![tomtom 8 map tomtom 8 map](https://www.tomtommapserve.com/assets/img/gps-nav.png)
OpenWeatherMap’s Current weather data service allows developers to make a simple web request to obtain textual descriptions of current weather conditions for a specific location. If this occurs, the OpenWeatherMap account is temporarily blocked from further requests and an error is displayed. With TomTom maps, if the scroll wheel is used to rapidly change the zoom level multiple times, this can result in this limit being exceeded.
#Tomtom 8 map free#
With free content, the application is limited to 60 web requests per minute. In our sample application, we will rely on free content. For details on using the OpenWeatherMap API and app ID, see their "How to start in 3 simple steps" tutorial. To use this service, first obtain an application ID by signing up for an account at the following location. The company provides both free content and, for a fee, premium content. OpenWeatherMap provides a variety of weather information to application developers via an easy-to-use API. We retain the pop-up in a variable in case we want to later remove it from the map. Finally, we add the pop-up that we’ve created to the map. Additionally, we provide an HTML fragment (typically a DIV element) that contains the content for the pop-up. We also indicate the latitude and longitude where the pop-up should be displayed. We specify that there is no maximum width so that our text won’t be unnecessarily wrapped. Next, we create a map by providing our API key and associating that map with the HTML DIV element used to display it. Tt.setProductInfo(applicationName, applicationVersion) This information helps TomTom to collect usage statistics. In our JavaScript, the first step when using the SDK is to identify the application and its version, using the following code. To include this local file in the application, add the following line in the same location: We also implement a simple SDK for accessing the OpenWeatherMap API. This is accomplished by adding the following lines within the HTML HEAD element: To use this service, a developer must first do the following:įor a web application, we can include the necessary SDK files through a link reference to the CDN distribution of the SDK. TomTom makes it easy to use mapping and navigation information by providing an extensive JavaScript SDK for web developers. The following picture illustrates how tiles evolve as the zoom level increases: See the article Understanding Map Tile Grids and Zoom Levels for a deeper discussion.
![tomtom 8 map tomtom 8 map](https://www.ubuy.hk/productimg/?image=aHR0cHM6Ly9tLm1lZGlhLWFtYXpvbi5jb20vaW1hZ2VzL0kvNTE5TXVjOElhMkwuX0FDX1NMMTAwMF8uanBn.jpg)
In this system, to request a specific tile, you need three parameters: zoom level (z), x-coordinate (x), and y-coordinate (y). In a tiling system, the map is divided into equal-sized tiles. It is also common practice for vendors, including TomTom and OpenWeatherMap, to implement a tiling and zooming mechanism. This is a coordinate reference system (CRS) shared by many vendors including TomTom and OpenWeatherMap. In web applications, the most common visual projection is called Web Mercator (or EPSG 3857). A number of standards and practices simplify this integration. One challenge vendors of geographical information face is integrating visual information from other vendors into their own service. Change the text “YOUR_API_KEY” to your actual TomTom API key from your development account, and the text “YOUR_APP_ID” to the actual OpenWeatherMap application ID.
#Tomtom 8 map code#
For the code to work properly, you must edit the weather.js file described later. This article assumes experience with basic CSS, HTML, and JavaScript. The complete source for the application can be downloaded here. We’ll accomplish this by describing a simple JavaScript application that demonstrates all of these concepts.
![tomtom 8 map tomtom 8 map](https://digitalmetrix554.weebly.com/uploads/1/2/4/8/124814425/528588608.png)
#Tomtom 8 map drivers#
Combining this with current weather information from the OpenWeatherMap API can help us build an interesting project that is valuable to drivers on the road as we head into fall and winter, too. TomTom provides excellent, up-to-date map and navigation information. Drivers who are aware of current weather conditions along their route can plan more carefully and drive more safely.