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Add ol.extent.touches

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This commit is contained in:
Éric Lemoine
2013-09-16 15:51:12 +02:00
parent b192335e56
commit 70c66d4cf1
2 changed files with 31 additions and 1 deletions
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13
src/ol/extent.js
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@@ -337,6 +337,19 @@ ol.extent.toString = function(extent) {
};
/**
* @param {ol.Extent} extent1 Extent 1.
* @param {ol.Extent} extent2 Extent 2.
* @return {boolean} Touches.
*/
ol.extent.touches = function(extent1, extent2) {
var intersects = ol.extent.intersects(extent1, extent2);
return intersects &&
(extent1[0] == extent2[2] || extent1[2] == extent2[0] ||
extent1[1] == extent2[3] || extent1[3] == extent2[1]);
};
/**
* @param {ol.Extent} extent Extent.
* @param {ol.TransformFunction} transformFn Transform function.

19
test/spec/ol/extent.test.js
View File

@@ -122,7 +122,7 @@ describe('ol.extent', function() {
});
});
describe('intersect', function() {
describe('intersects', function() {
it('returns the expected value', function() {
var intersects = ol.extent.intersects;
@@ -157,6 +157,23 @@ describe('ol.extent', function() {
});
});
describe('touches', function() {
it('returns the expected value', function() {
var touches = ol.extent.touches;
var extent = [50, 50, 100, 100];
expect(touches(extent, [20, 20, 80, 80])).to.be(false);
expect(touches(extent, [20, 20, 50, 80])).to.be(true);
expect(touches(extent, [20, 20, 50, 40])).to.be(false);
expect(touches(extent, [100, 20, 140, 80])).to.be(true);
expect(touches(extent, [100, 20, 140, 40])).to.be(false);
expect(touches(extent, [20, 20, 80, 50])).to.be(true);
expect(touches(extent, [20, 20, 40, 50])).to.be(false);
expect(touches(extent, [20, 100, 80, 140])).to.be(true);
expect(touches(extent, [20, 100, 40, 140])).to.be(false);
});
});
describe('normalize', function() {
it('returns the expected coordinate', function() {
var extent = [0, 1, 2, 3];