Results 6 issues of David Hu

Assumption: There is no floating(isolated) vertex in the geometry.

The code is finally working. The result is shown below: ![pcl_to_mesh](https://user-images.githubusercontent.com/18122645/35542227-f0fceb9c-052c-11e8-95f5-cadf1639f3f0.png) I find this project is very challenging because I can't visualize the sparse matrix in Eigen as I used...

Both methods are working. The point-to-plane method is very fast, but the point-to-point method sometimes gets the source model stuck and can take a while to get out. Both methods...

Complete~