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I have a google maps implemented in my site with one array, like so:
var gmarkers1 = [];
var markers1 = [];
markers1 = [
['0', 'Title', 52.4357808, 4.991315699999973],
['1', 'Title', 52.4357808, 4.991315699999973],
['2', 'Title', 52.4555687, 5.039231599999994],
];
In this example there are 3 markers, but in reality there are a lot more. For my purpose, this is the only way to do it (one array).
Question: I want to be able to filter inside this array with a selectbox. So a user selects "car" from a select and Google Maps only shows the markers with a property (?) "car".
The Markers are shown like this:
for (i = 0; i < markers1.length; i++) {
var category;
var pos = new google.maps.LatLng(markers1[i][2], markers1[i][3]);
var content = markers1[i][1];
bounds.extend(pos);
marker1 = new google.maps.Marker({
position: pos,
map: map,
icon: image1
});
gmarkers1.push(marker1);
// [START]-Event listener to center view and go to position
google.maps.event.addListener(marker1, 'click', (function(marker1, content) {
return function() {
console.log('Gmarker 1 gets pushed')
infowindow.setContent(content);
infowindow.open(map, marker1);
map.panTo(this.getPosition());
map.setZoom(15);
}
})(marker1, content));
}
445
You should add category as marker property.
markers1 = [
['0', 'Title 1', 52.4357808, 4.991315699999973, 'car'],
['1', 'Title 2', 52.4357808, 4.981315699999973, 'third'],
['2', 'Title 3', 52.4555687, 5.039231599999994, 'car'],
['3', 'Title 4', 52.4555687, 5.029231599999994, 'second']
];
Create marker. Marker is object, so add category as property.
var category = markers1[i][4];
var pos = new google.maps.LatLng(markers1[i][2], markers1[i][3]);
marker1 = new google.maps.Marker({
position: pos,
map: map,
category: category,
icon: image1
});
And on select change, call function what checks if category is same as selected.
/**
* Function to filter markers by category
*/
filterMarkers = function(category)
{
for (i = 0; i < gmarkers1.length; i++) {
marker = gmarkers1[i];
// If is same category or category not picked
if(marker.category == category || category.length == 0)
{
marker.setVisible(true);
}
// Categories don't match
else
{
marker.setVisible(false);
}
}
}
Working example
var gmarkers1 = [];
var markers1 = [];
var infowindow = new google.maps.InfoWindow({
content: ''
});
// Our markers
markers1 = [
['0', 'Title 1', 52.4357808, 4.991315699999973, 'car'],
['1', 'Title 2', 52.4357808, 4.981315699999973, 'third'],
['2', 'Title 3', 52.4555687, 5.039231599999994, 'car'],
['3', 'Title 4', 52.4555687, 5.029231599999994, 'second']
];
/**
* Function to init map
*/
function initialize() {
var center = new google.maps.LatLng(52.4357808, 4.991315699999973);
var mapOptions = {
zoom: 12,
center: center,
mapTypeId: google.maps.MapTypeId.TERRAIN
};
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
for (i = 0; i < markers1.length; i++) {
addMarker(markers1[i]);
}
}
/**
* Function to add marker to map
*/
function addMarker(marker) {
var category = marker[4];
var title = marker[1];
var pos = new google.maps.LatLng(marker[2], marker[3]);
var content = marker[1];
marker1 = new google.maps.Marker({
title: title,
position: pos,
category: category,
map: map
});
gmarkers1.push(marker1);
// Marker click listener
google.maps.event.addListener(marker1, 'click', (function (marker1, content) {
return function () {
console.log('Gmarker 1 gets pushed');
infowindow.setContent(content);
infowindow.open(map, marker1);
map.panTo(this.getPosition());
map.setZoom(15);
}
})(marker1, content));
}
/**
* Function to filter markers by category
*/
filterMarkers = function (category) {
for (i = 0; i < gmarkers1.length; i++) {
marker = gmarkers1[i];
// If is same category or category not picked
if (marker.category == category || category.length === 0) {
marker.setVisible(true);
}
// Categories don't match
else {
marker.setVisible(false);
}
}
}
// Init map
initialize();#map-canvas {
width: 500px;
height: 500px;
}<script src="https://maps.googleapis.com/maps/api/js?key=&v=3.0&sensor=true&language=ee&dummy=dummy.js"></script>
<div id="map-canvas"></div>
<select id="type" onchange="filterMarkers(this.value);">
<option value="">Please select category</option>
<option value="second">second</option>
<option value="car">car</option>
<option value="third">third</option>
</select>EDIT for @Myoji comment
To use multiple categories on each marker, just add them as array and edit if condition on filterMarkers.
markers1 = [
['0', 'Title 1', 52.4357808, 4.991315699999973, ['car', 'second']],
['1', 'Title 2', 52.4357808, 4.981315699999973, ['third']],
['2', 'Title 3', 52.4555687, 5.039231599999994, ['car', 'third']],
['3', 'Title 4', 52.4555687, 5.029231599999994, ['second']]
];
And filterMarkers would be
/**
* Function to filter markers by category
*/
filterMarkers = function(category)
{
for (i = 0; i < gmarkers1.length; i++) {
marker = gmarkers1[i];
// If is same category or category not picked
if((typeof marker.category == 'object' && marker.category.indexOf(category) >= 0) || category.length == 0){
{
marker.setVisible(true);
}
// Categories don't match
else
{
marker.setVisible(false);
}
}
}
Working example
var gmarkers1 = [];
var markers1 = [];
var infowindow = new google.maps.InfoWindow({
content: ''
});
// Our markers
markers1 = [
['0', 'Title 1', 52.4357808, 4.991315699999973, ['car', 'second']],
['1', 'Title 2', 52.4357808, 4.981315699999973, ['third']],
['2', 'Title 3', 52.4555687, 5.039231599999994, ['car', 'third']],
['3', 'Title 4', 52.4555687, 5.029231599999994, ['second']]
];
/**
* Function to init map
*/
function initialize() {
var center = new google.maps.LatLng(52.4357808, 4.991315699999973);
var mapOptions = {
zoom: 12,
center: center,
mapTypeId: google.maps.MapTypeId.TERRAIN
};
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
for (i = 0; i < markers1.length; i++) {
addMarker(markers1[i]);
}
}
/**
* Function to add marker to map
*/
function addMarker(marker) {
var category = marker[4];
var title = marker[1];
var pos = new google.maps.LatLng(marker[2], marker[3]);
var content = marker[1];
marker1 = new google.maps.Marker({
title: title,
position: pos,
category: category,
map: map
});
gmarkers1.push(marker1);
// Marker click listener
google.maps.event.addListener(marker1, 'click', (function (marker1, content) {
return function () {
console.log('Gmarker 1 gets pushed');
infowindow.setContent(content);
infowindow.open(map, marker1);
map.panTo(this.getPosition());
map.setZoom(15);
}
})(marker1, content));
}
/**
* Function to filter markers by category
*/
filterMarkers = function (category) {
for (i = 0; i < gmarkers1.length; i++) {
marker = gmarkers1[i];
// If is same category or category not picked
if((typeof marker.category == 'object' && marker.category.indexOf(category) >= 0) || category.length == 0){
marker.setVisible(true);
}
// Categories don't match
else {
marker.setVisible(false);
}
}
}
// Init map
initialize();#map-canvas {
width: 500px;
height: 500px;
}<script src="https://maps.googleapis.com/maps/api/js?key=&v=3.0&sensor=true&language=ee&dummy=dummy.js"></script>
<div id="map-canvas"></div>
<select id="type" onchange="filterMarkers(this.value);">
<option value="">Please select category</option>
<option value="second">second</option>
<option value="car">car</option>
<option value="third">third</option>
</select>EDIT for @bluantinoo comment
/**
* Function to filter markers by category
*/
filterMarkers = function(category)
{
var bounds = new google.maps.LatLngBounds();
for (i = 0; i < gmarkers1.length; i++) {
marker = gmarkers1[i];
// If is same category or category not picked
if(marker.category == category || category.length == 0)
{
marker.setVisible(true);
bounds.extend(marker.getPosition());
}
// Categories don't match
else
{
marker.setVisible(false);
}
map.fitBounds(bounds);
}
}
Working example
var gmarkers1 = [];
var markers1 = [];
var infowindow = new google.maps.InfoWindow({
content: ''
});
// Our markers
markers1 = [
['0', 'Title 1', 52.4357808, 4.991315699999973, 'car'],
['1', 'Title 2', 52.4357808, 4.981315699999973, 'third'],
['2', 'Title 3', 52.4555687, 5.039231599999994, 'car'],
['3', 'Title 4', 52.4555687, 5.029231599999994, 'second']
];
/**
* Function to init map
*/
function initialize() {
var center = new google.maps.LatLng(52.4357808, 4.991315699999973);
var mapOptions = {
zoom: 12,
center: center,
mapTypeId: google.maps.MapTypeId.TERRAIN
};
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
for (i = 0; i < markers1.length; i++) {
addMarker(markers1[i]);
}
}
/**
* Function to add marker to map
*/
function addMarker(marker) {
var category = marker[4];
var title = marker[1];
var pos = new google.maps.LatLng(marker[2], marker[3]);
var content = marker[1];
marker1 = new google.maps.Marker({
title: title,
position: pos,
category: category,
map: map
});
gmarkers1.push(marker1);
// Marker click listener
google.maps.event.addListener(marker1, 'click', (function (marker1, content) {
return function () {
console.log('Gmarker 1 gets pushed');
infowindow.setContent(content);
infowindow.open(map, marker1);
map.panTo(this.getPosition());
map.setZoom(15);
}
})(marker1, content));
}
/**
* Function to filter markers by category
*/
filterMarkers = function(category)
{
var bounds = new google.maps.LatLngBounds();
for (i = 0; i < gmarkers1.length; i++) {
marker = gmarkers1[i];
// If is same category or category not picked
if(marker.category == category || category.length == 0)
{
marker.setVisible(true);
bounds.extend(marker.getPosition());
}
// Categories don't match
else
{
marker.setVisible(false);
}
map.fitBounds(bounds);
}
}
// Init map
initialize();#map-canvas {
width: 500px;
height: 500px;
}<script src="https://maps.googleapis.com/maps/api/js?key=&v=3.0&sensor=true&language=ee&dummy=dummy.js"></script>
<div id="map-canvas"></div>
<select id="type" onchange="filterMarkers(this.value);">
<option value="">Please select category</option>
<option value="second">second</option>
<option value="car">car</option>
<option value="third">third</option>
</select>If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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