double line shenanigans

src/components/DrawTools.js

 import React, {Component} from 'react';
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 import { EditControl } from 'react-leaflet-draw'
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 import L from 'leaflet'
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 import { FeatureGroup } from 'react-leaflet'
 
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 // empty icon for the text field
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 let emptyicon = L.icon({
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 	iconUrl: '../icons/nil.png',
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 	iconSize: [1, 1],
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 	iconAnchor: [1, 1]
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 });
 
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 /*Class for new marker */
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 L.Draw.MarkerTextBox = L.Draw.Marker.extend({
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 	options: {
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 		icon: emptyicon,
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 		repeatMode: true
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 	},
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 	initialize: function (map, options) {
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 		// important to have a unique type, so that it won't get mixed up with other elements
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 		this.type = 'textbox';
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 		this.featureTypeCode = 'textbox';
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 		L.Draw.Feature.prototype.initialize.call(this, map, options);
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 	}
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 });
 
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 //Redefinitions d'éléments de DrawToolbar 
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 L.DrawToolbar.prototype.options={
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 	polyline: {},
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 	polygon: {},
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 	rectangle: {},
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 	circle: {},
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 	marker: {},
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 	textbox: {},
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 	uploadTrace: {}
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 };
 
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 L.DrawToolbar.include ({
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 	getModeHandlers: function(map) {
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 		return [{
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 			enabled: this.options.polyline,
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 			handler: new L.Draw.Polyline(map, this.options.polyline),
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 			title: L.drawLocal.draw.toolbar.buttons.polyline
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 		},{
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 			enabled: this.options.polygon,
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 			handler: new L.Draw.Polygon(map, this.options.polygon),
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 			title: L.drawLocal.draw.toolbar.buttons.polygon
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 		},{
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 			enabled: this.options.rectangle,
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 			handler: new L.Draw.Rectangle(map, this.options.rectangle),
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 			title: L.drawLocal.draw.toolbar.buttons.rectangle
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 		},{
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 			enabled: this.options.circle,
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 			handler: new L.Draw.Circle(map, this.options.circle),
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 			title: L.drawLocal.draw.toolbar.buttons.circle
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 		},{
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 			enabled: this.options.marker,
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 			handler: new L.Draw.Marker(map, this.options.marker),
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 			title: L.drawLocal.draw.toolbar.buttons.marker
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 		},{
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 			enabled: this.options.marker,
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 			handler: new L.Draw.MarkerTextBox(map, this.options.marker),
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 			title: 'Write text'
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 		}];
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 	}
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 });
 
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 class DrawTools extends Component {
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 	_onCreated = (e) => {
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 		// check if a drawn polyline has just one point in it
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 		if (e.layerType === 'polyline' && e.layer.getLatLngs().length === 1) {
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 			e.layer.remove();
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 			return;
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     }
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     if (e.layerType === 'marker') {
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       e.layer.bindTooltip('say hello to mr. akers');
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     }
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 		let type = e.layerType; // from the example; isn't used right now, but may be relevant in the future
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 		let layer = e.layer;		
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 		let geoJSON = layer.toGeoJSON();
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 		console.log(JSON.stringify(geoJSON, null, 4)); // makes the output readable in the console
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 	}
 
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 	render() {
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 		return (
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 			// "It's important to wrap EditControl component into FeatureGroup component from react-leaflet. The elements you draw will be added to this FeatureGroup layer, when you hit edit button only items in this layer will be edited."
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 			<FeatureGroup> 
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 				<EditControl
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 					position='topright'
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 					onCreated={this._onCreated}
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 					draw={{
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 						circle: {
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 							repeatMode: true, // allows using the tool again after finishing the previous shape
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 							shapeOptions: {
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 								color: '#f9f10c',
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 								opacity: 1
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 							}
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 						},
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 						rectangle: {
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 							repeatMode: true
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 						},
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 						polygon: {
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 							repeatMode: true,
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 							allowIntersection: false, // Restricts shapes to simple polygons
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 							drawError: {
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 								color: '#e1e100', // Color the shape will turn when intersects
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 								message: '<strong>Oh snap!<strong> you can\'t draw that!' // Message that will show when intersect
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 							},
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 							shapeOptions: {
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 								color: '#ed2572',
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 								opacity: 1
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 							}
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 						},
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 						polyline: {
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 							repeatMode: true,
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 							shapeOptions: {
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 								color: '#ed2572',
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 								opacity: 1
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 							}
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 						},
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 						marker: {
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 							repeatMode: true
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 						},
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 						circlemarker: false
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 					}}
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 				/>
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 			</FeatureGroup>
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 		)
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 	}
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 }
 
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 export default DrawTools;
\ No newline at end of file