Leaflet.js - Mark Radius

Developer
Jon Beebe
Size
3,995 Kb
Views
2,024
  1. Leaflet.js - Mark Radius Previews
  2. Leaflet.js - Mark Radius HTML Codes
  3. Leaflet.js - Mark Radius CSS Codes
  4. Leaflet.js - Mark Radius JS Codes

How do I make an leaflet.js - mark radius?

Show your current location in Leaflet.js/OpenStreetMap and draw a circle around the point.Utilizes geoplugin.net & the browser's built in geolocation.. What is a leaflet.js - mark radius? How do you make a leaflet.js - mark radius? This script and codes were developed by Jon Beebe on 23 January 2023, Monday.

Leaflet.js - Mark Radius Previews
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Leaflet.js - Mark Radius - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Leaflet.js - Mark Radius</title> <script src="https://s.codepen.io/assets/libs/modernizr.js" type="text/javascript"></script> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css"> <link rel='stylesheet prefetch' href='http://cdn.leafletjs.com/leaflet-0.4/leaflet.css'> <link rel="stylesheet" href="css/style.css">
</head>
<body> <div class="form"> <label>Operating Radius: </label> <select name="radius"> <option value="5">5 Miles</option> <option value="10">10 Miles</option> <option value="25">25 Miles</option> </select>
</div>
<div id="map"> <div class="map-overlay"></div> <div class="map-container"></div>
</div> <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>
<script src='http://cdn.leafletjs.com/leaflet-0.4/leaflet.js'></script>
<script src='http://maps.stamen.com/js/tile.stamen.js'></script> <script src="js/index.js"></script>
</body>
</html>

Leaflet.js - Mark Radius - Script Codes CSS Codes

/* disable selection on all elements */
* { -webkit-user-select: none; user-select:none;
}
html, body { margin: 0; width: 100%; height: 100%; position: relative;
}
#map { position: absolute; top: 35px; bottom: 25px; right: 25px; left: 25px; box-shadow: 0 4px 16px 0 black;
}
#map > div { position: absolute; top: 0; width: 100%; height: 100%; z-index: 0;
}
#map.show-message { pointer-events: none;
}
#map .map-overlay { display: none; z-index: 2;
}
#map.show-message .map-overlay { display: block; background: rgba(0,0,0,0.5); text-align: center; color: #eee; text-shadow: 0 -1px 1px black;
}
.center { width: 100%; height: 100%; display: table; text-align: center;
}
.center > div { display: table-cell; vertical-align: middle;
}
.leaflet-marker-icon,
.leaflet-marker-shadow { -webkit-transition: margin 0.2s; -moz-transition: margin 0.2s; -o-transition: margin 0.2s; transition: margin 0.2s;
}
.map-container { background-image: url('https://dl.dropbox.com/u/14898/Photos/leaflet-screenshot.png'); background-size: cover;
}

Leaflet.js - Mark Radius - Script Codes JS Codes

// Animated marker via https://bl.ocks.org/4284949
L.Marker.prototype.animateDragging = function () { var iconMargin, shadowMargin; this.on('dragstart', function () { if (!iconMargin) { iconMargin = parseInt(L.DomUtil.getStyle(this._icon, 'marginTop')); shadowMargin = parseInt(L.DomUtil.getStyle(this._shadow, 'marginLeft')); } this._icon.style.marginTop = (iconMargin - 15) + 'px'; this._shadow.style.marginLeft = (shadowMargin + 8) + 'px'; }); return this.on('dragend', function () { this._icon.style.marginTop = iconMargin + 'px'; this._shadow.style.marginLeft = shadowMargin + 'px'; });
};
var Map = function(elem, lat, lng) { this.$el = $(elem); this.$overlay = this.$el.find('.map-overlay'); this.$map = this.$el.find('.map-container'); this.init(lat, lng);
};
Map.prototype.init = function(lat, lng) { this.lat = lat; this.lng = lng; this.map = L.map(this.$map[0]).setView([lat, lng], 13); var osmUrl='http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png'; var mapTiles = new L.TileLayer(osmUrl, { attribution: 'Map data &copy; ' + '<a href="http://openstreetmap.org">OpenStreetMap</a> contributors, ' + '<a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>', maxZoom: 18 }); this.map.addLayer(mapTiles);
};
Map.prototype.setCircle = function(latLng, meters) { if(!this.circle) { this.circle = L.circle(latLng, meters, { color: 'red', fillColor: '#f03', fillOpacity: 0.3 }).addTo(this.map); } else { this.circle.setLatLng(latLng); this.circle.setRadius(meters); this.circle.redraw(); } this.map.fitBounds(this.circle.getBounds());
};
Map.prototype.setLatLng = function(latLng) { this.lat = latLng.lat; this.lng = latLng.lng; if(this.circle) { this.circle.setLatLng(latLng); }
};
Map.prototype.centerOnLocation = function(lat, lng) { var self = this; this.lat = lat; this.lng = lng; if(!this.marker) { this.marker = L.marker([this.lat, this.lng], { draggable: true }); this.marker.on('drag', function(event) { self.setLatLng(event.target.getLatLng()); }); this.marker .animateDragging() .addTo(this.map); } this.map.setView([this.lat, this.lng], 16); this.setCircle([this.lat, this.lng], this.milesToMeters(5));
};
Map.prototype.getCurrentLocation = function(success, error) { var self = this; var onSuccess = function(lat, lng) { success(new L.LatLng(lat, lng)); }; // get location via geoplugin.net. // Typically faster than browser's geolocation, but less accurate. var geoplugin = function() { jQuery.getScript('http://www.geoplugin.net/javascript.gp', function() { onSuccess(geoplugin_latitude(), geoplugin_longitude()); }); }; // get location via browser's geolocation. // Typically slower than geoplugin.net, but more accurate. var navGeoLoc = function() { navigator.geolocation.getCurrentPosition(function(position) { success(new L.LatLng(position.coords.latitude, position.coords.longitude)); }, function(positionError) { geoplugin(); //error(positionError.message); }); }; if(navigator.geolocation) { navGeoLoc(); } else { geoplugin(); }
};
// Overlay message methods
Map.prototype.dismissMessage = function() { this.$el.removeClass('show-message'); this.$overlay.html('');
};
Map.prototype.showMessage = function(html) { this.$overlay.html('<div class="center"><div>' + html + '</div></div>'); this.$el.addClass('show-message');
};
// Conversion Helpers
Map.prototype.milesToMeters = function(miles) { return miles * 1069;
};
jQuery(function($) { // clear than temporary background image $('.map-container').css('background', 'transparent'); var map = new Map('#map', 51.505, -0.09); map.showMessage('<p><span>Acquiring Current Location.</span><br /><br />' + '<span>Please ensure the app has permission to access your location.</span></p>'); map.getCurrentLocation(function(latLng) { map.centerOnLocation(latLng.lat, latLng.lng); map.dismissMessage(); }, function(errorMessage) { map.showMessage('<p><span>Location Error:</span><br /><br />' + '<span>' + errorMessage + '</span></p>'); }); var s = $('select').on('change', function(e) { var value = $(this).val(); var meters = map.milesToMeters(value); map.setCircle([map.lat, map.lng], meters); });
});
Leaflet.js - Mark Radius - Script Codes
Leaflet.js - Mark Radius - Script Codes
Home Page Home
Developer Jon Beebe
Username somethingkindawierd
Uploaded January 23, 2023
Rating 3.5
Size 3,995 Kb
Views 2,024
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