Maps Javascript API V3 Controls - Google Maps JavaScript API V3 - Google Code. Controls Overview The maps displayed through the Maps JavaScript API contain UI elements to allow user interaction with the map. These elements are known as controls and you can include variations of these controls in your application. Alternatively, you can do nothing and let the Maps JavaScript API handle all control behavior. The following map shows the default set of controls displayed by the Maps JavaScript API: Below is a list of the full set of controls you can use in your maps: The Zoom control displays "+" and "-" buttons for changing the zoom level of the map. You don't access or modify these map controls directly. Not all of these controls are enabled by default. The Default UI By default, all the controls disappear if the map is too small (200x200px). The behavior and appearance of the controls is the same across mobile and desktop devices, except for the fullscreen control (see the behavior described in the list of controls).
Disabling the Default UI TypeScript JavaScript. Maps Javascript API V3 Reference - Google Maps JavaScript API V3 - Google Code. Release Version Last updated Monday, February 17, 2014 This reference documents version 3.15 (the release version) of the Maps Javascript API released November 15, 2013. This release version of the API is a feature-stable version of the API whose interfaces are guaranteed to remain as documented within these pages until this version is retired. To consult the latest (experimental) version of the Maps Javascript API, see the Experimental Development Reference. Reference Table of Contents Map Controls Overlays Services Map Types Layers Street View Events Base Geometry Library AdSense Library Panoramio Library Places Library Drawing Library Weather Library Visualization Library google.maps.Map class This class extends MVCObject.
Constructor Methods Properties Events google.maps.MapOptions object specification google.maps.MapTypeId class Identifiers for common MapTypes. Constant google.maps.MapTypeControlOptions object specification Options for the rendering of the map type control. google.maps.MapTypeControlStyle class. Maps Javascript API V3 Events - Google Maps JavaScript API V3 - Google Code. Overview JavaScript within the browser is event driven, meaning that JavaScript responds to interactions by generating events, and expects a program to listen to interesting events.
There are two types of events: User events (such as "click" mouse events) are propagated from the DOM to the Google Maps API. These events are separate and distinct from standard DOM events. Each Maps API object exports a number of named events. For a complete list of events, consult the Maps API Reference. UI Events Some objects within the Maps API are designed to respond to user events such as mouse or keyboard events. 'click' 'dblclick' 'mouseup' 'mousedown' 'mouseover' 'mouseout' For the full list, see the Marker class. MVC State Changes MVC objects typically contain state. User events and MVC state changes may look similar, but you generally wish to treat them differently in your code. Handling Events To register for event notifications, use the addListener() event handler. Example: Map and Marker Events. Javascript Closures. Introduction Closure A "closure" is an expression (typically a function) that can have free variables together with an environment that binds those variables (that "closes" the expression).
Closures are one of the most powerful features of ECMAScript (javascript) but they cannot be property exploited without understanding them. They are, however, relatively easy to create, even accidentally, and their creation has potentially harmful consequences, particularly in some relatively common web browser environments. To avoid accidentally encountering the drawbacks and to take advantage of the benefits they offer it is necessary to understand their mechanism. This depends heavily on the role of scope chains in identifier resolution and so on the resolution of property names on objects.
The simple explanation of a Closure is that ECMAScript allows inner functions; function definitions and function expressions that are inside the function bodes of other functions. Assignment of Values Finally:- An. Maps Javascript API V3 Tutorial - Google Maps JavaScript API V3 - Google Code. Audience This documentation is designed for people familiar with JavaScript programming and object-oriented programming concepts. You should also be familiar with Google Maps from a user's point of view. There are many JavaScript tutorials available on the Web.
This conceptual documentation is designed to let you quickly start exploring and developing applications with the Google Maps API. We also publish the Google Maps API Reference. Obtaining an API Key All Maps API applications* should load the Maps API using an API key. . * Google Maps API for Business developers must not include a key in their requests.
To create your API key: Visit the APIs Console at and log in with your Google Account. By default, a key can be used on any site. Hello, World The easiest way to start learning about the Google Maps API is to see a simple example. View example (map-simple.html) Even in this simple example, there are a few things to note: Loading the Google Maps API.