79e4ee2717
This new implementation is based on http://github.com/imbcmdth/RTree/, with only a few modifications to add the optional type and provide the API of the previous implementation. There is still room for optimization, but this is such an improvement over the previous RTree already that it's worth bringing it in now.
60 lines
1.9 KiB
JavaScript
60 lines
1.9 KiB
JavaScript
goog.provide('ol.test.structs.RTree');
|
|
|
|
|
|
describe('ol.structs.RTree', function() {
|
|
|
|
describe('put and find', function() {
|
|
var rTree = new ol.structs.RTree();
|
|
rTree.put([0, 1, 0, 1], 1);
|
|
rTree.put([1, 4, 1, 4], 2);
|
|
rTree.put([2, 3, 2, 3], 3);
|
|
rTree.put([-5, -4, -5, -4], 4);
|
|
rTree.put([-4, -1, -4, -1], 5);
|
|
rTree.put([-3, -2, -3, -2], 6);
|
|
|
|
it('stores items', function() {
|
|
expect(goog.object.getCount(rTree.find([-100, 100, -100, 100]))).to.be(6);
|
|
});
|
|
|
|
it('filters by rectangle', function() {
|
|
var result;
|
|
result = goog.object.getValues(rTree.find([2, 3, 2, 3]));
|
|
expect(result).to.contain(2);
|
|
expect(result).to.contain(3);
|
|
expect(result.length).to.be(2);
|
|
result = goog.object.getValues(rTree.find([-1, 2, -1, 2]));
|
|
expect(result).to.contain(1);
|
|
expect(result).to.contain(2);
|
|
expect(result).to.contain(3);
|
|
expect(result).to.contain(5);
|
|
expect(result.length).to.be(4);
|
|
expect(goog.object.getCount(rTree.find([5, 6, 5, 6]))).to.be(0);
|
|
});
|
|
|
|
it('can store thousands of items and find fast', function() {
|
|
for (var i = 7; i <= 10000; ++i) {
|
|
rTree.put([
|
|
Math.random() * -10, Math.random() * 10,
|
|
Math.random() * -10, Math.random() * 10
|
|
], i);
|
|
}
|
|
expect(goog.object.getCount(rTree.find([-10, 10, -10, 10]))).to.be(10000);
|
|
var result = rTree.find([0, 0, 0, 0]);
|
|
expect(goog.object.getCount(result)).to.be(9995);
|
|
var values = goog.object.getValues(result);
|
|
expect(values).to.contain(1);
|
|
expect(values).not.to.contain(2);
|
|
expect(values).not.to.contain(3);
|
|
expect(values).not.to.contain(4);
|
|
expect(values).not.to.contain(5);
|
|
expect(values).not.to.contain(6);
|
|
expect(values).to.contain(7);
|
|
});
|
|
|
|
});
|
|
|
|
});
|
|
|
|
goog.require('goog.object');
|
|
goog.require('ol.structs.RTree');
|