JirkaChadima

#!/bin/bash
# GPS data passed through https://github.com/tyrasd/osmtogeojson
curl -X POST 'https://lz4.overpass-api.de/api/interpreter' -d@overpass-query.txt | osmtogeojson > src.geojson
# utility script from https://github.com/JirkaChadima/cz-region-boundaries/blob/master/scripts/prepare-gps-data.js
node prepare-gps-data.js

# ZIP codes processing
PSCSOURCE='https://www.ceskaposta.cz/documents/10180/3738087/xls_pcobc.zip/50617e56-6e9a-4335-9608-96fec214e6ef'
# https://github.com/JirkaChadima/cz-region-boundaries/blob/master/data/zip/county-region.csv, collected from https://cs.wikipedia.org/wiki/Okresy_v_%C4%8Cesku#Okresy_podle_samospr%C3%A1vn%C3%BDch_kraj%C5%AF
OKRESFILE="../data/zip/county-region.csv"

JirkaChadima

//...
// java code
//...
/**
* https://stackoverflow.com/a/38675842
*/
protected boolean isInside(Point p, Polygon polygon) {
  if (polygon == null) {
    return false;
  }

JirkaChadima

from eventlet.hubs import trampoline

def start_listening(queue):
    """Connects to PgSQL and listens to notifications, inspired by http://initd.org/psycopg/articles/2010/12/01/postgresql-notifications-psycopg2-eventlet/"""
    if not queue:
        return
    connection = psycopg2.connect(DSN)
    cursor = connection.cursor()
    cursor.execute("LISTEN field_value_change")

JirkaChadima

-- simple table definition, sequence omitted
CREATE TABLE field_value (
    id integer NOT NULL,
    value character varying(255) NOT NULL,
    field character varying(80)
);

CREATE FUNCTION field_value_notify_change() RETURNS trigger
    LANGUAGE plpgsql
    AS $$

JirkaChadima

from flask import Flask
from flask_socketio import SocketIO
from flask_cors import CORS

app = Flask(__name__)
app.config.from_envvar('FLASKR_SETTINGS', silent=True)

CORS(app)
socketio = SocketIO(app)

JirkaChadima

// omit imports
const   SOCKET_URL = '/* @echo SOCKET_URL */';

@Component({
    templateUrl: 'dashboard.component.html',
    styleUrls: ['dashboard.component.less']
})
export class Dashboard implements OnInit, OnDestroy {

    public mainSocket: WrappedSocket;

JirkaChadima

// .. omit some imports
@Injectable()
export class WebSocketService {
    private sockets: {[name: string]: WrappedSocket} = {};

    public connect(url: string, options?: any): WrappedSocket {
        if (! this.sockets[url]) {
            this.sockets[url] = new WrappedSocket({url: url, options: options});
        }
        return this.sockets[url];

JirkaChadima

# http://initd.org/psycopg/docs/advanced.html#asynchronous-notifications
import select
import psycopg2
import psycopg2.extensions

conn = psycopg2.connect(DSN)
conn.set_isolation_level(psycopg2.extensions.ISOLATION_LEVEL_AUTOCOMMIT)

curs = conn.cursor()
cursor.execute("LISTEN field_value_change")

JirkaChadima

navigator.geolocation.getCurrentPosition(function (position) {
    xhrRequest('https://api.csas.cz/sandbox/webapi/api/v2/places?radius=500&country=CZ&types=ATM&limit=1&lat=' + position.coords.latitude + '&lng=' + position.coords.longitude,
    'GET',
    '7f29f5d5-c9d4-4266-8e6b-3733064da14x',
    function (status, data) {
        var response = {};
        var json = JSON.parse(data).items[0];
        response = {
            'KEY_DISTANCE': json.distance,
            'KEY_DIRECTION': computeBearing(position.coords, { // computes azimuth

JirkaChadima

static void detail_window_set_place(Place place) {
    if (!detail_window) {
        detail_window = detail_window_init();
    }
    text_layer_set_text(address_layer, place.address);
    snprintf(distance_buffer, sizeof(distance_buffer), "%d m", place.distance);
    place_direction = place.direction;
    text_layer_set_text(distance_layer, distance_buffer);
    text_layer_set_text(hours_layer, place.hours);
    write_direction_to_ui(); // computes orientation of arrow