top-down map visualization

[mathfac]

author @dhruvbatra:
Creating an issue so we don't forget.

We should include top-down map visualization.
v0: Static: showing just the occupied cells in the environment. Right now @abhiskk has a hacky solution, but in future this should be pulled in from habitat-sim. I created an issue there.
https://github.com/fairinternal/habitat-sim/issues/105

v1: Dynamic: showing agent progress in the navigation episode. This can use a lot of code from #131. @mathfac has a preliminary version of this visualization. We should add a flag to indicate the target.

v2: 3D top down map: like this
https://sites.google.com/view/scene-memory-transformer

[StOnEGiggity]

Hi, is there any plan for 3D top-down map visualization? like this
https://github.com/StanfordVL/GibsonEnv/blob/master/gibson/data/README.md.
or is that possible to give me brief advice to implement this? Thanks a lot.

[msbaines]

This is definitely something we've talked about implementing. I've open an issue in habitat-sim to track this: facebookresearch/habitat-sim#330

If you wanted to implement this yourself, you want to write a routine to draw an isometric projection of the scene with ceiling and front walls clipped. This is best implemented in habitat-sim.

[dhruvbatra]

@StOnEGiggity -- we will be very happy to provide feedback and support for implementing this. You can also join our Slack to directly ask questions:
https://aihabitat.org/#contact