xiaomaoo

Results 2 issues of xiaomaoo

When I press the key '9' , StopScanningAndExtractIsoSurfaceMC() will be excuted. But it seems only genetate current local map, Why? How to generate global .ply Mesh file? ![snapshot00](https://user-images.githubusercontent.com/25716233/49875175-5406a200-fe5b-11e8-9e83-bbd617ccc8fa.png)

I can see the reconstructed map using " visualize_map.py " in the open3d window How can I save the map as a .ply file ?