Been looking at the link below to centre the map on a specific location as my notes state.
I can center the map with a pin but can't retreive the lat n lng.
Anyone know how to retrieve the lat n lng from google maps with an update to the html code listed here
in livecode?
Or perhaps another way to centre and retrieve lat n lng with livecode?
I'd be happy to chase down any leads and post my findings.
tia
Set Centre as home:
google-developers.appspot.com/maps/documentation/javascript/examples/control-custom-state
https://google-developers.appspot.com/m ... stom-state
I want to
Over lay a pointer on android browser to point to center so I can see the centre position of the map
move map behind to place on exact map position (say specific street corner or park or bike path entrance)
then get lat lng
then send to bike riding buddies to meet me here
Code: Select all
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Google Maps JavaScript API v3 Example: Custom Controls</title>
<link href="https://google-developers.appspot.com/maps/documentation/javascript/examples/default.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var map;
var chicago = new google.maps.LatLng(41.850033, -87.6500523);
/**
* The HomeControl adds a control to the map that
* returns the user to the control's defined home.
*/
// Define a property to hold the Home state
HomeControl.prototype.home_ = null;
// Define setters and getters for this property
HomeControl.prototype.getHome = function() {
return this.home_;
}
HomeControl.prototype.setHome = function(home) {
this.home_ = home;
}
function HomeControl(controlDiv, map, home) {
// We set up a variable for this since we're adding
// event listeners later.
var control = this;
// Set the home property upon construction
control.home_ = home;
// Set CSS styles for the DIV containing the control
// Setting padding to 5 px will offset the control
// from the edge of the map
controlDiv.style.padding = '5px';
// Set CSS for the control border
var goHomeUI = document.createElement('div');
goHomeUI.style.backgroundColor = 'white';
goHomeUI.style.borderStyle = 'solid';
goHomeUI.style.borderWidth = '2px';
goHomeUI.style.cursor = 'pointer';
goHomeUI.style.textAlign = 'center';
goHomeUI.title = 'Click to set the map to Home';
controlDiv.appendChild(goHomeUI);
// Set CSS for the control interior
var goHomeText = document.createElement('div');
goHomeText.style.fontFamily = 'Arial,sans-serif';
goHomeText.style.fontSize = '12px';
goHomeText.style.paddingLeft = '4px';
goHomeText.style.paddingRight = '4px';
goHomeText.innerHTML = '<b>Home</b>';
goHomeUI.appendChild(goHomeText);
// Set CSS for the setHome control border
var setHomeUI = document.createElement('div');
setHomeUI.style.backgroundColor = 'white';
setHomeUI.style.borderStyle = 'solid';
setHomeUI.style.borderWidth = '2px';
setHomeUI.style.cursor = 'pointer';
setHomeUI.style.textAlign = 'center';
setHomeUI.title = 'Click to set Home to the current center';
controlDiv.appendChild(setHomeUI);
// Set CSS for the control interior
var setHomeText = document.createElement('div');
setHomeText.style.fontFamily = 'Arial,sans-serif';
setHomeText.style.fontSize = '12px';
setHomeText.style.paddingLeft = '4px';
setHomeText.style.paddingRight = '4px';
setHomeText.innerHTML = '<b>Set Home</b>';
setHomeUI.appendChild(setHomeText);
// Setup the click event listener for Home:
// simply set the map to the control's current home property.
google.maps.event.addDomListener(goHomeUI, 'click', function() {
var currentHome = control.getHome();
map.setCenter(currentHome);
});
// Setup the click event listener for Set Home:
// Set the control's home to the current Map center.
google.maps.event.addDomListener(setHomeUI, 'click', function() {
var newHome = map.getCenter();
control.setHome(newHome);
});
}
function initialize() {
var mapDiv = document.getElementById('map_canvas');
var myOptions = {
zoom: 12,
center: chicago,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(mapDiv, myOptions);
var marker=new google.maps.Marker({position:myOptions.center, map:map});
google.maps.event.addListener(map, 'center_changed', function(){
marker.setPosition(map.getCenter());
});
// Create the DIV to hold the control and
// call the HomeControl() constructor passing
// in this DIV.
var homeControlDiv = document.createElement('div');
var homeControl = new HomeControl(homeControlDiv, map, chicago);
homeControlDiv.index = 1;
map.controls[google.maps.ControlPosition.TOP_RIGHT].push(homeControlDiv);
}
</script>
</head>
<body onLoad="initialize()">
<div id="map_canvas"></div>
</body>
</html>