private IfcFooting CreateIfcFooting(IfcStore model, FootingBase cadFooting)
{
//cadFooting.Length *= 1000;
//cadFooting.Width *= 1000;
//cadFooting.CenterPt.X *= 1000;
//cadFooting.CenterPt.Y *= 1000;
//cadFooting.PtLengthDir.X *= 1000;
//cadFooting.PtLengthDir.Y *= 1000;
//
double length = cadFooting.Length;
double width = cadFooting.Width;
//begin a transaction
using (var trans = model.BeginTransaction("Create Footing"))
{
IfcFooting footingToCreate = model.Instances.New <IfcFooting>();
footingToCreate.Name = " Foundation - Footing:UC305x305x97: " + random.Next(1000, 10000);
//represent footing as a rectangular profile
IfcRectangleProfileDef rectProf = IFCHelper.RectProfileCreate(model, length, width);
//Profile Insertion Point
rectProf.ProfileInsertionPointSet(model, 0, 0);
//model as a swept area solid
IfcDirection extrusionDir = model.Instances.New <IfcDirection>();
extrusionDir.SetXYZ(0, 0, -1);
IfcExtrudedAreaSolid body = IFCHelper.ProfileSweptSolidCreate(model, cadFooting.Thickness, rectProf, extrusionDir);
//parameters to insert the geometry in the model
body.BodyPlacementSet(model, 0, 0, 0);
//Create a Definition shape to hold the geometry
IfcShapeRepresentation shape = IFCHelper.ShapeRepresentationCreate(model, "SweptSolid", "Body");
shape.Items.Add(body);
//Create a Product Definition and add the model geometry to the wall
IfcProductDefinitionShape prDefShape = model.Instances.New <IfcProductDefinitionShape>();
prDefShape.Representations.Add(shape);
footingToCreate.Representation = prDefShape;
//Create Local axes system and assign it to the wall
IfcCartesianPoint location3D = model.Instances.New <IfcCartesianPoint>();
location3D.SetXYZ(cadFooting.CenterPt.X, cadFooting.CenterPt.Y, cadFooting.CenterPt.Z);
var uvFootingLongDir = MathHelper.UnitVectorFromPt1ToPt2(cadFooting.CenterPt, cadFooting.PtLengthDir);
IfcDirection localXDir = model.Instances.New <IfcDirection>();
localXDir.SetXYZ(uvFootingLongDir.X, uvFootingLongDir.Y, uvFootingLongDir.Z);
IfcDirection localZDir = model.Instances.New <IfcDirection>();
localZDir.SetXYZ(0, 0, 1);
IfcAxis2Placement3D ax3D = IFCHelper.LocalAxesSystemCreate(model, location3D, localXDir, localZDir);
//now place the wall into the model
IfcLocalPlacement lp = IFCHelper.LocalPlacemetCreate(model, ax3D);
footingToCreate.ObjectPlacement = lp;
trans.Commit();
return(footingToCreate);
}
}
private IfcOpeningElement CreateIfcOpening(IfcStore model, Opening cadOpening, double thickness)
{
//cadOpening.CenterPt.X *= 1000;
//cadOpening.CenterPt.Y *= 1000;
//cadOpening.PtLengthDir.X *= 1000;
//cadOpening.PtLengthDir.Y *= 1000;
//cadOpening.Length *= 1000;
//cadOpening.Width *= 1000;
//
double length = cadOpening.Length;
double width = cadOpening.Width;
//begin a transaction
using (var trans = model.BeginTransaction("Create Opening"))
{
IfcOpeningElement openingToCreate = model.Instances.New <IfcOpeningElement>();
openingToCreate.Name = " Openings - Openings:UC305x305x97:" + random.Next(1000, 10000);
//represent wall as a rectangular profile
IfcRectangleProfileDef rectProf = IFCHelper.RectProfileCreate(model, length, width);
//Profile insertion point
rectProf.ProfileInsertionPointSet(model, 0, 0);
var insertPoint = model.Instances.New <IfcCartesianPoint>();
insertPoint.SetXYZ(0, 0, cadOpening.CenterPt.Z); //insert at arbitrary position
rectProf.Position = model.Instances.New <IfcAxis2Placement2D>();
rectProf.Position.Location = insertPoint;
//model as a swept area solid
IfcDirection extrusionDir = model.Instances.New <IfcDirection>();
extrusionDir.SetXYZ(0, 0, -1);
IfcExtrudedAreaSolid body = IFCHelper.ProfileSweptSolidCreate(model, thickness, rectProf, extrusionDir);
//parameters to insert the geometry in the model
body.BodyPlacementSet(model, 0, 0, 0);
//Create a Definition shape to hold the geometry
IfcShapeRepresentation shape = IFCHelper.ShapeRepresentationCreate(model, "SweptSolid", "Body");
shape.Items.Add(body);
//Create a Product Definition and add the model geometry to the opening
IfcProductDefinitionShape prDefRep = model.Instances.New <IfcProductDefinitionShape>();
prDefRep.Representations.Add(shape);
openingToCreate.Representation = prDefRep;
//Create Local axes system and assign it to the column
IfcCartesianPoint location3D = model.Instances.New <IfcCartesianPoint>();
location3D.SetXYZ(cadOpening.CenterPt.X, cadOpening.CenterPt.Y, cadOpening.CenterPt.Z);
var uvColLongDir = MathHelper.UnitVectorFromPt1ToPt2(cadOpening.CenterPt, cadOpening.PtLengthDir);
IfcDirection localXDir = model.Instances.New <IfcDirection>();
localXDir.SetXYZ(uvColLongDir.X, uvColLongDir.Y, uvColLongDir.Z);
IfcDirection localZDir = model.Instances.New <IfcDirection>();
localZDir.SetXYZ(0, 0, 1);
IfcAxis2Placement3D ax3D = IFCHelper.LocalAxesSystemCreate(model, location3D, localXDir, localZDir);
//now place the wall into the model
//now place the wall into the model
IfcLocalPlacement lp = IFCHelper.LocalPlacemetCreate(model, ax3D);
openingToCreate.ObjectPlacement = lp;
//commit transaction
trans.Commit();
return(openingToCreate);
}
}
/// <summary>
/// This creates a wall and it's geometry, many geometric representations are possible and extruded rectangular footprint is chosen as this is commonly used for standard case walls
/// </summary>
/// <param name="model"></param>
/// <param name="length">Length of the rectangular footprint</param>
/// <param name="width">Width of the rectangular footprint (width of the wall)</param>
/// <param name="height">Height to extrude the wall, extrusion is vertical</param>
/// <returns></returns>
private IfcWallStandardCase CreateIfcWall(IfcStore model, Wall cadWall, double height)
{
//cadWall.Thickness *= 1000;
//cadWall.StPt.X *= 1000;
//cadWall.StPt.Y*= 1000;
//cadWall.EndPt.X *= 1000;
//cadWall.EndPt.Y *= 1000;
//dimensions of the new IFC Wall we want to create
double length = Math.Abs(cadWall.EndPt.X - cadWall.StPt.X) > 0 ? Math.Abs(cadWall.EndPt.X - cadWall.StPt.X) : Math.Abs(cadWall.EndPt.Y - cadWall.StPt.Y);
double width = cadWall.Thickness;
//begin a transaction
using (var trans = model.BeginTransaction("Create Wall"))
{
IfcWallStandardCase wallToCreate = model.Instances.New <IfcWallStandardCase>();
wallToCreate.Name = " Wall - Wall:UC305x305x97:" + random.Next(1000, 10000);
//represent wall as a rectangular profile
IfcRectangleProfileDef rectProf = IFCHelper.RectProfileCreate(model, length, width);
//Profile Insertion Point
rectProf.ProfileInsertionPointSet(model, 0, 0);
//model as a swept area solid
IfcDirection extrusionDir = model.Instances.New <IfcDirection>();
extrusionDir.SetXYZ(0, 0, -1);
IfcExtrudedAreaSolid body = IFCHelper.ProfileSweptSolidCreate(model, height, rectProf, extrusionDir);
//parameters to insert the geometry in the model
body.BodyPlacementSet(model, 0, 0, 0);
//Create a Definition shape to hold the geometry of the wall 3D body
IfcShapeRepresentation shape = IFCHelper.ShapeRepresentationCreate(model, "SweptSolid", "Body");
shape.Items.Add(body);
//Create a Product Definition and add the model geometry to the wall
IfcProductDefinitionShape prDefShape = model.Instances.New <IfcProductDefinitionShape>();
prDefShape.Representations.Add(shape);
wallToCreate.Representation = prDefShape;
//Create Local axes system and assign it to the wall
var midPt = MathHelper.MidPoint3D(cadWall.StPt, cadWall.EndPt);
IfcCartesianPoint location3D = model.Instances.New <IfcCartesianPoint>();
location3D.SetXYZ(midPt.X, midPt.Y, midPt.Z);
var uvWallLongDir = MathHelper.UnitVectorFromPt1ToPt2(cadWall.StPt, cadWall.EndPt);
IfcDirection localXDir = model.Instances.New <IfcDirection>();
localXDir.SetXYZ(uvWallLongDir.X, uvWallLongDir.Y, uvWallLongDir.Z);
IfcDirection localZDir = model.Instances.New <IfcDirection>();
localZDir.SetXYZ(0, 0, 1);
IfcAxis2Placement3D ax3D = IFCHelper.LocalAxesSystemCreate(model, location3D, localXDir, localZDir);
//now place the wall into the model
IfcLocalPlacement lp = IFCHelper.LocalPlacemetCreate(model, ax3D);
wallToCreate.ObjectPlacement = lp;
// IfcPresentationLayerAssignment is required for CAD presentation in IfcWall or IfcWallStandardCase
var ifcPresentationLayerAssignment = model.Instances.New <IfcPresentationLayerAssignment>();
ifcPresentationLayerAssignment.Name = "some ifcPresentationLayerAssignment";
ifcPresentationLayerAssignment.AssignedItems.Add(shape);
trans.Commit();
return(wallToCreate);
}
}