Config

Required entities

The first thing we are going to configure is the required entities. These three should do fine.

var requiredEntities = {
    IFCPROPERTYSINGLEVALUE: "IfcPropertySingleValue",
    IFCRELDEFINESBYPROPERTIES: "IfcRelDefinesByProperties",
    IFCPROPERTYSET: "IfcPropertySet",
};

Notice how the object is structured. The key must be in uppercase. The value can have any form.

Selected Entities

There's no need to get all IfcEntities. Let's specify which entities we want.

var selectedEntities = {
    IFCDOOR: "IfcDoor",
    IFCWALLSTANDARDCASE: "IfcWallStandardCase",
};

Our sample file has only a door and a wall. It would be unnecessary to try to get the roofs, floors, windows, etc.

A list of common Ifc Entites can be found here:

IFCSHAREDBLDGELEMENTSstandards.buildingsmart.org

Selected Property Set

Also, there's no need to get all Property Sets. Let's specify which we want. Leave the array blank to include all Property Sets.

var selectedPropertySets = ["Custom_Pset"];

Notice how the object is structured.

This is an array, not an object.

All Entities

var allEntities = {
    ...requiredEntities,
    ...selectedEntities,
};

The spread operator can be used to join the two arrays

Config Object

Our final config object is constructed as:

var config = {
    requiredEntities,
    selectedEntities,
    selectedPropertySets,
    allEntities
};