[OpenLayers-Users] containsPoint() Help por favor

[Marc Jansen]

Hi Jesse,

containsPoint is a method of (polygon-)geometries, not of features that 
have this geometry. Something like this should work

// you can test this in Firebug when
// you're on the page
// http://openlayers.org/dev/examples/editingtoolbar.html
// the point-geometry to check
// in my case the feature 1 was the point I digitized
var p = map.layers[1].features[1].geometry;
for(var i = 0; i < map.layers[1].features.length; i++) {
    // check if method containsPoint  exists, and if so, check f point 
is in the geometry
    if(map.layers[1].features[i].geometry.containsPoint && 
map.layers[1].features[i].geometry.containsPoint(p)) {
         alert('yes, point contained');
    } else {
        alert('no, point not contained or containsPoint-method not 
defined');
    }
}

Regards,
Marc


Jesse Bushkar schrieb:
> I need some help with containsPoint().  I have a variable (myLoc) that 
> represents a given point on the map on one layer.  Tthe features I'm 
> trying to monitor are polygons, so I think I could just use the 
> containsPoint function mixed with a for loop for each feature.  Does 
> that make sense?  Also, would it matter that my starting point and the 
> other polygons are on different layers?
>
> Something like:
>
>
> var isHere;
>
> for (var i = 0; i < layer.features; i++) {
>    isHere = layer.feature[i].
> containsPoint(myLoc);
>    if (isHere = TRUE) {
>           alert('true');
>    }
> }
>
> am I way off?
>
>
>
>
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