maptest

app.js

var win1 = Titanium.UI.createWindow({  
    title:'Map1',
    navBarHidden:true
});

function findZoomRegion(points) {
        var tmpDeltatLat = 0, tmpDeltatLong = 0, maxDeltatLat = 0, maxDeltatLong = 0, centerLat = 0, centerLong = 0;
 
        for(var i = 0; i <= Math.floor(points.length / 2); i++) {
            for(var j = 3; j >= Math.floor(points.length / 2); j--) {
                if(j != i) {
                    tmpDeltatLat = Math.abs(Math.abs(points[i].latitude) - Math.abs(points[j].latitude));
                    if(tmpDeltatLat > maxDeltatLat) {
                        maxDeltatLat = tmpDeltatLat;
                        centerLat = Math.min(points[i].latitude, points[j].latitude) + maxDeltatLat / 2;
                    }
                    tmpDeltatLong = Math.abs(Math.abs(points[i].longitude) - Math.abs(points[j].longitude));
                    if(tmpDeltatLong > maxDeltatLong) {
                        maxDeltatLong = tmpDeltatLong;
                        centerLong = Math.min(points[i].longitude, points[j].longitude) + maxDeltatLong / 2;
                    }
                }
            }
        }
        var region = {
            latitude : centerLat,
            longitude : centerLong,
            latitudeDelta : maxDeltatLat/4,
            longitudeDelta : maxDeltatLong/4
        };
        return region;
    }
var Points = [{latitude:42.813121,longitude:-70.866047},{latitude:41.813121,longitude:-72.875304},{latitude:40.813121,longitude:-73.866047},{latitude:43.813121,longitude:-61.866047}];
var point1 = Titanium.Map.createAnnotation({
	latitude:42.813121,
	longitude:-70.866047,
	title:"aaa",
	subtitle:'aaA',
	pincolor:Titanium.Map.ANNOTATION_RED,
	animate:true,
	leftButton: '../images/appcelerator_small.png',
	myid:1 // CUSTOM ATTRIBUTE THAT IS PASSED INTO EVENT OBJECTS
});
var point2 = Titanium.Map.createAnnotation({
	latitude:41.813121,
	longitude:-72.875304,
	title:"aaa",
	subtitle:'aaA',
	pincolor:Titanium.Map.ANNOTATION_RED,
	animate:true,
	leftButton: '../images/appcelerator_small.png',
	myid:1 // CUSTOM ATTRIBUTE THAT IS PASSED INTO EVENT OBJECTS
});
var point3 = Titanium.Map.createAnnotation({
	latitude:40.813121,
	longitude:-73.866047,
	title:"aaa",
	subtitle:'aaA',
	pincolor:Titanium.Map.ANNOTATION_RED,
	animate:true,
	leftButton: '../images/appcelerator_small.png',
	myid:1 // CUSTOM ATTRIBUTE THAT IS PASSED INTO EVENT OBJECTS
});
var point4 = Titanium.Map.createAnnotation({
	latitude:43.813121,
	longitude:-61.866047,
	title:"aaa",
	subtitle:'aaA',
	pincolor:Titanium.Map.ANNOTATION_RED,
	animate:true,
	leftButton: '../images/appcelerator_small.png',
	myid:1 // CUSTOM ATTRIBUTE THAT IS PASSED INTO EVENT OBJECTS
});
var mapview = Titanium.Map.createView({
	mapType: Titanium.Map.STANDARD_TYPE,
    regionFit:true,
    region:findZoomRegion(Points),
    annotations:[point1,point2,point3,point4]
});
win1.add(mapview);
win1.open();