Google Maps API v3：如何以 2 个动态地址为中心？

Question

在过去的 8 个小时里，我一直在尝试做一些极其简单的事情。

问题是我对 JavaScript 和 Google Maps API 都不是很熟悉。

我要做的就是找到 2 个不同位置的中心并相应地缩放。

这两个地址是动态的，因为用户将输入信息。

我的所有搜索都以 API v2 或固定位置结束。

有人可以帮帮我吗？

我真的很感激！

提前非常感谢！！！

<script src="https://maps.googleapis.com/maps/api/js?sensor=false&region=BR"></script>
<script>
  var geocoder;
  var map;
  var query = "<?php echo $endCercompleto; ?>";
  var query2 = "<?php echo $endFescompleto; ?>";
  function initialize() {
    geocoder = new google.maps.Geocoder();
    var mapOptions = {
      zoom:8,
      center: new google.maps.LatLng(0, 0),
      mapTypeId: google.maps.MapTypeId.ROADMAP
    }
    map = new google.maps.Map(document.getElementById('map_canvas'), mapOptions);
        codeAddress();
  }
  function codeAddress() {
    var address = query;
    geocoder.geocode( { 'address': address}, function(results, status) {
      if (status == google.maps.GeocoderStatus.OK) {
        var marker = new google.maps.Marker({
            map: map,
            position: results[0].geometry.location,
        });
      } else {
        alert('Geocode was not successful for the following reason: ' + status);
      }
    });
    var address2 = query2;
    geocoder.geocode( { 'address': address2}, function(results, status) {
      if (status == google.maps.GeocoderStatus.OK) {
        var marker2 = new google.maps.Marker({
            map: map,
            position: results[0].geometry.location,
        });
      } else {
        alert('Geocode was not successful for the following reason: ' + status);
      }
    });
</script>

Answer 1

这应该可行。请注意，每个地理编码器回调例程中的 bounds.extend 和 map.fitBounds。你不知道哪个会先完成。

proof of concept fiddle

<script src="https://maps.googleapis.com/maps/api/js?region=BR"></script>
<script>
  var geocoder;
  var bounds = new google.maps.LatLngBounds();
  var map;
  var query = "<?php echo $endCercompleto; ?>";
  var query2 = "<?php echo $endFescompleto; ?>";
  function initialize() {
    geocoder = new google.maps.Geocoder();
    var mapOptions = {
      zoom:8,
      center: new google.maps.LatLng(0, 0),
      mapTypeId: google.maps.MapTypeId.ROADMAP
    }
    map = new google.maps.Map(document.getElementById('map_canvas'), mapOptions);
        codeAddress();
  }
  function codeAddress() {
    var address = query;
    geocoder.geocode( { 'address': address}, function(results, status) {
      if (status == google.maps.GeocoderStatus.OK) {
        bounds.extend(results[0].geometry.location);
        var marker = new google.maps.Marker({
            map: map,
            position: results[0].geometry.location,
        });
        map.fitBounds(bounds);
      } else {
        alert('Geocode was not successful for the following reason: ' + status);
      }
    });
    var address2 = query2;
    geocoder.geocode( { 'address': address2}, function(results, status) {
      if (status == google.maps.GeocoderStatus.OK) {
        bounds.extend(results[0].geometry.location);
        var marker2 = new google.maps.Marker({
            map: map,
            position: results[0].geometry.location,
        });
        map.fitBounds(bounds);
      } else {
        alert('Geocode was not successful for the following reason: ' + status);
      }
    });
}
</script>