Add geometry database (.rdbview) export to IfcViewerFull

Wire a new "Export Geometry Database" tool button in AddModelDialog, adjacent to "Convert IFC File to Database", to produce a zipped read-only artifact combining a lossy RDB (with IfcRepresentationItem stripped) and a .ifcview geometry sidecar. Intended for cloud coordination workflows where parametric geometry editing is not needed. Pipeline changes to support this: - document_serializer_context gains a `skip_supertypes` field; the rdb plugin forwards it to RocksDbSerializer so the same registry path produces full or lossy RDBs. - Vertex quantization helpers (octEncodeNormal + quantizeVertex) move out of ViewportWindow.cpp into a shared header so the sidecar's byte layout stays identical regardless of whether it came from a GPU readback or a CPU pipeline. - New HeadlessSidecarBuilder runs a GeometryStreamer on the calling thread, captures MeshChunk/InstanceChunk into a SidecarData on the CPU, then computes georef + packed elements + LODs and writes the .ifcview — no ViewportWindow or GL context required. The Controller's export flow runs RDB conversion + sidecar build + QZipWriter packaging on a background QThread, writing through `<dest>.tmp` then renaming for atomic appearance in cloud-sync folders. ifcviewer-full now links Qt6::CorePrivate for QZipWriter. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-09-28 11:18:18 +00:00 · 2026-05-15 11:54:14 +10:00
parent 56273de443
commit fed739847e
11 changed files with 575 additions and 48 deletions
@@ -0,0 +1,60 @@
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell is distributed in the hope that it will be useful,              *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+
+#ifndef HEADLESSSIDECARBUILDER_H
+#define HEADLESSSIDECARBUILDER_H
+
+#include "InstancedGeometry.h"
+#include "SidecarCache.h"
+
+#include <QObject>
+#include <QString>
+
+// Produces a .ifcview sidecar from an IFC file without touching the
+// ViewportWindow or any GL state.  Mirrors the data path that
+// SceneLoader + ViewportWindow + ModelsPanelController.writeSidecarForModel
+// take for live loads, but does the vertex quantization and SidecarData
+// assembly entirely on the CPU.
+//
+// Threading: call ::build() from a non-GUI worker thread that has a Qt
+// event dispatcher (e.g. the thread spawned by QThread::create).  build()
+// spins a local QEventLoop until the streamer's worker thread completes.
+class HeadlessSidecarBuilder : public QObject {
+    Q_OBJECT
+public:
+    explicit HeadlessSidecarBuilder(QObject* parent = nullptr);
+
+    // `anchor_path` is fed to writeSidecar(), which normalises it to
+    // `<stem(anchor_path)>.ifcview`.  Pass either the IFC path itself
+    // (sidecar lands beside it) or a temp path whose stem you control.
+    bool build(const QString& ifc_path,
+               const QString& anchor_path,
+               int num_threads = 0);
+
+    const QString& lastError() const { return last_error_; }
+
+private:
+    void onMeshReady(const MeshChunk& chunk);
+    void onInstanceReady(const InstanceChunk& chunk);
+
+    SidecarData sidecar_data_;
+    QString     last_error_;
+};
+
+#endif // HEADLESSSIDECARBUILDER_H