// ==UserScript==// @name                WME Roundabout Angles// @namespace           http://userscripts.org/scripts/show/440831// @description         Draws angles for typical roundabout and overlays helper line to adjust geometry of roundabout.// @include             https://www.waze.com/editor/*// @include             https://www.waze.com/*/editor/*// @include             https://editor-beta.waze.com/*// @version             1.06// @grant               none// @copyright           2014 wlodek76// @copyright           2014,2016 FZ69617// ==/UserScript==/** Version history:** 1.06 (20160405)* - New: Roundabount Angles layer enablement persisted in local storege.* - New: Added yellow color marker for uncertain angles.* - Change: Roundabount center taken from junction model geomentry if available.* - Change: Logic slightly modified in order to better support various roundabount types.* - Other: Minor code refactoring and cleanup.** 1.05 (20141002)* - New: Added support for roundabouts with 1 or 2 nodes.* - Improvement: Simplified roundabout markers starts displaying at zoom level 1.* - Improvement: Minimal required zoom level to compute roundabout angles changed to 5 (was 6).* - Improvement: Light blue marker circle is now displayed only with roundabouts for which the script* can measure angles. The other roundabouts (with more than 4 nodes) are displayed a bit darker.* - Optimization: Significantly improved script execution performance.** 1.04.1 (20141001)* - Fix: Adapted to WME v1.6-297 by FZ69617.*/var wmech_version = "1.06"//---------------------------------------------------------------------------------------function bootstrapRoundaboutAngles(){var bGreasemonkeyServiceDefined = false;try {bGreasemonkeyServiceDefined = (typeof Components.interfaces.gmIGreasemonkeyService === "object");}catch (err) { /* Ignore */ }if (typeof unsafeWindow === "undefined" || ! bGreasemonkeyServiceDefined) {unsafeWindow    = ( function () {var dummyElem = document.createElement('p');dummyElem.setAttribute('onclick', 'return window;');return dummyElem.onclick();}) ();}/* begin running the code! */setInterval(DrawRoundaboutAngles, 500);//     setInterval( function() {//             console.time('DrawRoundaboutAngles');//             DrawRoundaboutAngles();//             console.timeEnd('DrawRoundaboutAngles');//         }, 500 );console.log("WME Roundabout Angles " + wmech_version + " started.");}//---------------------------------------------------------------------------------------function DrawRoundaboutAngles(){if (Waze == null || Waze.map == null || Waze.model == null || OpenLayers == null) return;//---------get or create layervar layers = Waze.map.getLayersBy("uniqueName","__DrawRoundaboutAngles");var drc_layer;if(layers.length > 0) {drc_layer = layers[0];} else {var drc_style = new OpenLayers.Style({fillOpacity: 0.0,strokeOpacity: 1.0,fillColor: "#FF40C0",strokeColor: "${strokeColor}",strokeWidth: 10,fontWeight: "bold",pointRadius: 0,label : "${labelText}",fontFamily: "Tahoma, Courier New",labelOutlineColor: "#FFFFFF",labelOutlineWidth: 3,fontColor: "${labelColor}",fontSize: "10px"});drc_layer = new OpenLayers.Layer.Vector("Roundabout Angles", {displayInLayerSwitcher: true,uniqueName: "__DrawRoundaboutAngles",styleMap: new OpenLayers.StyleMap(drc_style)});I18n.translations.en.layers.name["__DrawRoundaboutAngles"] = "Roundabout Angles";Waze.map.addLayer(drc_layer);drc_layer.setVisibility(localStorage.WMERAEnabled == "true");}localStorage.WMERAEnabled = drc_layer.visibility;if (drc_layer.visibility == false) {drc_layer.removeAllFeatures();return;}if (Waze.map.zoom < 1) {drc_layer.removeAllFeatures();return;}//---------collect all roundabouts firstvar rsegments = {};for (var iseg in Waze.model.segments.objects) {var isegment = Waze.model.segments.get(iseg);var iattributes = isegment.attributes;var iline = isegment.geometry.id;var irid = iattributes.junctionID;if (iline !== null && irid != undefined) {var rsegs = rsegments[irid];if (rsegs == undefined) {rsegments[irid] = rsegs = new Array();}rsegs.push(isegment);}}//     var rcount = 0, scount = 0;//     for (var irid in rsegments) {//         var rsegs = rsegments[irid];//         scount += rsegs.length;//         ++rcount;//     }//     console.log("Roundabouts found: " + rcount + ", segments: " + scount);var drc_features = [];//-------for each roundabout do...for (var irid in rsegments) {var rsegs = rsegments[irid];var isegment = rsegs[0];var jsegment;var nodes = new Array();var nodes_x = new Array();var nodes_y = new Array();for (var j = 0; j < rsegs.length; ++j) {jsegment = rsegs[j];var jattributes = jsegment.attributes;if (nodes.indexOf(jattributes.fromNodeID) == -1) {nodes.push(jattributes.fromNodeID);}if (nodes.indexOf(jattributes.toNodeID) == -1) {nodes.push(jattributes.toNodeID);}}var node_objects = Waze.model.nodes.getByIds(nodes);for (var i=0; i < node_objects.length; ++i) {var node = node_objects[i];nodes_x.push(node.geometry.x);nodes_y.push(node.geometry.y);}var sr_x   = 0;var sr_y   = 0;var radius = 0;var numNodes = nodes_x.length;if (numNodes >= 1) {//-----------throw short segments/* while (nodes_x.length > 4) {var id = 0;var dmin = 99999999;for(var i=0; i<nodes_x.length; i++) {for(var j=0; j<nodes_x.length; j++) {if (i == j) continue;var x1 = nodes_x[i];var y1 = nodes_y[i];var x2 = nodes_x[j];var y2 = nodes_y[j];var dx = x1 - x2;var dy = y1 - y2;var d = dx*dx + dy*dy;if (d < dmin) { dmin = d; id = i; }}}nodes_x.splice(id, 1);nodes_y.splice(id, 1);} */var ax = nodes_x[0];var ay = nodes_y[0];var junction = Waze.model.junctions.get(irid);var junction_coords = junction && junction.geometry && junction.geometry.coordinates;if (junction_coords && junction_coords.length == 2) {//---------- get center point from junction modelvar lonlat = new OpenLayers.LonLat(junction_coords[0], junction_coords[1]);lonlat.transform(Waze.map.displayProjection, Waze.map.projection);var pt = lonlat.toPoint();sr_x = pt.x;sr_y = pt.y;}else if (numNodes >= 3) {//-----------simple approximation of centre point calculated from three first pointsvar bx = nodes_x[1];var by = nodes_y[1];var cx = nodes_x[2];var cy = nodes_y[2];var x1 = (bx + ax) * 0.5;var y11 = (by + ay) * 0.5;var dy1 = bx - ax;var dx1 = -(by - ay);var x2 = (cx + bx) * 0.5;var y2 = (cy + by) * 0.5;var dy2 = cx - bx;var dx2 = -(cy - by);sr_x = (y11 * dx1 * dx2 + x2 * dx1 * dy2 - x1 * dy1 * dx2 - y2 * dx1 * dx2)/ (dx1 * dy2 - dy1 * dx2);sr_y = (sr_x - x1) * dy1 / dx1 + y11;}else {//---------- simple bounds-based calculation of center pointvar rbounds = new OpenLayers.Bounds();rbounds.extend(isegment.geometry.bounds);rbounds.extend(jsegment.geometry.bounds);var center = rbounds.getCenterPixel();sr_x = center.x;sr_y = center.y;}var angles = [];var rr = -1;var r_ix;for(var i=0; i<nodes_x.length; i++) {var dx = nodes_x[i] - sr_x;var dy = nodes_y[i] - sr_y;var rr2 = dx*dx + dy*dy;if (rr < rr2) {rr = rr2;r_ix = i;}var angle = Math.atan2(dy, dx);angle = (360.0 + (angle * 180.0 / Math.PI));if (angle < 0.0) angle += 360.0;if (angle > 360.0) angle -= 360.0;angles.push(angle);}radius = Math.sqrt(rr);//---------sorting angles for calulating angle difference between two segmentsangles = angles.sort(function(a,b) { return a - b; });angles.push( angles[0] + 360.0);angles = angles.sort(function(a,b) { return a - b; });//console.log(angles);var drc_color = (numNodes <= 4) ? "#0040FF" : "#002080";var drc_point = new OpenLayers.Geometry.Point(sr_x, sr_y );var drc_circle = new OpenLayers.Geometry.Polygon.createRegularPolygon( drc_point, radius, 10 * Waze.map.zoom );var drc_feature = new OpenLayers.Feature.Vector(drc_circle, {labelText: "", labelColor: "#000000", strokeColor: drc_color, }  );drc_features.push(drc_feature);if (numNodes >= 2 && numNodes <= 4 && Waze.map.zoom >= 5) {for(var i=0; i<nodes_x.length; i++) {var ix = nodes_x[i];var iy = nodes_y[i];var startPt   = new OpenLayers.Geometry.Point( sr_x, sr_y );var endPt     = new OpenLayers.Geometry.Point( ix, iy );var line      = new OpenLayers.Geometry.LineString([startPt, endPt]);var style     = {strokeColor:drc_color, strokeWidth:2};var fea       = new OpenLayers.Feature.Vector(line, {}, style);drc_features.push(fea);}var angles_int = [];var angles_float = [];var angles_sum = 0;for(var i=0; i<angles.length - 1; i++) {var ang = angles[i+1] - angles[i+0];if (ang < 0) ang += 360.0;if (ang < 0) ang += 360.0;if (ang < 135.0) {ang = ang - 90.0;}else {ang = ang - 180.0;}angles_sum += parseInt(ang);angles_float.push( ang );angles_int.push( parseInt(ang) );}if (angles_sum > 45) angles_sum -= 90;if (angles_sum > 45) angles_sum -= 90;if (angles_sum > 45) angles_sum -= 90;if (angles_sum > 45) angles_sum -= 90;if (angles_sum < -45) angles_sum += 90;if (angles_sum < -45) angles_sum += 90;if (angles_sum < -45) angles_sum += 90;if (angles_sum < -45) angles_sum += 90;if (angles_sum != 0) {for(var i=0; i<angles_int.length; i++) {var a = angles_int[i];var af = angles_float[i] - angles_int[i];if ( (a < 10 || a > 20) && (af < -0.5 || af > 0.5) )  {angles_int[i] += -angles_sum;break;}}}if (numNodes == 2) {angles_int[1] = -angles_int[0];angles_float[1] = -angles_float[0];}for(var i=0; i<angles.length - 1; i++) {var arad = (angles[i+0] + angles[i+1]) * 0.5 * Math.PI / 180.0;var ex = sr_x + Math.cos (arad) * radius * 0.5;var ey = sr_y + Math.sin (arad) * radius * 0.5;var angint = angles_int[i];var kolor = "#004000";if (angint <= -15 || angint >= 15) kolor = "#FF0000";else if (angint <= -13 || angint >= 13) kolor = "#FFC000";var pt = new OpenLayers.Geometry.Point(ex, ey);drc_features.push(new OpenLayers.Feature.Vector( pt, {labelText: (angint + "°"), labelColor: kolor } ));//drc_features.push(new OpenLayers.Feature.Vector( pt, {labelText: (+angles_float[i].toFixed(2) + "°"), labelColor: kolor } ));}}else {for(var i=0; i < nodes_x.length; i++) {var ix = nodes_x[i];var iy = nodes_y[i];var startPt   = new OpenLayers.Geometry.Point( sr_x, sr_y );var endPt     = new OpenLayers.Geometry.Point( ix, iy );var line      = new OpenLayers.Geometry.LineString([startPt, endPt]);var style     = {strokeColor:drc_color, strokeWidth:2};var fea       = new OpenLayers.Feature.Vector(line, {}, style);drc_features.push(fea);}}var p1   = new OpenLayers.Geometry.Point( nodes_x[r_ix], nodes_y[r_ix] );var p2   = new OpenLayers.Geometry.Point( sr_x, sr_y );var line = new OpenLayers.Geometry.LineString([p1, p2]);var geo_radius = line.getGeodesicLength(Waze.map.projection);var diam = geo_radius * 2.0;var pt = new OpenLayers.Geometry.Point(sr_x, sr_y);drc_features.push(new OpenLayers.Feature.Vector( pt, {labelText: (diam.toFixed(0) + "m"), labelColor: "#000000" } ));}}drc_layer.removeAllFeatures();drc_layer.addFeatures(drc_features);}//---------------------------------------------------------------------------------------bootstrapRoundaboutAngles();