谷歌地图不显示API标志 [英] Google maps api marker not showing

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本文介绍了谷歌地图不显示API标志的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我不能得到的标记,以显示在地图上。谁能帮我找出什么是错的,这将是一个巨大的帮助?

下面是code:

 函数初始化(){
    变种map_canvas提供=的document.getElementById('map_canvas提供');
    VAR myLatlng =新google.maps.LatLng(33.748995,-84.387982);
    VAR的MapOptions = {
        中心:myLatlng,
        变焦:11,
        mapTypeId设为:google.maps.MapTypeId.TERRAIN
    }
    VAR地图=新google.maps.Map(map_canvas提供,的MapOptions);
    TestMarker();
}//添加标记到页面功能。
功能addMarker(位置){
    标记=新google.maps.Marker({
        位置:位置,
        地图:地图
    });
}//测试addMarker功能
功能TestMarker(){
       亚特兰大=新google.maps.LatLng(33.748995,-84.387982);
       addMarker(亚特兰大);
}google.maps.event.addDomListener(窗口'负荷',初始化);


解决方案

您似乎缺少了 VAR 关键字在标记<前/ code>和亚特兰大变量。要解决,我还要宣布地图标记亚特兰大之外的变量初始化全局空间()功能,所以他们对其他功能进行访问。试试这个:

  VAR地图;
VAR标记;
VAR亚特兰大;函数初始化(){
    变种map_canvas提供=的document.getElementById('map_canvas提供');
    VAR myLatlng =新google.maps.LatLng(33.748995,-84.387982);
    VAR的MapOptions = {
        中心:myLatlng,
        变焦:11,
        mapTypeId设为:google.maps.MapTypeId.TERRAIN
    };
    地图=新google.maps.Map(map_canvas提供,的MapOptions);
    TestMarker();
}//添加标记到页面功能。
功能addMarker(位置){
    标记=新google.maps.Marker({
        位置:位置,
        地图:地图
    });
}//测试addMarker功能
功能TestMarker(){
       亚特兰大=新google.maps.LatLng(33.748995,-84.387982);
       addMarker(亚特兰大);
}google.maps.event.addDomListener(窗口'负荷',初始化);

I can not get the marker to show up on the map. Can anyone help me find out what is wrong that would be a huge help?

Here is the code:

function initialize() {
    var map_canvas = document.getElementById('map_canvas');
    var myLatlng = new google.maps.LatLng(33.748995, -84.387982);
    var mapOptions = {
        center: myLatlng,
        zoom: 11,
        mapTypeId: google.maps.MapTypeId.TERRAIN
    }
    var map = new google.maps.Map(map_canvas, mapOptions);
    TestMarker();    
}

// Function for adding a marker to the page.
function addMarker(location) {
    marker = new google.maps.Marker({
        position: location,
        map: map
    });
}

// Testing the addMarker function
function TestMarker() {
       Atlanta = new google.maps.LatLng(33.748995, -84.387982);
       addMarker(Atlanta);
}

google.maps.event.addDomListener(window, 'load', initialize);

解决方案

You appear to be missing the var keyword in front of the marker and Atlanta variables. To fix, I would also declare the map, marker and Atlanta variables outside of the initialize() function in the global space, so they are accessible to other functions. Try this:

var map;
var marker;
var Atlanta;

function initialize() {
    var map_canvas = document.getElementById('map_canvas');
    var myLatlng = new google.maps.LatLng(33.748995, -84.387982);
    var mapOptions = {
        center: myLatlng,
        zoom: 11,
        mapTypeId: google.maps.MapTypeId.TERRAIN
    };
    map = new google.maps.Map(map_canvas, mapOptions);
    TestMarker();    
}

// Function for adding a marker to the page.
function addMarker(location) {
    marker = new google.maps.Marker({
        position: location,
        map: map
    });
}

// Testing the addMarker function
function TestMarker() {
       Atlanta = new google.maps.LatLng(33.748995, -84.387982);
       addMarker(Atlanta);
}

google.maps.event.addDomListener(window, 'load', initialize);

这篇关于谷歌地图不显示API标志的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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