maptile-qc

A little node tool to check a tile cache for missing or invalid tiles

Requirements

• ImageMagick (this is dependency for the nodejs module gm http://aheckmann.github.io/gm/)

Usage

Generates a csv and geojson file reporting details about a tile cache at sampled locations and specified zoom levels.

-t, --tilecache

tile cache directory

-o, --outputfile

outputfile without extension

-c, --cellsize

distance between sample points in sample grid

-r, --zoomrange

comma delimited range of zoom levels to sample e.g. "2,10" (no spaces)

-e, --extent

sample extent: xmin,ymin,xmax,ymax

-f, --samplefile

a geojson file with sample locations to use instead of generating a point grid

-h, --help

display this help

EXAMPLES:

generated sample grid requires a cell size and extent:

$ maptile-qc -t ~/my_tile_cache -o ~/temp/outputfile -c 0.05 -r 2,10 -e -122,36,-120,37

sample data loaded from a geojson file:

$ maptile-qc -t ~/my_tile_cache -o ~/temp/outputfile -r 2,10 -f '~/samplepoints.geojson'