Thread-safe geosearch index with SIMD optimization (no Mercator projection, just plain Eucledian distances).

1. Detects if a point with radius intersects with geometries in index. Read-Write-Update cycle
2. Vectorised Ramer–Douglas–Peucker algorithm
3. Some lock free technics undehood (write-preferring readers–writer shared lock)
4. Optional: exchange data with Postgresql by triggering events

Install Eigen

Eigen is header only, this will install it in system include PATH Download Eigen from http://eigen.tuxfamily.org/index.php?title=Main_Page#Download Go to Eigen top directory

  mkdir build
  cd build
  cmake ..
  sudo make install