IFC file successfully parsed and loaded in Qt OpenGL widget

src/qtviewer/ParseIfcFile.h

@@ -4,14 +4,43 @@
 #include <QObject>
 #include <QString>
 #include <string>
+#include <vector>
+#include "../ifcgeom_schema_agnostic/IfcGeomIterator.h"
+#include "osg/Material"
+#include "osg/ref_ptr"
+#include "osg/Geometry"
+
+struct VertexWithNormal {
+    osg::Vec3 vertex;
+    osg::Vec3 normal;
+};
+
+struct Triangle {
+    VertexWithNormal vn1;
+    VertexWithNormal vn2;
+    VertexWithNormal vn3;
+};
 
 class ParseIfcFile : public QObject
 {
+
 public:
     ParseIfcFile();
     ~ParseIfcFile();
 
-    void Parse(const std::string& filePath);
+    bool Parse(
+        const std::string& filePath,
+        std::vector<osg::ref_ptr<osg::Geometry>>& geometries
+    );
+
+private:
+    std::vector<Triangle> createTriangles(
+            const std::vector<int>& elemFaces,
+            const std::vector<double>& elemVertices,
+            const std::vector<double>& elemNormals
+        );
+    osg::Vec4 getDefaultOsgDiffuseColor();
+    osg::ref_ptr<osg::Material> getOsgMaterial(const IfcGeom::Material& material);
 };
 
 #endif // PARSEIFCFILE_H