Just a quick question, if anyone has ever replaced the Mapbox default marker with a Maki icon. I've only seen examples of using Maki icons for point tilesets/layers, but I'm wanting to use it for non-tileset features, specifically replacing the marker that adds after geocoding, at the location of the address just geocoded.
Or, trying to find something that is similar to Google Maps symbols below. Any suggestions appreciated.
var pinImage = {
path: google.maps.SymbolPath.CIRCLE,
fillColor: '#ff4b00',
fillOpacity: .9,
scale: 5,
strokeColor: '#CDDC39',
strokeWeight: 0,
strokeOpacity: .5
}
The MapboxGeocoder control has a marker option https://github.com/mapbox/mapbox-gl-geocoder/blob/master/API.md#parameters which controls the marker placed on the map when you select a result.
There is an example at https://docs.mapbox.com/mapbox-gl-js/example/custom-marker-icons/ to create a Marker with a custom icon.
So you could create an HTML Element which contains either an SVG or PNG icon from Maki and use that as your element in your custom Marker passed to the MapboxGeocoder control.
I think this sample is what you are looking for Use a custom render function with a geocoder
It allows you to add a custom render function including the icon...
var geocoder = new MapboxGeocoder({
accessToken: mapboxgl.accessToken,
types: 'poi',
// see https://docs.mapbox.com/api/search/#geocoding-response-object for information about the schema of each response feature
render: function(item) {
// extract the item's maki icon or use a default
var maki = item.properties.maki || 'marker';
return (
"<div class='geocoder-dropdown-item'><img class='geocoder-dropdown-icon' src='https://unpkg.com/#mapbox/maki#6.1.0/icons/" +
maki +
"-15.svg'><span class='geocoder-dropdown-text'>" +
item.text +
'</span></div>'
);
},
mapboxgl: mapboxgl
});
map.addControl(geocoder);
Related
I generated a list of Maki Icons I want to use via the original icon editor.
drawMarkers() {
let self = this;
const mapboxgl = require("mapbox-gl");
let data = this.draw.getAll();
data.features.forEach((feature) => {
if (feature.geometry.type == "Point") {
var icon = feature.properties.icon;
var title = feature.properties.title;
if (typeof title === "undefined") {
title = "Info";
} else {
var popup = new mapboxgl.Popup({ offset: 25 }) // add popups
.setHTML(`<h3>${title}</h3>`);
var marker = new mapboxgl.Marker({
color: '#333',
draggable: false,
scale: 1,
})
.setLngLat(feature.geometry.coordinates)
.setPopup(popup)
.addTo(self.map);
}
});
The Markers are showed correctly on the Mapbox.
The GeoJSON is like this:
"type":"FeatureCollection",
"features":[
{
"id":"c749de6a6eac6b1cfdda890e7c665e0d",
"type":"Feature",
"properties":{
"icon":"ferry",
"title":"This should show a Ferry icon",
"portColor":"#d9eb37"
},
"geometry":{
"coordinates":[
6.12,
22.44
],
"type":"Point"
}
},
I want the Maki Icons also added in the Marker, but I cannot find any documentation of how icons can be used inside the Mapbox Marker.
Who can help me out? I'm using the Mapbox GL JS for Web.
It depends on how you've created your map. You can either:
Create your own map style using the Maki icons you've generated. This is done using the Mapbox studio to create your custom map style, then adding it to your application.
Create custom markers that use the maki .svg files you've created. This can be done by passing a custom element to the new mapboxgl.Marker() function. So, instead of:
var marker = new mapboxgl.Marker({
color: '#333',
draggable: false,
scale: 1,
})
you would pass:
var marker = new mapboxgl.Marker(customElement)
where customElement uses the data from your icons variable.
I'm not sure if you're using plain JS here, but there's some examples on the mapbox docs of ways you can do this.
Because you've generated your own list of Maki icons, I'd suggest downloading them and maybe host them somewhere so that you can get away with creating your markers with <img src="link to hosted maki marker"/> or something of the sort
I'm new to mapbox GL JS and am following this example:
Add custom markers in Mapbox GL JS
https://www.mapbox.com/help/custom-markers-gl-js/
Let's say I modify the example above to include 100 different animal markers. How do I change the draggable property of a specific marker after it has been added to the map?
Example: Change the draggable property of the dog marker.
It would be nice to do something like this:
map.getMarker('dog').setDraggable(true);
I don't see a way to query any of the markers added to my map or modify a specific marker's properties like setLatLng, setDraggable after they have been added to a map. There is no method to get the collection of markers added to a map. Thanks for any help!
For change marker property like draggable check its api. IE https://www.mapbox.com/mapbox-gl-js/api/#marker#setdraggable
Mapbox custom marker is build by html element. If you want to change visual display of custom marker element, you should update Its inside html. For example, here are 2 functions I use to create a div with image background then return it as a image marker
/**
* #function CustomMarkerWithIcon(): constructor for CustomMarker with image icon specify
* #param lnglat: (LngLat) position of the marker
* map: (Map) map used on
* icon: (image) object for custom image
*/
function CustomMarkerWithIcon(lnglat, map, icon) {
var el = document.createElement('div');
el.className = 'marker';
el.style.backgroundImage = 'url("' + icon.url + '")';
el.style.backgroundSize = 'cover';
el.style.width = icon.size.width;
el.style.height = icon.size.height;
el.style.zIndex = icon.zIndex;
return new mapboxgl.Marker(el)
.setLngLat(lnglat)
.addTo(map);
}
/**
* #function ChangeMarkerIcon(): change marker icon
* #param marker: (marker) marker
* icon: (image) object for custom image
*/
function ChangeMarkerIcon(marker, icon) {
var el = marker.getElement();
el.style.backgroundImage = 'url("' + icon.url + '")';
}
You're right: Mapbox GL JS doesn't store references to markers. However, you can store your own references to the markers in an array at the time that you generate them.
In this example below, I am looping over a set of GeoJSON point features and creating a custom HTML marker for each:
let markersArray = [];
geojson.features.forEach(feature => {
// create a HTML element for each feature
let el = document.createElement("div");
el.className = "marker";
el.innerHTML = `
<img src="custom-marker.png" height="20px" width="20px" />
<span class="marker-label">${feature.properties.name}</span>
`;
// make a marker for each feature and add to the map
let marker = new mapboxgl.Marker({
element: el,
anchor: "top"
})
.setLngLat(feature.geometry.coordinates)
.addTo(map);
// add to my own array in an object with a custom 'id' string from my geojson
markersArray.push({
id: feature.properties.id,
marker
});
});
This id string can be whatever you want. You can even store other parameters if you want to be able to query other things, like latitude/longitude:
markersArray.push({
id: feature.properties.id,
coordinates: feature.geometry.coordinates,
marker
});
Then, if I want to access the marker's instance members (like setDraggable), I can use Array.find() to return the first instance that matches my search parameters in markersArray:
let someIdQuery = "some-id";
let queriedMarkerObj = markersArray.find(
marker => marker.id === someIdQuery
);
queriedMarkerObj.marker.setDraggable(true);
(Note that Array.find() just returns the first instance in the array that matches your condition. Use something like Array.filter() if you want to be able to query for more than one marker.)
I am exporting Google Directions routes as KML and displaying them on a Mapbox map by reading them with Omnivore and adding them to the map,
The Google KML stores each route as two Places (the start and end points) and one LineString (the route). In Mapbox I would like to show only the routes, that is to filter out the markers somehow. I'm displaying markers out of my own database and the Google markers clutter it up.
Here is my code. I change the styling of the LineStrings just to show that I can, but do not know what magic call(s) to make to not display the Points.
Thanks.
runLayer = omnivore.kml('data/xxxx.kml')
.on('ready', function() {
var llBnds = runLayer.getBounds();
map.fitBounds(llBnds);
this.eachLayer(function (layer) {
if (layer.feature.geometry.type == 'LineString') {
layer.setStyle({
color: '#4E3508',
weight: 4
});
}
if (layer.feature.geometry.type == 'Point') {
//
// Do something useful here to not display these items!!
//
}
});
})
.addTo(map);
Welcome to SO!
Many possible solutions:
Most straight forward from the code you provided, just use the removeLayer method on your runLayer Layer Group when you get a 'Point' feature.
Cleaner solution would be to filter out those features before they are even converted into Leaflet layers, through a custom GeoJSON Layer Group passed as 3rd argument of omnivore.kml, with a specified filter option:
var customLayer = L.geoJSON(null, {
filter: function(geoJsonFeature) {
// my custom filter function: do not display Point type features.
return geoJsonFeature.geometry.type !== 'Point';
}
}).addTo(map);
var runLayer = omnivore.kml('data/xxxx.kml', null, customLayer);
You can also use the style and/or onEachFeature options on customLayer to directly apply your desired style on your LineString.
I am working with the application which uses leaflet api.
Introduction
I needed to draw different types of fences, using decorators i can somewhat apply good visuals to the polylines but not much.
Problem
I was willing to show twisted wires instead of dashes, dots or plain lines and I know the twisted wire line will be an image but can't find help about applying custom css to polylines.
Script Example
var fence2Icon = L.icon({
iconUrl: 'xxxx.png',
iconSize: [5, 20]
iconAnchor: [5, 18]
});
// Add coordinate to the polyline
var polylineFence2 = new L.Polyline([], { color: 'red' });
function fencePlace2(e) {
// New marker on coordinate, add it to the map
new L.Marker(e.latlng, { icon: fence2Icon, draggable: false }).addTo(curr);
// Add coordinate to the polyline
polylineFence2.addLatLng(e.latlng).addTo(curr);
var decorator = L.polylineDecorator(polylineFence2, {
patterns:[{offset:5,repeat:'20px',symbol:new L.Symbol.Dash({pixelSize:5})
}]
}).addTo(curr);
}
L.easyButton('fa-flash', function () {
$('.leaflet-container').css('cursor', 'crosshair');
map.on('click', fencePlace2);
polylineFence2 = new L.Polyline([], { color: 'red' });
}).addTo(map);
If someone know anything about polyline or another way please do help.
Thanks for your time:-)
You can add a class in the options of your polyline ...
var polyline = L.polyline(latlngs, { className: 'my_polyline' }).addTo(map);
and add your own settings in the CSS ...
.my_polyline {
stroke: green;
fill: none;
stroke-dasharray: 10,10;
stroke-width: 5;
}
Here is an example: http://jsfiddle.net/FranceImage/9dggfhnc/
You can also access some options directly ...
var polyline = L.polyline(latlngs, { dashArray: '10,10' }).addTo(map);
See Path Options
If you create a polyline you're in fact adding an element to the SVG element which Leaflet uses to draw it's overlays. Styling SVG path elements is different from styling regular HTML elements. There's no such thing as border and background-color etc. It has different properties, if you're interested here's a nice read on the matter:
https://developer.mozilla.org/en-US/docs/Web/SVG/Tutorial/Fills_and_Strokes
You can style Leaflet's path elements when you instanciate them via options or via CSS using the properties (related to styling) described in the documentation here:
http://leafletjs.com/reference.html#path
Via options:
new L.Polyline([...], {
weight: 3,
color: 'red',
opacity: 0.5
}).addTo(map);
Via CSS:
new L.Polyline([...], {
className: 'polyline'
}).addTo(map);
.polyline {
weight: 3,
color: red,
opacity: 0.5
}
However, what you want, using an image simply isn't possible. You can use images as fill for SVG paths, but it would be impossible for your usecase. You'de need to add a pattern definition to the SVG Leaflet is using and then you could use that id as the fill property as outlined in this answer:
https://stackoverflow.com/a/3798797/2019281 but will always fill/tile the image horizontally which won't work if your polyline is vertical.
How to add a custom icon in mapbox?
var map = L.mapbox.map('map', 'mapbox.streets').setView([0, 0], 1);
var geojson = { type: 'LineString', coordinates: value};
var start = value[0];
var end = value[value.length-1];
geojson.coordinates.push((start,end).slice());
// Add this generated geojson object to the map.
L.geoJson(geojson).addTo(map);
// Create a marker and add it to the map.
var marker = L.marker(end, {
icon: L.mapbox.marker.icon({
"iconUrl": "https://www.mapbox.com/mapbox.js/assets/images/astronaut2.png"
})
}).addTo(map);
});
I can't able to add a custom icon in above code. Please help me..
Thanks.
First you will have to create a var, for example 'myIcon', then simply replace the iconUrl with a path that specifies the custom marker you want to use.
You can use the iconSize option to specify the size of your marker
You can use the iconAnchor option to specify which part of your masker should be placed on the latlng.
myIcon=L.icon({
iconUrl:'img/custom-marker.png',
iconSize: [25,30]
});
Then create the marker, set the lat lng where you want your marker to be placed. And specify the icon you want to use.
var Marker = new L.Marker ( latlng, {icon:myIcon});
Finally add your market to the map:
map.addlayer(Marker);