Draws angles for typical roundabout and overlays helper line to adjust geometry of roundabout.
// ==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 layer
var 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 first
var 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 model
var 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 points
var 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 point
var 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 segments
angles = 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();