Best Point Cloud Viewer

http://www.danielgm.net/cc/release/

How to install:
https://github.com/cloudcompare/trunk/blob/master/BUILD.md


Needed to manually specify the Qt locations:
QT5_ROOT_PATH: /Users/liangzou/Qt/5.7/clang_64/lib/cmake
QT5_Concurrent_DIR: /Users/liangzou/Qt/5.7/clang_64/lib/cmake/Qt5Concurrent
...

Need to install to build: Qt5.7 and libqt5opengl5-dev

OPTION_BUILD_CCVIEWER should be FALSE.

The default installation location is /usr/local.
After running:
sudo make install, you can go to /usr/local/bin/CloudCompare and open the application.

Common issues:
How to install the latest QT?
https://www1.qt.io/download-open-source/#section-3
Run with sudo qt-opensource-linux-x64-5.9.2.run to install it in /opt/Qt5.9.2

How to fix libQt5Concurrent.so.5: cannot open shared object file: No such file or directory?
Add export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/Qt5.9.2/5.9.2/gcc_64/lib

Also need to build with LAS library support.
Download and install liblas.
https://liblas.org/download.html

This requires boost, which can be provided by using our own precompiled boost library.

So need to fill:
LIBLAS_INCLUDE_DIR: /usr/local/include/liblas
LIBLAS_RELEASE_LIBRARY_FIELD: /usr/local/lib/liblas.so
Boost_INCLUDE_DIR: /home/liangzou/gitreview/deepmap/bazel-deepmap/external/precompiled_boost/linux/include