public IfcColourRgb(IfcLabel?__Name, IfcNormalisedRatioMeasure __Red, IfcNormalisedRatioMeasure __Green, IfcNormalisedRatioMeasure __Blue)
: base(__Name)
{
this.Red = __Red;
this.Green = __Green;
this.Blue = __Blue;
}
/// <summary>
/// Write the model to IFC.
/// </summary>
/// <param name="model"></param>
/// <param name="path">The path to the generated IFC STEP file.</param>
internal static void ToIFC(Model model, string path)
{
var ifc = new Document("Elements", "Elements", Environment.UserName,
null, null, null, "Elements", null, null,
null, null, null, null, null, null
);
var proj = ifc.AllInstancesOfType <IfcProject>().FirstOrDefault();
// Add a site
var site = new IfcSite(IfcGuid.ToIfcGuid(Guid.NewGuid()),
null,
"Hypar Site",
"The default site generated by Hypar",
null,
null,
null,
null,
IfcElementCompositionEnum.ELEMENT,
new IfcCompoundPlaneAngleMeasure(new List <int> {
0, 0
}),
new IfcCompoundPlaneAngleMeasure(new List <int> {
0, 0
}),
0,
null,
null);
var projAggregate = new IfcRelAggregates(IfcGuid.ToIfcGuid(Guid.NewGuid()), proj, new List <IfcObjectDefinition> {
site
});
// Add building and building storey
var building = new IfcBuilding(IfcGuid.ToIfcGuid(Guid.NewGuid()),
null,
"Default Building",
"The default building generated by Hypar.",
null,
null,
null,
null,
IfcElementCompositionEnum.ELEMENT,
0,
0,
null);
var storey = new IfcBuildingStorey(IfcGuid.ToIfcGuid(Guid.NewGuid()),
null,
"Default Storey",
"The default storey generated by Hypar",
null,
null,
null,
null,
IfcElementCompositionEnum.ELEMENT,
0);
var aggregate = new IfcRelAggregates(IfcGuid.ToIfcGuid(Guid.NewGuid()), building, new List <IfcObjectDefinition> {
storey
});
// Aggregate the building into the site
var siteAggregate = new IfcRelAggregates(IfcGuid.ToIfcGuid(Guid.NewGuid()), site, new List <IfcObjectDefinition> {
building
});
ifc.AddEntity(site);
ifc.AddEntity(projAggregate);
ifc.AddEntity(building);
ifc.AddEntity(storey);
ifc.AddEntity(aggregate);
ifc.AddEntity(siteAggregate);
var products = new List <IfcProduct>();
var context = ifc.AllInstancesOfType <IfcGeometricRepresentationContext>().FirstOrDefault();
// IfcRelAssociatesMaterial
// IfcMaterialDefinitionRepresentation
// https://forums.buildingsmart.org/t/where-and-how-will-my-colors-be-saved-in-ifc/1806/12
var styleAssignments = new Dictionary <Guid, List <IfcStyleAssignmentSelect> >();
var white = Colors.White.ToIfcColourRgb();
ifc.AddEntity(white);
// TODO: Fix color support in all applications.
// https://forums.buildingsmart.org/t/why-is-it-so-difficult-to-get-colors-to-show-up/2312/12
foreach (var m in model.AllElementsOfType <Material>())
{
var material = new IfcMaterial(m.Name, null, "Hypar");
ifc.AddEntity(material);
var color = m.Color.ToIfcColourRgb();
ifc.AddEntity(color);
var transparency = new IfcNormalisedRatioMeasure(1.0 - m.Color.Alpha);
var shading = new IfcSurfaceStyleShading(color, transparency);
ifc.AddEntity(shading);
var styles = new List <IfcSurfaceStyleElementSelect> {
new IfcSurfaceStyleElementSelect(shading),
};
var surfaceStyle = new IfcSurfaceStyle(material.Name, IfcSurfaceSide.BOTH, styles);
ifc.AddEntity(surfaceStyle);
var styleAssign = new IfcStyleAssignmentSelect(surfaceStyle);
var assignments = new List <IfcStyleAssignmentSelect>()
{
styleAssign
};
styleAssignments.Add(m.Id, assignments);
}
foreach (var e in model.Elements.Values.Where(e =>
{
var t = e.GetType();
return(((e is GeometricElement &&
!((GeometricElement)e).IsElementDefinition) || e is ElementInstance) &&
t != typeof(ModelCurve) &&
t != typeof(ModelPoints) &&
t != typeof(AnalysisMesh));
}))
{
try
{
products.AddRange(e.ToIfcProducts(context, ifc, styleAssignments));
}
catch (Exception ex)
{
Console.WriteLine($"There was an error writing an element of type {e.GetType()} to IFC: " + ex.Message);
Console.WriteLine(ex.StackTrace);
continue;
}
}
var spatialRel = new IfcRelContainedInSpatialStructure(IfcGuid.ToIfcGuid(Guid.NewGuid()), products, storey);
ifc.AddEntity(spatialRel);
if (File.Exists(path))
{
File.Delete(path);
}
File.WriteAllText(path, ifc.ToSTEP(path));
}
