static void Main(string[] args)
{
var ut_name = "Alignment-TUMAdsk-1";
var db = new DatabaseIfc(ModelView.Ifc4X3NotAssigned);
db.Factory.Options.GenerateOwnerHistory = false;
var site = new IfcSite(db, "site");
var project = new IfcProject(db, ut_name)
{
Name = ut_name,
Description = "sample for a single horizontal line segment - geometry + semantic part"
};
new IfcRelAggregates(project, new List <IfcObjectDefinition>()
{
site
});
// alignment
var alignment = new IfcAlignment(site);
alignment.AddComment("Entry point for alignment container");
var horiz = new IfcAlignmentHorizontal(alignment);
horiz.AddComment("groups all horizontal segments using an IfcRelNests rel");
var pt1 = new IfcCartesianPoint(db, 3, 1, 0);
var semanticPartOfTheSegment = new IfcAlignmentHorizontalSegment(
pt1,
0,
0,
0,
56.4,
IfcAlignmentHorizontalSegmentTypeEnum.LINE);
semanticPartOfTheSegment.AddComment("Semantic part of the line segment");
var semanticSegment1 = new IfcAlignmentSegment(horiz, semanticPartOfTheSegment);
semanticSegment1.AddComment("link semantic segment with horizontal alignment container");
// build geometric part
var line = new IfcLine(pt1, new IfcVector(new IfcDirection(db, 0, 0), 1));
line.AddComment("line geometry");
var curveSeg = new IfcCurveSegment(IfcTransitionCode.CONTINUOUS, new IfcAxis1Placement(pt1), new IfcNonNegativeLengthMeasure(0), new IfcNonNegativeLengthMeasure(56.4), line);
curveSeg.AddComment("Trim the entire line");
var shapeRep = new IfcShapeRepresentation(curveSeg, ShapeRepresentationType.Curve2D);
IfcProductDefinitionShape shape1 = new IfcProductDefinitionShape(shapeRep)
{
Name = "Horizontal alignment geom rep"
};
shape1.AddComment("link the geometric rep of a line to the representation of the horizontal segment");
horiz.Representation = shape1;
db.WriteFile(ut_name + ".ifc");
}
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");
}
