tilereduce-test

Number of features

Count number of features

• per tile
• per layer

node num-features.js

Output

Starting up 8 workers... Job started.
Processing 4 tiles.
4 tiles processed in 0s.
Number of features: { water: 31,
  landuse: 49,
  mountain_peak: 120,
  park: 16,
  boundary: 713,
  transportation: 106,
  transportation_name: 6,
  place: 20,
  waterway: 6 }

Compare number of features

Compare number of features between two mbtiles files

• per tile
• per layer

node num-features-diff.js

Output

Starting up 8 workers... Job started.
Processing 4 tiles.
4 tiles processed in 0s.
Number of differences: { water: { '+': 7 },
  park: { '+': 6 },
  transportation: { '+': 364 } }