/* ------------------------------------------------------------------ File: route.js Abstract: handling of routes, route display function Version: 1.0 Authors: Pascal Dreer / Joze Senegacnik ------------------------------------------------------------------ */ var gRt = null; var routeWindow = null; var gHeading = 0; function routeTest() { try { gRt = new RouteList(); gRt.add(1,90,7,5,0,0); gRt.add(2,90,7,5,0,0); alert("Bearing 1 > 2:" + roundNumber(gRt.find(2).getBearing(),2)); gRt.add(3,90,7.5,0,0); gRt.display(); gRt.add(4,90,7.5,0,0,gRt.find(2)); gRt.display(); gRt.add(5,90,7.5,0,0); gRt.display(); gRt.remove(gRt.find(2)); gRt.display(); gRt.redraw(); var dist = gRt.getDistance(); var distText = "Distanz: " + Math.round(dist / 1000) + " km (" + Math.round(dist * 0.0005399568) + " NM)"; alert("Dist=" + distText + "/Dur=" + formatTimeHHMM(gRt.getDuration())); // gRt.deleteList(); // gRt.display(); } catch ( e ) { alert("An exception occurred in the script. Error name: " + e.name + ". Error message: " + e.message); } } function routeStarted() { if (gRt) return true; else return false; } function resetRoute() { if (gRt) gRt.deleteList(); gRt = null; initRouting(); if (routeWindow) { routeWindow.close(); routeWindow = null; } } function openRouteWindow() { if (routeWindow) { if (!routeWindow.closed) { showRoute(); routeWindow.focus(); return; } } var routeWinWidth = 700; var routeWinLeft = getWindowWidth() + 10; if ((routeWinLeft + routeWinWidth) > screen.width) routeWinLeft = screen.width - routeWinWidth; routeWindow = window.open("","Route","width=" + routeWinWidth + ",height=400,left=" + routeWinLeft + ",top=50, menubar"); // this.href routeWindow.name = "Routing-Window"; routeWindow.focus(); showRoute() ; return; if (!routeWindow) { var routeWinWidth = 700; var routeWinLeft = getWindowWidth() + 10; if ((routeWinLeft + routeWinWidth) > screen.width) routeWinLeft = screen.width - routeWinWidth; routeWindow = window.open("","Route","width=" + routeWinWidth + ",height=400,left=" + routeWinLeft + ",top=50, menubar"); // this.href routeWindow.name = "Routing-Window"; routeWindow.focus(); showRoute() ; } else { showRoute(); routeWindow.focus(); } } function updateRouteWindow() { if (routeStarted() && routeWindow) if (!routeWindow.closed) showRoute(); } function showRoute() { /* var coordinates = new Array(); if (gRt) { var rp = gRt.display(); while (rp != null) { coordinates[ coordinates.length ] = gMarkers[rp.prev.mp_id].getPoint(); rp = gRt.display(rp); } topoDrawGraph( document.getElementById("graph"), coordinates ); } */ var HTMLstring='\n'; HTMLstring+='\n'; HTMLstring+='Route\n'; HTMLstring+=''; HTMLstring+='\n'; HTMLstring+='\n'; if (gRt) { var txt=""; var txt = ""; // header txt += ""; var rp = gRt.display(); var eto = 0; var eet = 0; var efuel = 0; var etfuel = 0; while (rp != null) { if( rp.dist > 0.0 ) { eet = Math.round((rp.dist * 0.0005399568) / rp.gs * 60); } else { eet = 0; } efuel= eet*( rp.fuel_consumption / 60 ); etfuel += efuel; eto = eto + eet; //text line txt += ""; rp = gRt.display(rp); } txt += "
WaypointCourseHeadingWCAWindDistElev (ft)TASGSFuelEETΣ EET
" + gMappoints[rp.mp_id].name + "" + formatBearing(rp.bearing) + "" + formatBearing(rp.heading) + "" + rp.wca + "" + rp.wind_dir + "@" + rp.wind_speed + "" + Math.round(rp.dist * 0.0005399568) + "" + gMappoints[rp.mp_id].elev + "" + Math.round(rp.tas) + "" + Math.round(rp.gs) + "" + Math.round(efuel*10)/10 + "" + formatTimeHHMM(eet) + "" + formatTimeHHMM(eto) + "

"; HTMLstring+=txt; var dist = gRt.getDistance(); // var distText = "Distance: " + Math.round(dist * 0.0005399568) + " NM (" + Math.round(dist / 1000) + " km)"; var distText = "Distance: " + Math.round(dist * 0.0005399568) + " NM (" + Math.round(dist) + " m)"; HTMLstring+=distText; } else { HTMLstring+='Routing
'; HTMLstring+='There is no route defined.'; } HTMLstring+='

Close Window

'; HTMLstring+='\n'; HTMLstring+=''; // routeWindow.document.open(); routeWindow.document.write(HTMLstring); routeWindow.document.close(); /* } catch ( e ) { alert("An exception occurred in the script. Error name: " + e.name + ". Error message: " + e.message); } */ } function RoutePoint( mp_id, tas, fc, wd, ws) { this.id = gMappoints[mp_id].id; this.mp_id = mp_id; this.tas = tas; this.gs = 0; this.dist = 0; this.bearing = 0; this.heading = 0; this.wca = 0; this.wind_dir = wd; this.wind_speed = ws; this.fuel_consumption = fc; this.line = null; this.prev = null; this.next = null; this.insertAfter = function(newPoint) { if (this == newPoint) return; newPoint.extract(); newPoint.prev = this; if (this.next) { newPoint.next = this.next; this.next.prev = newPoint; } this.next = newPoint; } this.extract = function() { if (this.prev && this.next) { if (this.next.mp_id) { var points = []; points.push(gMarkers[this.prev.mp_id].getPoint()); points.push(gMarkers[this.next.mp_id].getPoint()); this.next.dist = points[0].distanceFrom(points[1]); points.pop(); points.pop(); } } if (this.line) gMap.removeOverlay(this.line); if (this.prev) this.prev.next = this.next; if (this.next) this.next.prev = this.prev; this.prev = this.next = null; } this.getBearing = function() { return this.bearing; } } function RouteList() { try{ this.prev = this.next = this; this.insertAfter = function(newPoint) { if (this == newPoint) return; newPoint.extract(); newPoint.prev = this; if (this.next) { newPoint.next = this.next; this.next.prev = newPoint; } this.next = newPoint; } this.remove = function(node) { node.extract(); } this.add = function(mp_id, tas, fc, wd, ws, afterNode) { var newNode = new RoutePoint( mp_id, tas, fc, wd, ws ); if (!afterNode) { if (this.prev) afterNode = this.prev; else afterNode = this; } afterNode.insertAfter(newNode); if (newNode.prev.mp_id) { var points = []; points.push(gMarkers[newNode.prev.mp_id].getPoint()); points.push(gMarkers[newNode.mp_id].getPoint()); newNode.dist = points[0].distanceFrom(points[1]); newNode.bearing = calcBearing(points[0].lat(),points[0].lng(),points[1].lat(),points[1].lng()); heading( newNode.bearing, newNode.wind_dir, newNode.wind_speed, newNode.tas ); newNode.gs = gGS; newNode.heading = gHeading; newNode.wca = gWCA; var line = new GPolyline(points,"#f2bf03",4,0.7); newNode.line = line; gMap.addOverlay(line); // points.pop(); } return newNode; } this.find = function (mp_id,startNode) { if (!startNode) startNode = this; for (var node = startNode.next; node != this;node = node.next) { if (node.mp_id == mp_id) return node; } } this.display = function(startPoint) { var list = ""; if (!startPoint) startPoint = this; if (!startPoint.next) return; for (var node = startPoint.next; node != this;node = node.next) { return node; // list = list + node.tas + " "; // if (func(node.elem)) {return node;} } // alert(list); } this.deleteList = function() { var startPoint = this; var node, tmp; for (node = startPoint.next; node != this;null) { tmp = node.next; node.prev.next = null; if (node.line) gMap.removeOverlay(node.line); delete node; node = tmp; } } this.getDistance = function() { var dist = 0; var startPoint = this; for (var node = startPoint.next; node != this;node = node.next) { dist = dist + node.dist; } return dist; } this.getDuration = function() { var duration = 0; var startPoint = this; for (var node = startPoint.next; node != this;node = node.next) { if( node.dist > 0 ) { heading( node.bearing, node.wind_dir, node.wind_speed, node.tas ); node.gs = gGS; node.heading = gHeading; node.wca = gWCA; duration = duration + Math.round(((node.dist * 0.0005399568) / node.gs * 60)); } else { node.gs = node.tas; node.wca = 0; node.heading = node.bearing; } } return Math.round(duration); } this.updatePosition = function(mp_id,startNode) { if (!startNode) startNode = this; for (var node = startNode.next; node != this;node = node.next) { if (node.mp_id == mp_id && startNode.prev) { var points = []; points.push(gMarkers[node.prev.mp_id].getPoint()); points.push(gMarkers[node.mp_id].getPoint()); node.dist = points[0].distanceFrom(points[1]); node.bearing = calcBearing(points[0].lat(),points[0].lng(),points[1].lat(),points[1].lng()); } } } this.redraw = function() { var startPoint = this; for (var node = startPoint.next; node != this;node = node.next) { if (node.line) gMap.removeOverlay(node.line); } var startPoint = this; for (var node = startPoint.next; node != this;node = node.next) { if (node.prev.mp_id) { var points = []; points.push(gMarkers[node.prev.mp_id].getPoint()); points.push(gMarkers[node.mp_id].getPoint()); node.dist = points[0].distanceFrom(points[1]); node.bearing = calcBearing(points[0].lat(),points[0].lng(),points[1].lat(),points[1].lng()); var line = new GPolyline(points,"#f2bf03",4,0.7); node.line = line; gMap.addOverlay(line); points.pop(); points.pop(); } } } } catch (e) { alert("An exception occurred in the script. Error name: " + e.name + ". Error message: " + e.message); } } function initRouting() { try { document.getElementById("route_display").innerHTML = ""; document.getElementById("form_gs").value = gTAS; document.getElementById("form_fuel").value = gFuelConsumption; document.getElementById("form_wind_dir").value = gWind; document.getElementById("form_wind_speed").value = gWindSpeed; displayRouteInfo(0,0,0.0); } catch (e) { alert("An exception occurred in the script. Error name: " + e.name + ". Error message: " + e.message); } } function addTrackLeg(i) { try { if (!gRt) { gRt = new RouteList(); displayRouteInfo(0,0,0); } gRt.add(i, gTAS, gFuelConsumption, gWind, gWindSpeed ); displayRouteInfo(gRt.getDistance(),gRt.getDuration(),0); gMap.closeInfoWindow(); updateRouteWindow(); } catch (e) { alert("An exception occurred in the script. Error name: " + e.name + ". Error message: " + e.message); } } function formatTimeHHMM(time) { if (time > 59) { var hrs = Math.floor(time / 60); var mins = Math.round(time - (hrs * 60)); } else { var hrs = 0; var mins = Math.round(time); } if (hrs < 10) hrsTxt = "0" + hrs; else hrsTxt = hrs; if (mins < 10) minsTxt = "0" + mins; else minsTxt = mins; return (hrsTxt + ":" + minsTxt); } function formatBearing(brng) { var b = Math.round(brng); if (b < 10) return "00" + b; if (b < 100) return "0" + b; return b; } function displayRouteInfo(dist,time,fuel) { var timeText = formatTimeHHMM(Math.round(time)); var fuelText = ""; if (fuel > 0) var fuelText = ", Fuel: " + Math.round(fuel); var timeText = "Time: " + timeText + fuelText; var distText = "Distance: " + Math.round(dist * 0.0005399568) + " NM (" + Math.round(dist / 1000) + " km)"; document.getElementById("route_display").innerHTML = timeText + "
" + distText; } /* Source for bearing calculation: http://www.movable-type.co.uk/scripts/latlong.html */ function calcBearing(lat0,lng0,lat1,lng1) { var dLon = (lng1 - lng0).toRad(); var y = Math.sin(dLon) * Math.cos(lat1.toRad()); var x = Math.cos(lat0.toRad())*Math.sin(lat1.toRad()) - Math.sin(lat0.toRad())*Math.cos(lat1.toRad())*Math.cos(dLon); return Math.atan2(y, x).toBrng(); } Number.prototype.toBrng = function() { // convert radians to degrees (as bearing: 0...360) return (this.toDeg()+360) % 360; } Number.prototype.toRad = function() { // convert degrees to radians return this * Math.PI / 180; } Number.prototype.toDeg = function() { // convert radians to degrees (signed) return this * 180 / Math.PI; } function heading( course, windDir, windSpd, TAS ) { crs = (Math.PI/180) * course; wd = (Math.PI/180) * windDir; swc = (windSpd/TAS) * Math.sin(wd - crs); if (Math.abs(swc) > 1){ alert("Danger!... Course should not be flown... Wind is too strong"); return; } hd = crs + Math.asin(swc); if (hd < 0) { hd = hd + 2 * Math.PI; } if (hd > 2*Math.PI) { hd = hd - 2 * Math.PI; } gHeading = Math.round((180/Math.PI) * hd); gGS = Math.round( TAS * Math.sqrt(1 - Math.pow(swc, 2)) - (windSpd * Math.cos(wd - crs))); var wca = Math.atan2( windSpd * Math.sin(hd-wd),TAS-windSpd * Math.cos(hd-wd)); gWCA = Math.round((180/Math.PI) * (wca * -1)); }