예제 #1
0
        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");
        }
예제 #2
0
        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]);
        }