在Google地圖中按緯度/經度刪除標記

Question

我的谷歌地圖上有一組標記。 在地圖的右側，我列出了地圖上標記的地點。 現在，單擊位置后，便應更改圖釘/標記的顏色。 為此，我想我將刪除緯度和經度的標記（單擊位置鏈接后會得到此標記），並放置一個具有新圖像的新標記。 但是我不知道如何刪除經緯度或按位置的標記。 請幫忙。

<script type='text/javascript'>
$(document).ready(function() {
    var map = null;
    var infowindow = new google.maps.InfoWindow();
    function createMarker(place) {

        var marker = new google.maps.Marker({
            map: map
        });

        var address = place.formatted_address;



        marker.setPosition(place.geometry.location);
        marker.setTitle(address);
        marker.setVisible(true);
        address = address + '<a href="#" class="link" title="Been there" alt="' + address + '">B</a>&nbsp;<a class="link" href="#" title="Want to go" alt="' + address + '">W</a>&nbsp;<a class="link" href="#" alt="' + address + '" title="Favourite">F</a>';
        $('#trip_location').append(address);
        google.maps.event.addListener(marker, 'click', function(e) {
            infowindow.setContent('<div><strong>' + marker.title + '</strong><br>');
            infowindow.open(map, marker);
        });
        google.maps.event.trigger(marker, 'click');
    }



    function initialize() {
        var mapOptions = {
            center: new google.maps.LatLng(-33.8688, 151.2195),
            zoom: 13,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        map = new google.maps.Map(document.getElementById('map_canvas'),
                mapOptions);
        var input = /** @type {HTMLInputElement} */(document.getElementById('searchTextField'));

        var autocomplete = new google.maps.places.Autocomplete(input);
        autocomplete.bindTo('bounds', map);
        google.maps.event.addListener(autocomplete, 'place_changed', function() {
            infowindow.close();
            input.className = '';
            var place = autocomplete.getPlace();
            if (!place.geometry) {
                // Inform the user that the place was not found and return.
                input.className = 'notfound';
                return;
            }
            var location = place.geometry.location;
            var address = place.formatted_address;
            createMarker(place);
        });
    }

    $('#trip_location').on('click', '.link', function(e) {

        e.preventDefault();
        var location = $(this).attr('alt');
    });


    $('.clear').click(function() {
        $('#searchTextField').val('');
    });
    google.maps.event.addDomListener(window, 'load', initialize);
});

我將通過Google的自動完成功能將多個標記添加到Google地圖。 標記的位置將在頁面右側列出。 用戶單擊位置時，應替換標記圖標。

Answer 1

您可以保留對與地點關聯的每個標記的引用，而不是刪除和替換，只需在其上調用setIcon並傳遞新設置即可。 查看文件： https : //developers.google.com/maps/documentation/javascript/reference#Marker

編輯：有問題的新代碼。

添加了標記數組以包含標記，使用了data屬性來保存標記id，並在觸發鏈接元素click事件時拉出markerid屬性值。

注意：未經測試，因此可能有問題。

$(document).ready(function() {
    var map = null;
    var markers = [];
    var infowindow = new google.maps.InfoWindow();
    function createMarker(place) {

        var marker = new google.maps.Marker({
            map: map
        });

        var address = place.formatted_address;



        marker.setPosition(place.geometry.location);
        marker.setTitle(address);
        marker.setVisible(true);

        markers.push(marker);
        address = address + '<a href="#" class="link" title="Been there" alt="' + address + '" data-markerid='" + (markers.length - 1) + "'>B</a>&nbsp;<a class="link" href="#" title="Want to go" alt="' + address + '">W</a>&nbsp;<a class="link" href="#" alt="' + address + '" title="Favourite" data-markerid='" + (markers.length - 1) + "'>F</a>';


        $('#trip_location').append(address);
        google.maps.event.addListener(marker, 'click', function(e) {
            infowindow.setContent('<div><strong>' + marker.title + '</strong><br>');
            infowindow.open(map, marker);
        });
        google.maps.event.trigger(marker, 'click');
    }



    function initialize() {
        var mapOptions = {
            center: new google.maps.LatLng(-33.8688, 151.2195),
            zoom: 13,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        map = new google.maps.Map(document.getElementById('map_canvas'),
                mapOptions);
        var input = /** @type {HTMLInputElement} */(document.getElementById('searchTextField'));

        var autocomplete = new google.maps.places.Autocomplete(input);
        autocomplete.bindTo('bounds', map);
        google.maps.event.addListener(autocomplete, 'place_changed', function() {
            infowindow.close();
            input.className = '';
            var place = autocomplete.getPlace();
            if (!place.geometry) {
                // Inform the user that the place was not found and return.
                input.className = 'notfound';
                return;
            }
            var location = place.geometry.location;
            var address = place.formatted_address;
            createMarker(place);
        });
    }

    $('#trip_location').on('click', '.link', function(e) {

        e.preventDefault();
        var location = $(this).attr('alt');
        var markerid = $(this).data('markerid');
        var marker = markers[markerid];
    });


    $('.clear').click(function() {
        $('#searchTextField').val('');
    });
    google.maps.event.addDomListener(window, 'load', initialize);
});