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adding determineQuadrant() function to OpenLayers.Bounds. Tests included.

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@334 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
euzuro
2006-05-24 23:43:09 +00:00
parent 3ece5e35fd
commit b55debdd48
2 changed files with 33 additions and 0 deletions
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18
lib/OpenLayers/Util.js
View File

@@ -413,6 +413,24 @@ OpenLayers.Bounds.prototype = {
: (inTop && inLeft && inBottom && inRight);
},
/**
* @param {OpenLayers.LonLat} lonlat
*
* @returns The quadrant ("br" "tr" "tl" "bl") of the bounds in which
* the coordinate lies.
* @type String
*/
determineQuadrant: function(lonlat) {
var quadrant = "";
var center = this.getCenterLonLat();
quadrant += (lonlat.lat < center.lat) ? "b" : "t";
quadrant += (lonlat.lon < center.lon) ? "l" : "r";
return quadrant;
},
/** @final @type String */
CLASS_NAME: "OpenLayers.Bounds"
};

15
tests/test_Bounds.html
View File

@@ -139,6 +139,21 @@
t.eq( containerBounds.containsBounds(bounds, true, false) , true, "(" + containerBounds.toBBOX() + ") correctly contains (" + bounds.toBBOX() + ") when partial is true, inclusive is false" );
}
function test_09_Bounds_determineQuadrant(t) {
t.plan( 4 );
var bounds = new OpenLayers.Bounds(0,0,100,100);
var tl = new OpenLayers.LonLat(25, 75);
var tr = new OpenLayers.LonLat(75, 75);
var bl = new OpenLayers.LonLat(25, 25);
var br = new OpenLayers.LonLat(75, 25);
t.eq( bounds.determineQuadrant(tl), "tl", "bounds.determineQuadrant correctly identifies a coordinate in the top left quadrant");
t.eq( bounds.determineQuadrant(tr), "tr", "bounds.determineQuadrant correctly identifies a coordinate in the top right quadrant");
t.eq( bounds.determineQuadrant(bl), "bl", "bounds.determineQuadrant correctly identifies a coordinate in the bottom left quadrant");
t.eq( bounds.determineQuadrant(br), "br", "bounds.determineQuadrant correctly identifies a coordinate in the bottom right quadrant");
}
// -->
</script>