feat(core): add includedCategories option to IFCLoader

Author: agviegas

packages/core/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@thatopen/components",
   "description": "Collection of core functionalities to author BIM apps.",
-  "version": "2.1.18",
+  "version": "2.1.19",
   "author": "That Open Company",
   "contributors": [
     "Antonio Gonzalez Viegas (https://github.com/agviegas)",

packages/core/src/core/Components/index.ts

@@ -14,7 +14,7 @@ export class Components implements Disposable {
   /**
    * The version of the @thatopen/components library.
    */
-  static readonly release = "2.1.18";
+  static readonly release = "2.1.19";
 
   /** {@link Disposable.onDisposed} */
   readonly onDisposed = new Event<void>();

packages/core/src/fragments/IfcLoader/index.ts

@@ -228,9 +228,14 @@ export class IfcLoader extends Component implements Disposable {
       if (!this.webIfc.IsIfcElement(type) && type !== WEBIFC.IFCSPACE) {
         continue;
       }
-      if (this.settings.excludedCategories.has(type)) {
+
+      const included = this.settings.includedCategories;
+      if (included.size > 0 && !included.has(type)) {
+        continue;
+      } else if (this.settings.excludedCategories.has(type)) {
         continue;
       }
+
       const result = this.webIfc.GetLineIDsWithType(0, type);
       const size = result.size();
       for (let i = 0; i < size; i++) {

packages/core/src/fragments/IfcLoader/src/ifc-fragment-settings.ts

@@ -28,6 +28,9 @@ export class IfcFragmentSettings {
   /** List of categories that won't be converted to fragments. */
   excludedCategories = new Set<number>();
 
+  /** Exclusive list of categories that will be converted to fragments. If this contains any category, any other categories will be ignored. */
+  includedCategories = new Set<number>();
+
   /** Whether to save the absolute location of all IFC items. */
   saveLocations = false;