Space Mouse support

[forrestjgq]

Space mouse designed by 3Dconnexion is quite useful for 3D navigating. I've implemented that in my own branch by using a thirdparty library libspnav for both gui SceneWidget and Visualizer. It works fine.

I wonder if it's necessary to submit a PR to support this feature?

[forrestjgq]

Code reference of my own branch:
forrestjgq#10
forrestjgq#11

[olagt]

Hi @forrestjgq I tried your fork branch "lego15" , with the latest set spacenavd, libspnav,spnavcfg . It looks like my spacemouse itself is working correctly, however open3d doesn't react on any movement :( I tried Visualizer from examples and ViewGeometry. I also compiled my program against your fork, based on denseSLAMGUI where widget3d is used for 3d display , also with no avail :(
Any ideas or clues what I'm doing wrong ?

this->widget3d_->GetScene()->GetScene();
scene->AddGeometry("points", *pointcloud_ptr2 ,mat);

[forrestjgq]

@olagt Have you started spacenavd?
sudo /etc/init.d/spacenavd start

you may:

1. check if libspnav examples to see if service daemon is started correctly, it's in libspnav/examples/cube
2. check the cmake printing, there should be Using installed third-party library 3rdparty_spnav printed, the open3d should be cleaned and built after spacenavd/libspnav is installed
3. lego15 branch use socket to connect to spnavd, once connect fails at starting, it won't retry. You could add some logs here: https://github.com/forrestjgq/Open3D/blob/lego15/cpp/open3d/visualization/utility/SpaceMouse.cpp#L52, build and try again
4. I always use Open3D program to load any ply, set in arcball mode to try. make Open3dViewer && ./bin/Open3D/Open3D

[olagt]

@forrestjgq Thank you for great guidance ! I followed the steps and my space mouse is working great.

[meyerjo]

Would be nice to see this feature in open3d

[olagt]

Hi @forrestjgq , do you plan to make PR to current 0.16 of your great support for SpaceMouse ?
I really miss this functionally in Open3D :(
Kind regards

Ola