Simplifies geometry of area places in WME
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// ==UserScript==
// @name WME Simplify Place Geometry
// @description Simplifies geometry of area places in WME
// @version 1.01
// @author SAR85
// @copyright SAR85
// @license CC BY-NC-ND
// @grant none
// @include https://www.waze.com/editor/*
// @include https://www.waze.com/*/editor/*
// @include https://editor-beta.waze.com/*
// @namespace https://greasyfork.org/users/9321
// ==/UserScript==
/* Global vars */
var simplifyVersion = "1.01";
var simplifyChanges = "WME Simplify Area Geometry has been updated to version " +
simplifyVersion + ".\n" +
"*Minor bug fix.";
var simpUpdateFeatureGeometry = require("Waze/Action/UpdateFeatureGeometry");
var simpUpdateObject = require("Waze/Action/UpdateObject");
function simpBootstrap() {
var bGreasemonkeyServiceDefined = false;
try {
if ("object" === typeof Components.interfaces.gmIGreasemonkeyService) {
bGreasemonkeyServiceDefined = true;
}
} catch (err) {
// Ignore.
}
if ("undefined" === typeof unsafeWindow || !bGreasemonkeyServiceDefined) {
unsafeWindow = (function () {
var dummyElem = document.createElement('p');
dummyElem.setAttribute('onclick', 'return window;');
return dummyElem.onclick();
})();
}
/* begin running the code! */
window.setTimeout(simpInit, 3000);
/*doesn't work in FF: $(document).ready(simpInit); */
}
function addSimplifyFunc() {
/*
(c) 2013, Vladimir Agafonkin
Simplify.js, a high-performance JS polyline simplification library
mourner.github.io/simplify-js
*/
(function () {
'use strict';
/* // to suit your point format, run search/replace for '.x' and '.y';
// for 3D version, see 3d branch (configurability would draw significant performance overhead) */
/* // square distance between 2 points */
function getSqDist(p1, p2) {
var dx = p1.x - p2.x,
dy = p1.y - p2.y;
return dx * dx + dy * dy;
}
/* // square distance from a point to a segment */
function getSqSegDist(p, p1, p2) {
var x = p1.x,
y = p1.y,
dx = p2.x - x,
dy = p2.y - y;
if (dx !== 0 || dy !== 0) {
var t = ((p.x - x) * dx + (p.y - y) * dy) / (dx * dx + dy * dy);
if (t > 1) {
x = p2.x;
y = p2.y;
} else if (t > 0) {
x += dx * t;
y += dy * t;
}
}
dx = p.x - x;
dy = p.y - y;
return dx * dx + dy * dy;
}
/* // rest of the code doesn't care about point format */
/* // basic distance-based simplification */
function simplifyRadialDist(points, sqTolerance) {
var prevPoint = points[0],
newPoints = [prevPoint],
point;
for (var i = 1, len = points.length; i < len; i++) {
point = points[i];
if (getSqDist(point, prevPoint) > sqTolerance) {
newPoints.push(point);
prevPoint = point;
}
}
if (prevPoint !== point)
newPoints.push(point);
return newPoints;
}
/* // simplification using optimized Douglas-Peucker algorithm with recursion elimination */
function simplifyDouglasPeucker(points, sqTolerance) {
var len = points.length,
MarkerArray = typeof Uint8Array !== 'undefined' ? Uint8Array : Array,
markers = new MarkerArray(len),
first = 0,
last = len - 1,
stack = [],
newPoints = [],
i,
maxSqDist,
sqDist,
index;
markers[first] = markers[last] = 1;
while (last) {
maxSqDist = 0;
for (i = first + 1; i < last; i++) {
sqDist = getSqSegDist(points[i], points[first], points[last]);
if (sqDist > maxSqDist) {
index = i;
maxSqDist = sqDist;
}
}
if (maxSqDist > sqTolerance) {
markers[index] = 1;
stack.push(first, index, index, last);
}
last = stack.pop();
first = stack.pop();
}
for (i = 0; i < len; i++) {
if (markers[i])
newPoints.push(points[i]);
}
return newPoints;
}
/* // both algorithms combined for awesome performance */
function simplify(points, tolerance, highestQuality) {
if (points.length <= 1)
return points;
var sqTolerance = tolerance !== undefined ? tolerance * tolerance : 1;
points = highestQuality ? points : simplifyRadialDist(points, sqTolerance);
points = simplifyDouglasPeucker(points, sqTolerance);
return points;
}
/* // export as AMD module / Node module / browser or worker variable */
if (typeof define === 'function' && define.amd)
define(function () {
return simplify;
});
else if (typeof module !== 'undefined')
module.exports = simplify;
else if (typeof self !== 'undefined')
self.simplify = simplify;
else
window.simplify = simplify;
})();
}
function simpInit() {
/* HTML */
var content = '<div id="simplifyarea"><p id="simplifyhelp" style="text-align: center; margin-bottom: 2px; text-decoration: underline; font-weight: bold; cursor: help;">WME Simplify Area Geometry</p><p style="text-align: center; margin: 0px;">Simplification factor: <input type="number" min="1" max="20" id="simpE" style="height: 20px; background-color: rgba(0,0,0,0.8); padding-left: 2px; border: 1px solid white; color: white; width: 50px"></p><p style="color: white;margin: 2px 0 0 0;"><a id="simplifylink" style="cursor:pointer; color: rgb(27,237,30)">Simplify Geometry</a> | <a id="clearlink" style="cursor:pointer; color: red;">Clear Geometry</a></p></div>';
var css = {
"display" : "none",
"position" : "absolute",
"top" : "120px",
"left" : "73px",
"padding" : "4px",
"background-color" : "rgba(0,0,0,0.8)",
"border-radius" : "5px",
"border" : "none",
"color" : "white",
"font-size" : "0.9em"
};
/* Initialize simplification library */
addSimplifyFunc();
/* Add HTML to page and initialize*/
$('#map').append(content);
$('#simplifyarea').css(css);
$('#simpE').val(localStorage.simplifyE || '5');
$('#simplifylink').click(simplifyFeatureGeometry);
$('#clearlink').click(clearFeatureGeometry);
try {
$('#simplifyarea').draggable();
} catch (err) {}
/* Event listeners */
$('#simplifyhelp').click(function () {
alert('To use WME Simplify Place Geometry: \n' +
'1. Select an area place \n' +
'2. Select an appropriate simplification factor (usually 5-10) \n' +
'3. Click the link to simplify or clear the geometry');
});
$('#simpE').change(function () {
localStorage.simplifyE = $('#simpE').val();
});
W.selectionManager.events.register("selectionchanged", null, function () {
if (W.selectionManager.hasSelectedItems()) {
var selectedItem = W.selectionManager.selectedItems[0].model;
if (!(selectedItem.geometry instanceof OpenLayers.Geometry.Polygon))
return;
$('#simplifyarea').fadeIn('fast');
} else {
$('#simplifyarea').fadeOut('fast');
}
});
/* Add functions to page */
self.simplifyFeatureGeometry = simplifyFeatureGeometry;
self.clearFeatureGeometry = clearFeatureGeometry;
/* Shortcut key = shift+j for simplifying */
W.accelerators.addAction('simplifyFeatureGeometry', {
group : "editing"
});
W.accelerators.events.register('simplifyFeatureGeometry', null, function () {
simplifyFeatureGeometry();
});
W.accelerators.registerShortcuts({
'S+j' : "simplifyFeatureGeometry"
});
/* Shortcut key = ctrl-shift-j for clearing */
W.accelerators.addAction('clearFeatureGeometry', {
group : "editing"
});
W.accelerators.events.register('clearFeatureGeometry', null, function () {
clearFeatureGeometry();
});
W.accelerators.registerShortcuts({
'CS+j' : "clearFeatureGeometry"
});
console.log("WME Simplify Area Geometry Initialized");
/* Update Alert */
if (window.localStorage.simplifyVersion == 'undefined' || window.localStorage.simplifyVersion !== simplifyVersion) {
alert(simplifyChanges);
window.localStorage.simplifyVersion = simplifyVersion;
}
}
function simplifyFeatureGeometry(e) {
if (!W.selectionManager.hasSelectedItems() || W.selectionManager.selectedItems[0].model.type !== "venue" || !W.selectionManager.selectedItems[0].model.isGeometryEditable() || !W.selectionManager.selectedItems[0].model.geometry instanceof OpenLayers.Geometry.Polygon)
return;
e = $('#simpE').val() || 5;
var place = W.selectionManager.selectedItems[0];
var oldGeometry = place.geometry.clone();
var newGeometry = oldGeometry.clone();
newGeometry.components[0].components = simplify(oldGeometry.components[0].components, e, false);
if (newGeometry.components[0].components.length < oldGeometry.components[0].components.length) {
W.model.actionManager.add(new simpUpdateFeatureGeometry(place.model, W.model.venues, oldGeometry, newGeometry));
console.log("WME Simplify Area Geometry: " + place.model.attributes.name + " simplified from " + oldGeometry.components[0].components.length + " to " + newGeometry.components[0].components.length + " geo nodes using factor " + e + ".");
} else {
console.log("Geo nodes cannot be simplified from " + oldGeometry.components[0].components.length + " to " + newGeometry.components[0].components.length + ".");
}
}
function clearFeatureGeometry() {
if (!W.selectionManager.hasSelectedItems() || W.selectionManager.selectedItems[0].model.type !== "venue" || !W.selectionManager.selectedItems[0].model.isGeometryEditable() || !W.selectionManager.selectedItems[0].model.geometry instanceof OpenLayers.Geometry.Polygon)
return;
var newGeometry,
navAction;
var venue = W.selectionManager.selectedItems[0].model;
var newEntryExitPoint = {
entry : true,
exit : true
};
var oldGeometry = venue.geometry;
if (oldGeometry.components[0].components.length > 4) {
newGeometry = oldGeometry.getBounds().toGeometry();
if (newGeometry.getArea() > 160)
newGeometry.resize(0.5, newGeometry.getCentroid());
newEntryExitPoint.point = newGeometry.getCentroid();
W.model.actionManager.add(new simpUpdateFeatureGeometry(venue, W.model.venues, oldGeometry, newGeometry));
navAction = new simpUpdateObject(venue, {
entryExitPoints : [newEntryExitPoint]
});
navAction.eachGeometryField = function (e, t) {
var i,
n,
s,
r,
o;
for (r = e.entryExitPoints, o = [], n = 0, s = r.length; s > n; n++)
i = r[n], o.push(t.call(this, "point", i.point, i));
return o;
};
W.model.actionManager.add(navAction);
}
}
simpBootstrap();