCurveSegment(
IfcTransitionCode.CONTSAMEGRADIENTSAMECURVATURE,
new IfcAxis2Placement2D(new IfcCartesianPoint(database, 0, 0)),
new IfcParameterValue(0),
new IfcParameterValue(200),
null);
var segments = new List <IfcSegment> {
curveSegment
};
var compositeCurve = new IfcCompositeCurve(segments);
var rep = new IfcShapeRepresentation(compositeCurve)
{
RepresentationIdentifier = "Axis",
RepresentationType = "Curve2D"
};
alignment.Representation = new IfcProductDefinitionShape(rep);
alignment.Axis = compositeCurve;
// create an alignment horizontal instance that takes a list of horizontal segments
var alignmentHorizontal = new IfcAlignmentHorizontal(database)
{
Segments = new LIST <IfcAlignmentHorizontalSegment>()
{
horizSegment
}
};
// link alignment and and its horizontal part semantically
new IfcRelAggregates(alignment, alignmentHorizontal);
// create a new alignmentSegment with then gets one curve segment as its geometric representation
var alignmentSegment = new IfcAlignmentSegment(database);
// link horizontal alignment with the recently created alignment segment
new IfcRelNests(alignmentHorizontal, alignmentSegment); // sorted list -> IfcRelNests
// connect geom representation to this segment
alignmentSegment.Representation = new IfcProductDefinitionShape(new IfcShapeRepresentation(curveSegment));
#endregion Alignment
#region Annotation placement
alignmentSegment.AddComment("Create placement for annotation");
var axis2place = new IfcAxis2PlacementLinear(
new IfcPointByDistanceExpression(25, compositeCurve),
null,
null);
var linPlacement = new IfcLinearPlacement(axis2place);
linPlacement.Distance = new IfcPointByDistanceExpression(128, compositeCurve);
annotation.ObjectPlacement = linPlacement;
#endregion Annotation placement
#region PSet
//var lengthUnit = new IfcSIUnit(database, IfcUnitEnum.LENGTHUNIT, IfcSIPrefix.NONE, IfcSIUnitName.METRE);
var lengthDerivedUnit = new IfcSIUnit(database, IfcUnitEnum.LENGTHUNIT, IfcSIPrefix.KILO, IfcSIUnitName.METRE);
lengthDerivedUnit.AddComment("PSet setup");
var timeBaseUnit = new IfcSIUnit(database, IfcUnitEnum.TIMEUNIT, IfcSIPrefix.NONE, IfcSIUnitName.SECOND);
var timeDerivedUnit = new IfcConversionBasedUnit(IfcUnitEnum.TIMEUNIT, "hour", new IfcMeasureWithUnit(new IfcPositiveInteger(3600), timeBaseUnit));
var ifcderivedunitelem1 = new IfcDerivedUnitElement(lengthDerivedUnit, 1);
var ifcderivedunitelem2 = new IfcDerivedUnitElement(timeDerivedUnit, -1);
var speedUnit = new IfcDerivedUnit(
new List <IfcDerivedUnitElement> {
ifcderivedunitelem1, ifcderivedunitelem2
},
IfcDerivedUnitEnum.LINEARVELOCITYUNIT);
var pSet = new IfcPropertySet(annotation, "PSET_SpeedData", new List <IfcProperty>
{
new IfcPropertySingleValue(database, "CargoSpeed", new IfcLinearVelocityMeasure(60), speedUnit),
new IfcPropertySingleValue(database, "DesignSpeed", new IfcLinearVelocityMeasure(110), speedUnit)
});
#endregion PSet
database.WriteFile("AlignmentWithSpanAnnotation.ifc");
}
static void Main(string[] args)
{
DatabaseIfc db = new DatabaseIfc(ReleaseVersion.IFC4X3_RC2);
db.Factory.Options.AngleUnitsInRadians = false;
db.Factory.Options.GenerateOwnerHistory = false;
IfcRailway railway = new IfcRailway(db)
{
Name = "Default Railway", GlobalId = "2Iw5TO8gL8cQQMnPMEy58o"
};
IfcProject project = new IfcProject(railway, "Default Project", IfcUnitAssignment.Length.Metre)
{
GlobalId = "2VgFtp_1zCO98zJG_O3kln"
};
db.Factory.Options.GenerateOwnerHistory = true;
project.OwnerHistory = db.Factory.OwnerHistoryAdded;
db.Factory.Options.GenerateOwnerHistory = false;
IfcGeometricRepresentationSubContext axisSubContext = db.Factory.SubContext(IfcGeometricRepresentationSubContext.SubContextIdentifier.Axis);
IfcAlignment alignment = new IfcAlignment(railway)
{
Name = "TfNSW Alignment", GlobalId = "1F78QPlVv6N9AnnF$LSkp$"
};
IfcCartesianPoint alignmentOrigin = new IfcCartesianPoint(db, 0, 0, 0);
//IfcCartesianPoint alignmentOrigin = new IfcCartesianPoint(db, 1000, 2000, 3000);
alignment.ObjectPlacement = new IfcLocalPlacement(new IfcAxis2Placement3D(alignmentOrigin));
double lineLength = 100;
IfcCartesianPoint point1 = new IfcCartesianPoint(db, -lineLength, 0);
IfcCartesianPoint point2 = new IfcCartesianPoint(db, 0, 0);
double xc = 99.89734;
double radius = 500;
double transitionLength = 100;
double d = -0.75 * Math.Sqrt(3) * xc / radius;
double ang1 = (Math.Acos(-0.75 * Math.Sqrt(3) * xc / radius) * 180 / Math.PI / 3) + 240;
double thiRadians = Math.Asin(2 / Math.Sqrt(3) * Math.Cos(ang1 * Math.PI / 180));
double thi = thiRadians * 180 / Math.PI;
double m = Math.Tan(thiRadians) / (3 * xc * xc);
double yc = m * Math.Pow(xc, 3);
IfcCartesianPoint point3 = new IfcCartesianPoint(db, xc, yc);
double cx = Math.Sin(thiRadians) * radius;
double cy = Math.Cos(thiRadians) * radius;
IfcCartesianPoint arcCentre = new IfcCartesianPoint(db, xc - cx, yc + cy);
double arcLength = 100;
double arcAngle = arcLength / radius * 180 / Math.PI;
List <IfcSegment> compositeSegments = new List <IfcSegment>();
IfcLine xLine = new IfcLine(db.Factory.Origin2d, new IfcVector(new IfcDirection(db, 1, 0), 1));
IfcAlignmentHorizontalSegment linearSegment = new IfcAlignmentHorizontalSegment(point1, 0, 0, 0, lineLength, IfcAlignmentHorizontalSegmentTypeEnum.LINE);
IfcLine line = new IfcLine(point1, new IfcVector(db.Factory.XAxis, 1));
IfcTrimmedCurve trimmedCurve = new IfcTrimmedCurve(line, new IfcTrimmingSelect(0, point1), new IfcTrimmingSelect(lineLength, point2), true, IfcTrimmingPreference.PARAMETER);
compositeSegments.Add(new IfcCompositeCurveSegment(IfcTransitionCode.CONTINUOUS, true, trimmedCurve));
List <double> coefficientsX = new List <double>()
{
0, 1, 0, 0, 0, -0.9 * m * m, 0, 0, 0, 5.175 * Math.Pow(m, 4), 0, 0, 0, -43.1948 * Math.Pow(m, 6), 0, 0, 0, 426.0564 * Math.Pow(m, 8)
};
List <double> coefficientsY = new List <double>()
{
0, 0, 0, m, 0, 0, 0, -2.7 * Math.Pow(m, 3), 0, 0, 0, 17.955 * Math.Pow(m, 5), 0, 0, 0, -158.258 * Math.Pow(m, 7), 0, 0, 0, 1604.338 * Math.Pow(m, 9)
};
IfcSeriesParameterCurve seriesParameterCurve = new IfcSeriesParameterCurve(db.Factory.Origin2dPlace, coefficientsX, coefficientsY);
IfcAlignmentHorizontalSegment transitionSegment = new IfcAlignmentHorizontalSegment(point2, 0, 0, radius, transitionLength, IfcAlignmentHorizontalSegmentTypeEnum.CUBICSPIRAL); // { ObjectType = "TfNSW" };
trimmedCurve = new IfcTrimmedCurve(seriesParameterCurve, new IfcTrimmingSelect(0, point2), new IfcTrimmingSelect(transitionLength, point3), true, IfcTrimmingPreference.PARAMETER);
compositeSegments.Add(new IfcCompositeCurveSegment(IfcTransitionCode.CONTSAMEGRADIENTSAMECURVATURE, true, trimmedCurve));
IfcAxis2Placement2D circlePlacement = new IfcAxis2Placement2D(arcCentre)
{
RefDirection = new IfcDirection(db, Math.Sin(thiRadians), -Math.Cos(thiRadians))
};
IfcCircle circle = new IfcCircle(circlePlacement, radius);
trimmedCurve = new IfcTrimmedCurve(circle, new IfcTrimmingSelect(0, point3), new IfcTrimmingSelect(arcLength / radius * 180 / Math.PI), true, IfcTrimmingPreference.PARAMETER);
IfcAlignmentHorizontalSegment arcSegment = new IfcAlignmentHorizontalSegment(point3, thi, radius, radius, arcLength, IfcAlignmentHorizontalSegmentTypeEnum.CIRCULARARC);
compositeSegments.Add(new IfcCompositeCurveSegment(IfcTransitionCode.CONTSAMEGRADIENTSAMECURVATURE, true, trimmedCurve));
IfcCompositeCurve alignmentCurve = new IfcCompositeCurve(compositeSegments);
alignment.Axis = alignmentCurve;
double startDist = -123;
IfcAlignmentHorizontal alignmentHorizontal = new IfcAlignmentHorizontal(alignment, linearSegment, transitionSegment, arcSegment)
{
StartDistAlong = startDist,
};
alignmentHorizontal.GlobalId = "0sEEGBFgr289x9s$R$T7N9";
alignmentHorizontal.ObjectPlacement = alignment.ObjectPlacement;
alignmentHorizontal.Representation = new IfcProductDefinitionShape(new IfcShapeRepresentation(axisSubContext, alignmentCurve, ShapeRepresentationType.Curve2D));
IfcAlignmentSegment alignmentSegment = new IfcAlignmentSegment(alignmentHorizontal, transitionSegment);
alignmentSegment.GlobalId = "2_crD$eoPDah_QvgsPhXF3";
alignmentSegment.ObjectType = "TFNSW";
new IfcPropertySet(alignmentSegment, "TfNSW_Transition", new IfcPropertySingleValue(db, "m", m));
IfcPointByDistanceExpression verticalDistanceExpression = new IfcPointByDistanceExpression(0, alignmentCurve);
double startHeight = 25;
verticalDistanceExpression.OffsetVertical = startHeight;
IfcAlignmentVerticalSegment verticalSegment = new IfcAlignmentVerticalSegment(db, startDist, lineLength + transitionLength + arcLength, startHeight, 0.01, IfcAlignmentVerticalSegmentTypeEnum.CONSTANTGRADIENT);
IfcAlignmentVertical alignmentVertical = new IfcAlignmentVertical(alignment, verticalSegment);
alignmentVertical.GlobalId = "2YR0TUxTv75RC2XxZVmlj8";
//IfcLinearAxis2Placement verticalAxisPlacement = new IfcLinearAxis2Placement(verticalDistanceExpression);
//IfcLinearPlacement verticalLinearPlacement = new IfcLinearPlacement(alignmentPlacement, verticalAxisPlacement);
//alignmentVertical.ObjectPlacement = verticalLinearPlacement;
//List<IfcCurveSegment> verticalSegments = new List<IfcCurveSegment>();
//IfcLine linearGradient = new IfcLine(db.Factory.Origin, new IfcVector(new IfcDirection(db, 1, 0, 0.01), 1)); //not right and should it be xy or xz
//IfcCurveSegment verticalCurveSegment = new IfcCurveSegment(IfcTransitionCode.CONTINUOUS, new IfcAxis2Placement3D(db.Factory.Origin2d), 50, linearGradient);
//verticalSegments.Add(verticalCurveSegment);
//IfcAlignmentVerticalSegment verticalSegment = new IfcAlignmentVerticalSegment(alignmentVertical,
// verticalLinearPlacement, verticalCurveSegment, 0, 50, startHeight, 0.01,
// IfcAlignmentVerticalSegmentTypeEnum.LINE);
//IfcGradientCurve gradientCurve = new IfcGradientCurve(horizontalCurve, verticalSegments);
//alignment.Representation = new IfcProductDefinitionShape(new IfcShapeRepresentation(axisSubContext, gradientCurve, ShapeRepresentationType.Curve3D));
IfcPointByDistanceExpression distanceExpression = new IfcPointByDistanceExpression(150, alignmentCurve);
distanceExpression.OffsetLateral = 5;
IfcAxis2PlacementLinear axis2PlacementLinear = new IfcAxis2PlacementLinear(distanceExpression);
IfcLinearPlacement linearPlacement = new IfcLinearPlacement(alignment.ObjectPlacement, axis2PlacementLinear);
IfcExtrudedAreaSolid extrudedAreaSolid = new IfcExtrudedAreaSolid(new IfcRectangleProfileDef(db, "", 0.5, 0.5), 5);
IfcProductDefinitionShape productDefinitionShape = new IfcProductDefinitionShape(new IfcShapeRepresentation(extrudedAreaSolid));
IfcPile pile = new IfcPile(railway, linearPlacement, productDefinitionShape);
new IfcRelPositions(db, alignment, new List <IfcProduct>()
{
pile
});
// Conceptual 50m span Bridge from chainage -80
distanceExpression = new IfcPointByDistanceExpression(-80 - startDist, alignmentCurve);
axis2PlacementLinear = new IfcAxis2PlacementLinear(distanceExpression);
IfcCurveSegment curveSegment = new IfcCurveSegment(IfcTransitionCode.CONTINUOUS, axis2PlacementLinear, 50, alignmentCurve);
productDefinitionShape = new IfcProductDefinitionShape(new IfcShapeRepresentation(axisSubContext, curveSegment, ShapeRepresentationType.Curve2D));
IfcBridge bridge = new IfcBridge(railway, alignment.ObjectPlacement, productDefinitionShape);
db.WriteFile(args[0]);
}