##Geojson-report
For quick analysis of geojson files.
###How to use
####Download this repository
git clone https://github.com/idris-maps/Geojson-report.git
####Download dependencies
There is only one: underscore.
cd Geojson-report
npm install
####Open run.js
Require 'lib/report' and your geojson. Choose the type of report.
It works like this:
report(<collection>, <query>, callback)
<collection> is the 'FeatureCollection' of your geojson file
<query> is the kind of report (geo, props or key) you are looking for (see below)
The result is a callback so you can choose if you want to save it to a file or just log it
####Examples
These are examples from an OSM file converted with osmtogeojson
#####For a list of geometry types:
report(collection, 'geo', function(response) {
console.log(response)
})
returns:
{ nb: 4,
types:
[ { type: 'Polygon', count: 10348 },
{ type: 'MultiPolygon', count: 3 },
{ type: 'LineString', count: 8059 },
{ type: 'Point', count: 11577 } ] }
nb is the number of geometry types in your document
Then you have the number of features by type
#####For a list of all the properties:
report(collection, 'props', function(response) {
console.log(response)
})
returns
[ '3dr:type',
'3dr_dormer',
'3dr_type',
'CEMT',
'FIXME',
'Geek_Quotient',
'TMC:cid_58:tabcd_1:Class',
'TMC:cid_58:tabcd_1:Direction',
'TMC:cid_58:tabcd_1:LCLversion',
'TMC:cid_58:tabcd_1:LocationCode',
'TMC:cid_58:tabcd_1:NextLocationCode',
'TMC:cid_58:tabcd_1:PrevLocationCode',
'^roof:shape',
'abandoned:railway',
'access',
'access:condition',
'access:conditional',
'access:customer',
'access:lanes',
'access:lanes:backward',
'access:lanes:forward',
'access:vehicle',
[...]
'wifi:limit',
'wikidata',
'wikimedia_commons',
'wikipedia',
'wikipedia_1',
'wires',
'workrules',
'xmas:day_date',
'xmas:feature',
'xmas:lastcheck',
'xmas:location',
'xmas:name',
'xmas:note',
'xmas:opening_hours',
'xmas:url',
'year',
'year_of_construction' ]
I truncated the output, OSM files have a lot of properties.
#####For a report on one property ('highway' in this case):
report(collection, 'key highway', function(response) {
console.log(response)
})
returns
{ type: [ 'undefined', 'string' ],
min: 'bridleway',
max: undefined,
values:
[ { val: 'bridleway', count: 1 },
{ val: 'yes', count: 1 },
{ val: 'speed_camera', count: 2 },
{ val: 'mini_roundabout', count: 3 },
{ val: 'planed', count: 4 },
{ val: 'secondary_link', count: 6 },
{ val: 'tertiary_link', count: 6 },
{ val: 'stop', count: 7 },
{ val: 'living_street', count: 11 },
{ val: 'track', count: 14 },
{ val: 'construction', count: 20 },
{ val: 'turning_circle', count: 28 },
{ val: 'platform', count: 31 },
{ val: 'street_lamp', count: 34 },
{ val: 'proposed', count: 35 },
{ val: 'elevator', count: 60 },
{ val: 'path', count: 65 },
{ val: 'cycleway', count: 80 },
{ val: 'bus_stop', count: 170 },
{ val: 'primary', count: 222 },
{ val: 'crossing', count: 270 },
{ val: 'tertiary', count: 279 },
{ val: 'residential', count: 378 },
{ val: 'pedestrian', count: 416 },
{ val: 'secondary', count: 466 },
{ val: 'traffic_signals', count: 502 },
{ val: 'unclassified', count: 507 },
{ val: 'steps', count: 708 },
{ val: 'service', count: 981 },
{ val: 'footway', count: 2673 },
{ val: undefined, count: 22007 } ] }
type is the type(s) of data (string, number, boolean...)
min and max may not be very useful in this case as the key is not a number
Then you have the number of features by value
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent