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Test new polygon intersection utils

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Tom MacWright
2013-01-16 12:35:58 -05:00
parent 9540911794
commit 110d60d739
1 changed files with 31 additions and 0 deletions
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test/spec/util.js
+31
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@@ -61,5 +61,36 @@ describe('Util', function() {
expect(iD.util.geo.dist(a, b)).to.eql(5);
});
});
describe('#pointInPolygon', function() {
it('says a point in a polygon is on a polygon', function() {
var poly = [[0, 0], [0, 1], [1, 1], [1, 0], [0, 0]];
var point = [0.5, 0.5];
expect(iD.util.geo.pointInPolygon(point, poly)).to.be.true;
});
it('says a point outside of a polygon is outside', function() {
var poly = [
[0, 0],
[0, 1],
[1, 1],
[1, 0],
[0, 0]];
var point = [0.5, 1.5];
expect(iD.util.geo.pointInPolygon(point, poly)).to.be.false;
});
});
describe('#polygonContainsPolygon', function() {
it('says a polygon in a polygon is in', function() {
var outer = [[0, 0], [0, 3], [3, 3], [3, 0], [0, 0]];
var inner = [[1, 1], [1, 2], [2, 2], [2, 1], [1, 1]];
expect(iD.util.geo.polygonContainsPolygon(outer, inner)).to.be.true;
});
it('says a polygon outside of a polygon is out', function() {
var outer = [[0, 0], [0, 3], [3, 3], [3, 0], [0, 0]];
var inner = [[1, 1], [1, 9], [2, 2], [2, 1], [1, 1]];
expect(iD.util.geo.polygonContainsPolygon(outer, inner)).to.be.false;
});
});
});
});