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Move vector code out of the way

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Tom Payne
2013-11-06 16:40:26 +01:00
parent 81349d382b
commit 4e65fefc00
271 changed files with 881 additions and 0 deletions
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183
test/spec/ol/geom/polygon.test.js
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goog.provide('ol.test.geom.Polygon');
describe('ol.geom.Polygon', function() {
var outer = [[0, 0], [10, 0], [10, 10], [0, 10], [0, 0]],
inner1 = [[1, 1], [2, 1], [2, 2], [1, 2], [1, 1]],
inner2 = [[8, 8], [9, 8], [9, 9], [8, 9], [8, 8]];
describe('constructor', function() {
it('creates a polygon from an array', function() {
var poly = new ol.geom.Polygon([outer, inner1, inner2]);
expect(poly).to.be.a(ol.geom.Polygon);
expect(poly).to.be.a(ol.geom.Geometry);
});
});
describe('#getRings()', function() {
it('returns an array of LinearRing', function() {
var poly = new ol.geom.Polygon([outer, inner1, inner2]);
var rings = poly.getRings();
expect(rings.length).to.be(3);
expect(rings[0]).to.be.a(ol.geom.LinearRing);
expect(rings[1]).to.be.a(ol.geom.LinearRing);
expect(rings[2]).to.be.a(ol.geom.LinearRing);
});
var isClockwise = ol.geom.LinearRing.isClockwise;
it('forces exterior ring to be clockwise', function() {
var outer = [[0, 0], [10, 0], [10, 10], [0, 10], [0, 0]];
expect(isClockwise(outer)).to.be(false);
var poly = new ol.geom.Polygon([outer]);
var ring = poly.getRings()[0];
expect(isClockwise(ring.getCoordinates())).to.be(true);
});
it('forces interior ring to be counter-clockwise', function() {
var outer = [[0, 0], [10, 0], [10, 10], [0, 10], [0, 0]];
var inner = [[2, 2], [2, 8], [8, 8], [8, 2], [2, 2]];
expect(isClockwise(inner)).to.be(true);
var poly = new ol.geom.Polygon([outer, inner]);
var ring = poly.getRings()[1];
expect(isClockwise(ring.getCoordinates())).to.be(false);
});
});
describe('#getBounds()', function() {
it('returns the bounding extent', function() {
var poly = new ol.geom.Polygon([outer, inner1, inner2]);
var bounds = poly.getBounds();
expect(bounds[0]).to.be(0);
expect(bounds[2]).to.be(10);
expect(bounds[1]).to.be(0);
expect(bounds[3]).to.be(10);
});
});
describe('#getCoordinates()', function() {
it('returns an array', function() {
var poly = new ol.geom.Polygon([outer, inner1, inner2]);
expect(poly.getCoordinates()).to.eql([outer, inner1, inner2]);
});
});
describe('#transform()', function() {
var forward = ol.proj.getTransform('EPSG:4326', 'EPSG:3857');
var inverse = ol.proj.getTransform('EPSG:3857', 'EPSG:4326');
var gg, sm;
beforeEach(function() {
gg = [
[[0, 0], [0, 10], [10, 10], [10, 0], [0, 0]],
[[1, 1], [2, 1], [2, 2], [1, 2], [1, 1]],
[[8, 8], [9, 8], [9, 9], [8, 9], [8, 8]]
];
sm = [[
[0, 0], [0, 1118890], [1113195, 1118890], [1113195, 0], [0, 0]
], [
[111319, 111325], [222639, 111325], [222639, 222684],
[111319, 222684], [111319, 111325]
], [
[890556, 893464], [1001875, 893464], [1001875, 1006021],
[890556, 1006021], [890556, 893464]
]];
});
it('forward transforms a polygon in place', function() {
var poly = new ol.geom.Polygon(gg);
poly.transform(forward);
var coordinates = poly.getCoordinates();
var ring;
for (var i = 0, ii = coordinates.length; i < ii; ++i) {
var ring = coordinates[i];
for (var j = 0, jj = ring.length; j < jj; ++j) {
expect(ring[j][0]).to.roughlyEqual(sm[i][j][0], 1);
expect(ring[j][1]).to.roughlyEqual(sm[i][j][1], 1);
}
}
});
it('inverse transforms a polygon in place', function() {
var poly = new ol.geom.Polygon(sm);
poly.transform(inverse);
var coordinates = poly.getCoordinates();
var ring;
for (var i = 0, ii = coordinates.length; i < ii; ++i) {
var ring = coordinates[i];
for (var j = 0, jj = ring.length; j < jj; ++j) {
expect(ring[j][0]).to.roughlyEqual(gg[i][j][0], 0.001);
expect(ring[j][1]).to.roughlyEqual(gg[i][j][1], 0.001);
}
}
});
});
describe('change event', function() {
var outer, inner;
beforeEach(function() {
outer = [[0, 0], [10, 0], [10, 10], [0, 10], [0, 0]];
inner = [[2, 2], [2, 8], [8, 8], [8, 2], [2, 2]];
});
it('is fired when outer ring is modified', function(done) {
var poly = new ol.geom.Polygon([outer, inner]);
var rings = poly.getRings();
var bounds = poly.getBounds();
goog.events.listen(poly, 'change', function(evt) {
expect(evt.target).to.be(poly);
expect(evt.oldExtent).to.eql(bounds);
expect(evt.target.getBounds()).to.eql([0, 0, 11, 10]);
done();
});
var outerCoords = rings[0].getCoordinates();
outerCoords[1][0] = 11;
rings[0].setCoordinates(outerCoords);
});
it('is fired when inner ring is modified', function(done) {
var poly = new ol.geom.Polygon([outer, inner]);
var rings = poly.getRings();
var bounds = poly.getBounds();
goog.events.listen(poly, 'change', function(evt) {
expect(evt.target).to.be(poly);
expect(evt.oldExtent).to.eql(bounds);
expect(evt.target.getBounds()).to.eql([0, 0, 10, 10]);
done();
});
var innerCoords = rings[1].getCoordinates();
innerCoords[1][0] = 3;
rings[1].setCoordinates(innerCoords);
});
});
});
goog.require('goog.events');
goog.require('ol.geom.Geometry');
goog.require('ol.geom.LinearRing');
goog.require('ol.geom.Polygon');
goog.require('ol.proj');