A GeoNames powered geocoding search control for Leaflet.
It allows you to enter a placename, display a list of search results using GeoNames, and select a placename to zoom to.
Location markers remain on the map until the search field is cleared.
Click on icon to open / close unless alwaysOpen is set to true (in which case clicking on the icon does nothing).
See examples.
*Tested with Leaflet 1.1.0
From NPM:
npm install leaflet-geonamesInclude the CSS:
<link rel="stylesheet" href="L.Control.Geonames.css" />This control uses Google Material Icons by default.
Include the JavaScript:
<script src="L.Control.Geonames.min.js"></script>Example usage:
var control = L.control.geonames({
//position: 'topcenter', // In addition to standard 4 corner Leaflet control layout, this will position and size from top center.
position: 'topleft',
geonamesSearch: 'https://secure.geonames.org/searchJSON', // Override this if using a proxy to get connection to geonames.
geonamesPostalCodesSearch: 'https://secure.geonames.org/postalCodeSearchJSON', // Override this if using a proxy to get connection to geonames.
username: '', // Geonames account username. Must be provided.
maxresults: 5, // Maximum number of results to display per search.
zoomLevel: null, // Max zoom level to zoom to for location. If null, will use the map's max zoom level.
className: 'leaflet-geonames-icon', // Class for icon.
workingClass: 'leaflet-geonames-icon-working', // Class for search underway.
featureClasses: ['A', 'H', 'L', 'P', 'R', 'T', 'U', 'V'], // Feature classes to search against. See: http://www.geonames.org/export/codes.html.
baseQuery: 'isNameRequired=true', // The core query sent to GeoNames, later combined with other parameters above.
showMarker: true, // Show a marker at the location the selected location.
showPopup: true, // Show a tooltip at the selected location.
adminCodes: {}, // Filter results by the specified admin codes mentioned in `ADMIN_CODES`. Each code can be a string or a function returning a string. `country` can be a comma-separated list of countries.
bbox: {}, // An object in form of {east:..., west:..., north:..., south:...}, specifying the bounding box to limit the results to.
lang: 'en', // Locale of results.
alwaysOpen: false, // If true, search field is always visible.
enablePostalCodes: true, // If true, use postalCodesRegex to test user provided string for a postal code. If matches, then search against postal codes API instead.
postalCodesRegex: POSTALCODE_REGEX_US, // Regex used for testing user provided string for a postal code. If this test fails, the default geonames API is used instead.
title: 'Search by location name or postcode', // Search input title value.
placeholder: 'Enter a location name' // Search input placeholder text.
});
map.addControl(control);For mobile responsive view, use position: 'topcenter' and alwaysOpen: true options.
See mobile example
using a mobile device or emulator.
This control fires a search event with the value of search parameters:
control.on('search', function(e){console.log(e.params)});
results in
{q: "oregon", lang: "en"}
This control fires a select event when an option was selected from list,
with the full response JSON from geonames:
control.on('select', function(e){console.log(e.geoname)});
results in
{adminCode1: "OR", lng: "-120.50139", geonameId: 5744337, ...}
See changelog
Developed with support from the South Atlantic Landscape Conservation Cooperative, and maintained with support from Peninsular Florida LCC.
Some ideas derived from L.GeoSearch.