1 files changed, 56 insertions, 0 deletions
diff --git a/src/export_png.cc b/src/export_png.cc
new file mode 100644
index 0000000..2d6a4a2
--- /dev/null
+++ b/src/export_png.cc
@@ -0,0 +1,56 @@
+#include "export.h"
+#include "printutils.h"
+#include "OffscreenView.h"
+#include "CsgInfo.h"
+#include <stdio.h>
+#include "polyset.h"
+
+#ifdef ENABLE_CGAL
+#include "CGALRenderer.h"
+#include "CGAL_renderer.h"
+#include "cgal.h"
+
+void export_png_with_cgal(CGAL_Nef_polyhedron *root_N, std::ostream &output)
+{
+	CsgInfo csgInfo;
+	try {
+		csgInfo.glview = new OffscreenView(512,512);
+	} catch (int error) {
+		fprintf(stderr,"Can't create OpenGL OffscreenView. Code: %i.\n", error);
+		return;
+	}
+	CGALRenderer cgalRenderer(*root_N);
+
+	BoundingBox bbox;
+	if (cgalRenderer.polyhedron) {
+		CGAL::Bbox_3 cgalbbox = cgalRenderer.polyhedron->bbox();
+		bbox = BoundingBox(
+		  Vector3d(cgalbbox.xmin(), cgalbbox.ymin(), cgalbbox.zmin()),
+		  Vector3d(cgalbbox.xmax(), cgalbbox.ymax(), cgalbbox.zmax())  );
+	}
+	else if (cgalRenderer.polyset) {
+		bbox = cgalRenderer.polyset->getBoundingBox();
+	}
+
+	Vector3d center = getBoundingCenter(bbox);
+	double radius = getBoundingRadius(bbox);
+
+	Vector3d cameradir(1, 1, -0.5);
+	Vector3d camerapos = center - radius*2*cameradir;
+	//std::cerr << center << "\n";
+	//std::cerr << radius << "\n";
+
+	csgInfo.glview->setCamera(camerapos, center);
+	csgInfo.glview->setRenderer(&cgalRenderer);
+	csgInfo.glview->paintGL();
+	csgInfo.glview->save(output);
+}
+
+void export_png_with_opencsg(CGAL_Nef_polyhedron *root_N, std::ostream &output)
+{
+	CsgInfo csgInfo;
+	PRINT("not implemented: solid OpenSCAD_Model opencsg png export\n");
+}
+
+
+#endif // ENABLE_CGAL