How do I create a map with a proximate circumference? [closed]

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How do I create a map with a proximate circumference? [closed]

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#1 by (4 votes)
#2 by (3 votes)

3

<script type="text/javascript" src="http://maps.google.com/maps/api/js?key=AIzaSyDUZgjcLfmsJUX7oKmJhG_jqJK_gK0xkng"></script><bodyonload="initialize();">
    <?php
    $geocode=file_get_contents('http://maps.google.com/maps/api/geocode/json?address='.urlencode($imovel->endereco).'&sensor=false');
    $output= json_decode($geocode);
    if($output->status === 'ZERO_RESULTS'){
    } else {
        $lat = $output->results[0]->geometry->location->lat;
        $long = $output->results[0]->geometry->location->lng;
        ?>
        <script type="text/javascript">
        var marker;
        function initialize() {
            var myLatlng = new google.maps.LatLng(<?php echo $lat; ?>, <?php echo $long; ?>);
            var myOptions = {
            zoom: 15,
            center: myLatlng,
            scrollwheel: false,
            mapTypeId: google.maps.MapTypeId.ROADMAP
            }
            var map = new google.maps.Map(document.getElementById("mapa"), myOptions);
            marker = new google.maps.Marker({
              position: myLatlng, 
              map: map,
              icon: "imagens/flag.png"
            });
            var infowindow = new google.maps.InfoWindow({ 
                content: "<?php echo $imovel->endereco; ?>"
            });
            google.maps.event.addListener(marker, 'click', function(){
                infowindow.open(map,marker);
            });       
        }
        </script>
    <?php } ?>
    <div id="mapa"></div>
</body>

google-maps angular-google-maps maps-javascript-api

asked by anonymous 16.06.2017 / 16:21

2 answers

4

Basically you need to create a simple Circle , as shown on documentation , and set a value for the radius property. For 2km, you need to put 2000 which is equivalent to 2 thousand meters. See:

 var cityCircle = new google.maps.Circle({
            strokeColor: '#FF0000',
            strokeOpacity: 0.8,
            strokeWeight: 2,
            fillColor: '#FF0000',
            fillOpacity: 0.35,
            map: map,
            center: {lat: -23.560362, lng: -46.587773},
            radius: (2 * 1000)
          });

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <title>Circles</title>
    <style>
      #map {
        height: 100%;
      }
      html, body {
        height: 100%;
        margin: 0;
        padding: 0;
      }
    </style>
  </head>
  <body>
    <div id="map"></div>
    <script>
      var citymap = {
        sampa: {
          center: {lat: -23.560362, lng: -46.587773}
        }
      };

      function initMap() {
        // Cria o mapa
        var map = new google.maps.Map(document.getElementById('map'), {
          zoom: 14,
          center: {lat: -23.560362, lng: -46.587773},
          mapTypeId: 'terrain'
        });

        // Construct the circle for each value in citymap.
        // Note: We scale the area of the circle based on the population.
        for (var city in citymap) {
          // Add the circle for this city to the map.
          var cityCircle = new google.maps.Circle({
            strokeColor: '#FF0000',
            strokeOpacity: 0.8,
            strokeWeight: 2,
            fillColor: '#FF0000',
            fillOpacity: 0.35,
            map: map,
            center: {lat: -23.560362, lng: -46.587773},
            radius: (1 * 1000)
          });
        }
      }
    </script>
    <script async defer
    src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDfXgMUO82be1sHgJlXHdg4JkTgN7qtm-M&callback=initMap">
    </script>
  </body>
</html>

16.06.2017 / 21:34

Letting the height of the div equal the width using only css problem to reset CountDownTimer

score 3 · Accepted Answer

You need to add an object of type google.maps.Circle .

The following example demonstrates this functionality:

function initialize() {
    var map = new google.maps.Map(document.getElementById("map_canvas"),
    {
        zoom: 13,
        center: new google.maps.LatLng(-22.91711261458102, -43.16944599151611),
        mapTypeId: google.maps.MapTypeId.SATELLITE
    });

    var circulo = new google.maps.Circle(
    {
        map: map,
        center: new google.maps.LatLng(-22.91711261458102, -43.16944599151611),
        radius: 1000, // 1000 metros = 1k.
        strokeColor: "black",
        fillColor: "white",
        fillOpacity: 0.25,
    });
}

<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js"></script><bodyonload="initialize()">
<div id="map_canvas" style="height: 100vh; width:100vw"></div>
</body>