change map size on click

开发者_JAVA技巧How can I set it up so when a user clicks the submit button, the map will resize itself to fit directions as it is on yelp maps when finding directions?

Thanks

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Well, without much information in your question, just add a style modification in your map direction handler. In it's simplest form: But without knowing more about your particular setup, I can't do much more.

HTML:

<FORM onSubmit="findDirections()">

JavaScript:

function findDirections() {
    // Change map width
    document.getElementsById("directions_map").style.width = "600px";

    // Do google maps lookup, etc
}

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Do you mean how to set center and zoom of map to have direction fit in such a view? If so, you can obtain points of this direction, add them to create LatLngBounds (using the extend method) and use Map.fitBounds with prepared bounds as parameter.