Describe the bug

Documentation says flann version 1.7.1 is minimum required. The least tested version of flann on the CI is 1.8.4:

$ docker run --rm -it ubuntu:16.04 bash
$ apt update
$ apt search libflann
Sorting... Done
Full Text Search... Done
libflann-dev/xenial 1.8.4-4.1 amd64
  Fast Library for App

Hello,

I have learned corto(vclab) and other mesh compression library.I have read some papers such as Edgebreaker: Connectivity compression for triangle meshes and Edge breaker on a Corner Table : A simple technique for representing and compressing triangulated surfaces.However draco code seems more complexity than below projects and papers.Is there technical papers or algorithm documents w

I'm working with Open3D with data from different devices. One of them does not provide the point cloud as a file, so I am creating the file by myself with a little Python script.

However, I am confused by the supported formats:
The pts format contains lines of [x, y, z, i, r, g, b]. xyz and rgb are intuitive and explained, but what exactly is the i for? And in what format is it exp

split-merge either needs GPS info or a image_groups.txt file to split a dataset.

Otherwise it cannot work. The program should help users understand that instead of failing with :

OpenCV Error: Assertion failed (data0.dims <= 2 && type == CV_32F && K > 0) in kmeans, file /code/SuperBuild/src/opencv/modules/core/src/matrix.cpp, line 2701
Traceback (most recent call last):
  File "/cod

An extra null pointer check is not needed in functions like the following.

• LEdge
• [Range_tree_1](https://githu

In 'pointnet2/scannet/preprocessing/collect_scannet_scenes.py' line #17, we refer to 'scannet_all.txt' file. It would be helpful if you guide where to get or how to generate this file?

Describe the bug

The Reset button in the display options does not reset the button colours

How to reproduce

1. click the "Points" button in the Colors and Materials section
2. change the colour
3. the button changes to that colour
4. click the Reset button at the bottom

The "Points" button colour does not change back to the original colour.

*Expected behaviour

Specifications like the version of the project, operating system, and hardware

Building OpenMVS on MacOS Sierra

Steps to reproduce the problem

Please Make the changes mentioned above so that it becomes clear that the path where vcglib is downloaded maybe anywhere on the system.

Good improvements would include:

• Allow a user to add orthophoto, plant health and DEMs at the same time
• Better transparency controls in layers panel
• Allow Z re-ordering of layers

@chris-little's feedback from CesiumGS/3d-tiles#405:

Can tilesets be nested hierarchically? I'm not sure from the text.
Can a tile can be "in" more than one tileset? I'm not sure how, but presumbly URIs allow this.

The answers are "yes" and "yes" but they could be clarified in the reference card.