Merge branch 'release/0.0.4'

Author: BalintBende

README.md

@@ -2,12 +2,12 @@
 
 The `xeokit-metadata` is a multi-platform command line tool for extracting
 the structural hierarchy of the building elements within an `IFC` into the
-[metadata format of the `xeokit-sdk`][0]. Currently only IFC 2x3 is supported.
+[metadata format of the `xeokit-sdk`][0].
 
 ## Usage
 
 ```
-$ wget --quiet https://github.com/bimspot/xeokit-metadata/releases/download/0.0.3/xeokit-metadata-linux-x64.tar.gz
+$ wget --quiet https://github.com/bimspot/xeokit-metadata/releases/download/0.0.4/xeokit-metadata-linux-x64.tar.gz
 $ tar -zxvf xeokit-metadata-linux-x64.tar.gz
 $ chmod +x xeokit-metadata-linux-x64/xeokit-metadata
 $ ln -s /absolute/path/to/xeokit-metadata-linux-x64/xeokit-metadata /usr/local/bin/xeokit-metadata

xeokit/xeokit-metadata/MetaModel.cs

@@ -96,13 +96,14 @@ public static MetaModel fromIfc(string ifcPath) {
     ///   IIfcObjectDefinition.
     /// </returns>
     private static List<MetaObject> extractHierarchy(IIfcObjectDefinition
-      objectDefinition) {
+      objectDefinition, string parentId=null) {
       var metaObjects = new List<MetaObject>();
 
       var parentObject = new MetaObject {
         id = objectDefinition.GlobalId,
         name = objectDefinition.Name,
-        type = objectDefinition.GetType().Name
+        type = objectDefinition.GetType().Name,
+        parent = parentId
       };
 
       metaObjects.Add(parentObject);
@@ -130,7 +131,7 @@ private static List<MetaObject> extractHierarchy(IIfcObjectDefinition
         .SelectMany(r => r.RelatedObjects);
 
       foreach (var item in relatedObjects) {
-        var children = extractHierarchy(item);
+        var children = extractHierarchy(item, parentObject.id);
         metaObjects.AddRange(children);
       }