Improved www.ttss.krakow.pl
Jacek Kowalski
2017-04-13 d4eb9e7d6bc326a8efc069c25af2ee35ab87acc4
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<!DOCTYPE HTML>
<html>
<head>
<title>MPK Kraków Map</title>
<style type="text/css">
html, body, #map {
    width: 100%;
    height: 100%;
    margin: 0;
}
#popup {
    color: black;
    background: white;
    padding: 5px;
    border: 1px solid black;
    border-radius: 10px;
    font: 12px sans-serif;
}
#popup p {
    margin: 0;
    padding: 5px;
}
#popup .line-direction {
    font-weight: bold;
}
</style>
<script src="https://code.jquery.com/jquery-3.1.1.min.js" integrity="sha384-3ceskX3iaEnIogmQchP8opvBy3Mi7Ce34nWjpBIwVTHfGYWQS9jwHDVRnpKKHJg7" crossorigin="anonymous"></script>
<script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList"></script>
<script src="https://openlayers.org/en/v4.0.1/build/ol.js" integrity="sha384-DjqoiOTAYD0bxdY6K1Ep7Xd4QQc46AKzKmkgC4+rnKX47PniPHIjRt02uhT8C04h" crossorigin="anonymous"></script>
<script tyle="text/javascript" src="lang_en.js" id="lang_script"></script>
<script tyle="text/javascript" src="common.js"></script>
</head>
<body>
<div id="map"><div id="popup"></div></div>
 
<script tyle="text/javascript">
//var ttss_base = 'http://www.ttss.krakow.pl/internetservice';
var ttss_base = '/proxy.php';
var ttss_refresh = 5000; // 5 seconds
 
var vehicles_source = null;
var vehicles_xhr = null;
var vehicles_timer = null;
var vehicles_last_update = 0;
 
var map = null;
var popup_feature_id = null;
var popup_element = document.getElementById('popup');
var popup = null;
 
function fail(msg) {
    console.log(msg);
    alert(msg);
}
 
function fail_ajax(data) {
    // abort() is not a failure
    if(data.readyState == 0 && data.statusText == 'abort') return;
    
    if(data.status == 0) {
        fail(lang.error_request_failed_connectivity, data);
    } else if (data.statusText) {
        fail(lang.error_request_failed_status.replace('$status', data.statusText), data);
    } else {
        fail(lang.error_request_failed, data);
    }
}
 
function init() {
    if(!window.jQuery) {
        fail(lang.jquery_not_loaded);
        return;
    }
    
    $.ajaxSetup({
        dataType: 'json',
        timeout: 10000,
    });
    
    
    vehicles_source = new ol.source.Vector({
        features: []
    });
    
    popup = new ol.Overlay({
        element: popup_element,
        positioning: 'bottom-center',
        stopEvent: false,
        offset: [0, -12]
    });
    
    map = new ol.Map({
        target: 'map',
        layers: [
            new ol.layer.Tile({
                source: new ol.source.OSM()
            }),
            new ol.layer.Vector({
                source: vehicles_source,
            }),
        ],
        overlays: [popup],
        view: new ol.View({
            center: ol.proj.fromLonLat([19.94, 50.06]),
            zoom: 13
        })
    });
    
    // display popup on click
    map.on('singleclick', function(evt) {
        var feature = map.forEachFeatureAtPixel(evt.pixel, function(feature) { return feature; });
        if(feature) {
            var coordinates = feature.getGeometry().getCoordinates();
            
            deleteChildren(popup_element);
            addParaWithText(popup_element, feature.get('name')).className = 'line-direction';
            
            var vehicle_type = parseVehicle(feature.get('id'));
            if(vehicle_type) {
                addParaWithText(popup_element, vehicle_type.num + ' ' + vehicle_type.type);
            }
            
            popup.setPosition(coordinates);
            popup_feature_id = feature.getId();
        } else {
            popup.setPosition(undefined);
            popup_feature_id = null;
        }
    });
 
    // change mouse cursor when over marker
    map.on('pointermove', function(e) {
        var pixel = map.getEventPixel(e.originalEvent);
        var hit = map.hasFeatureAtPixel(pixel);
        var target = map.getTarget();
        if(target.style)
            target.style.cursor = hit ? 'pointer' : '';
    });
}
 
function updateVehicles() {
    if(vehicles_timer)clearTimeout(vehicles_timer);
    if(vehicles_xhr) vehicles_xhr.abort();
    
    vehicles_xhr = $.get(
        ttss_base + '/geoserviceDispatcher/services/vehicleinfo/vehicles' 
            + '?positionType=CORRECTED'
            + '&colorType=ROUTE_BASED'
            + '&lastUpdate=' + encodeURIComponent(vehicles_last_update)
    ).done(function(data) {
        vehicles_last_update = data.lastUpdate;
        
        for(var i = 0; i < data.vehicles.length; i++) {
            var vehicle = data.vehicles[i];
            
            var vehicle_feature = vehicles_source.getFeatureById(vehicle.id);
            if(vehicle.isDeleted) {
                if(vehicle_feature) {
                    vehicles_source.removeFeature(vehicle_feature);
                }
                continue;
            }
            
            var vehicle_name_space = vehicle.name.indexOf(' ');
            vehicle.line = vehicle.name.substr(0, vehicle_name_space);
            vehicle.direction = vehicle.name.substr(vehicle_name_space+1);
            if(special_directions[vehicle.direction]) {
                vehicle.line = special_directions[vehicle.direction];
            }
            
            vehicle.geometry = new ol.geom.Point(ol.proj.fromLonLat([vehicle.longitude / 3600000.0, vehicle.latitude / 3600000.0]));
            vehicle.vehicle_type = parseVehicle(vehicle.id);
            
            if(!vehicle_feature) {
                vehicle_feature = new ol.Feature(vehicle);
                vehicle_feature.setId(vehicle.id);
                
                var color_type = 'black';
                if(vehicle.vehicle_type) {
                    switch(vehicle.vehicle_type.low) {
                        case 0:
                            color_type = 'orange';
                            break;
                        case 1:
                            color_type = 'blue';
                            break;
                        case 2:
                            color_type = 'green';
                            break;
                    }
                }
                
                vehicle_feature.setStyle(new ol.style.Style({
                    image: new ol.style.RegularShape({
                        fill: new ol.style.Fill({color: '#3399ff'}),
                        stroke: new ol.style.Stroke({color: color_type, width: 2}),
                        points: 3,
                        radius: 12,
                        rotation: Math.PI * parseFloat(vehicle.heading) / 180.0,
                        rotateWithView: true,
                        angle: 0
                    }),
                    text: new ol.style.Text({
                        font: 'bold 10px sans-serif',
                        text: vehicle.line,
                        fill: new ol.style.Fill({color: 'white'}),
                    }),
                }));
                vehicles_source.addFeature(vehicle_feature);
            } else {
                vehicle_feature.setProperties(vehicle);
                vehicle_feature.getStyle().getImage().setRotation(Math.PI * parseFloat(vehicle.heading) / 180.0);
                if(popup_feature_id == vehicle.id) {
                    popup.setPosition(vehicle_feature.getGeometry().getCoordinates());
                }
            }
        }
        
        vehicles_timer = setTimeout(function(){ 
            updateVehicles();
        }, ttss_refresh);
    }).fail(fail_ajax);
}
 
init();
updateVehicles();
</script>
</body>
</html>