Yes it is possible, I was as stuck as you probably were back in the v2
days and tried a million and a have different ways of figuring this
out when I come across a solution, I wish I remembered where from so I
could attribute it to them. However I did port it to v3, it involves
extending the Polygon class to include a function called Contains,
which takes in the latlng object and returns back true or false.
The function is as follows:
google.maps.Polygon.prototype.Contains = function(point) {
var j = 0;
var func_oddNodes = false;
var x = point.lng();
var y = point.lat();
var poly = this.getPath();
for (var i=0; i < poly.getLength(); i++) {
j++;
if( j == poly.getLength() ) {
j = 0;
} // end if
if ( ((poly.getAt(i).lat() < y) && (poly.getAt(j).lat() >= y))
|| ((poly.getAt(j).lat() < y) && (poly.getAt(i).lat() >= y)) ) {
if ( poly.getAt(i).lng() + (y - poly.getAt(i).lat())
/ (poly.getAt(j).lat()-poly.getAt(i).lat())
* (poly.getAt(j).lng() - poly.getAt(i).lng())<x ) {
func_oddNodes = !func_oddNodes
} // end if
} // end if
} // end for
return func_oddNodes;
} // end function
And to make the call to it:
mypolygon.Contains(mypoint);
I have it on a site that is up for now, (I'm working to replace it
soon) its @ http://www.cadistrict38.org/new/2011/m.php, just click
submit on that first pane and then enter in any name and try location
"Lakewood, CA" and it should spit back "within Lakewood"
Hope this helps!
On Nov 18, 4:43 pm, Zachary DeBruine <[email protected]>
wrote:
> Given a latitude-longitude point, is there an easy code that I can use to
> determine whether or not that point is within the bounds of the
> user-defined geometrical shape?
>
> Thanks!
> -Zach
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