Beginning Google Maps API 3 by Gabriel Svennerberg (auth.), Matt Wade, Clay Andres, Steve

By Gabriel Svennerberg (auth.), Matt Wade, Clay Andres, Steve Anglin, Mark Beckner, Ewan Buckingham, Gary Cornell, Jonathan Gennick, Jonathan Hassell, Michelle Lowman, Matthew Moodie, Duncan Parkes, Jeffrey Pepper, Frank Pohlmann, Douglas Pundick, Ben Renow-

This publication is ready the subsequent iteration of the Google Maps API. it's going to give you the reader with the talents and data essential to comprise Google Maps model three on websites in either computing device and cellular browsers.

It additionally describes how you can care for universal difficulties that almost all map builders come upon at some point soon, like functionality and value concerns with having too many markers and attainable recommendations to that.

  • Introduction to the Google Maps API model three
  • Solutions to universal difficulties so much builders encounters (too many markers, universal JavaScript pitfalls)
  • Best practices utilizing HTML/CSS/JavaScript and Google Maps

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In v3 this is handled differently. For example, the icon shadow is handled as a separate property in the MarkerOptions object. It’s called shadow and also takes either a MarkerImage object or a URL to an image as its value. All the alternative icons you could define in v2, such as printImage, mozPrintImage, and transparent are dropped, so you only need to worry about providing one image for the icon and one for its shadow. In its simplest form, changing the marker icon requires that you only provide it with a URL for the icon and one for the shadow.

This risk increases as the project gets more complex and as the number of external JavaScript libraries being used increases. Therefore, it’s good practice to keep code in a namespace. maps. The Map Container Do you remember that you inserted a

with the attribute id="map" in the web page? Now it will come to good use since you want to insert the map inside it. To do this, you need to make a reference to it in your script and pass it to the map object. You’re going to use the native DOM method getElementById() for this (Table 3-2).

GetElementById(id:string) A reference to an HTML element or null This method searches the document for an element with the correct ID. You create a variable called mapDiv and by using the getElementById() method assign it a reference to

. getElementById('map'); MapOptions MapOptions resides in an object that is passed to the map. It contains information about how you want your map to look and behave. This object is in the form of an object literal. As you’ve already seen, an object literal is an object that is created on the fly, which means that at the same time you create it, you also provide it with its values.

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