Question

var gmarkers1 = [];
var markers1 = [];
var infowindow = new google.maps.InfoWindow({
    content: ''
});
markers1 = [
    ['0', 'Title', 52.4357808, 4.991315699999973, 'car'],
    ['1', 'Title', 52.4357808, 4.981315699999973, 'third'],
    ['2', 'Title', 52.4555687, 5.039231599999994, 'car'],
    ['3', 'Title', 52.4555687, 5.029231599999994, 'second']
];

我找到了此脚本，如何将.txt文件中的数据导入markers1？

第二，如何显示带有document.getElementById的文本的选择？

如果我选择“汽车”以仅显示标题，则仅显示标题，如下所示：

<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>

完整脚本在这里 Google Map Pins - Filter by category

Answer 1

我尝试了以下代码

filterMarkers = function (category) {
    for (i = 0; i < markers1.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);
        }
        document.getElementById("demo").innerHTML = "You selected: " + marker[];
    }

<p id="demo"></p>

但是它让我[对象]

要阅读txt，我无法以某种方式传达。该文件将在文件服务器中

谢谢您的时间！

Google Maps Pins从.txt导入

1 个答案: