105 lines
3.1 KiB
JavaScript
105 lines
3.1 KiB
JavaScript
goog.provide('ol.test.geom.LineString');
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describe('ol.geom.LineString', function() {
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describe('constructor', function() {
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it('creates a linestring from an array', function() {
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var line = new ol.geom.LineString([[10, 20], [30, 40]]);
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expect(line).to.be.a(ol.geom.LineString);
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expect(line).to.be.a(ol.geom.Geometry);
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});
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it('throws when given mismatched dimension', function() {
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expect(function() {
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var line = new ol.geom.LineString([[10, 20], [30, 40, 50]]);
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line = line; // suppress gjslint warning about unused variable
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}).to.throwException();
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});
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it('accepts shared vertices', function() {
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var vertices = new ol.geom.SharedVertices();
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var l1 = new ol.geom.LineString([[10, 20], [30, 40]], vertices);
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var l2 = new ol.geom.LineString([[50, 60], [70, 80]], vertices);
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expect(l1.getCoordinates()).to.eql([[10, 20], [30, 40]]);
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expect(l2.getCoordinates()).to.eql([[50, 60], [70, 80]]);
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});
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});
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describe('#dimension', function() {
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it('can be 2', function() {
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var line = new ol.geom.LineString([[10, 20], [30, 40]]);
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expect(line.dimension).to.be(2);
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});
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it('can be 3', function() {
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var line = new ol.geom.LineString([[10, 20, 30], [40, 50, 60]]);
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expect(line.dimension).to.be(3);
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});
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});
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describe('#getBounds()', function() {
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it('returns the bounding extent', function() {
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var line = new ol.geom.LineString([[10, 20], [20, 30], [30, 40]]);
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var bounds = line.getBounds();
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expect(bounds[0]).to.be(10);
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expect(bounds[1]).to.be(30);
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expect(bounds[2]).to.be(20);
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expect(bounds[3]).to.be(40);
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});
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});
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describe('#getCoordinates', function() {
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it('returns an array', function() {
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var line = new ol.geom.LineString([[10, 20], [30, 40]]);
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expect(line.getCoordinates()).to.eql([[10, 20], [30, 40]]);
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});
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});
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describe('#getSharedId()', function() {
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it('returns identifiers', function() {
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var vertices = new ol.geom.SharedVertices();
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var l1 = new ol.geom.LineString([[10, 20], [30, 40]], vertices);
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var l2 = new ol.geom.LineString(
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[[50, 60], [70, 80], [90, 100]], vertices);
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var id1 = l1.getSharedId();
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var id2 = l2.getSharedId();
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expect(vertices.coordinates).to.eql(
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[10, 20, 30, 40, 50, 60, 70, 80, 90, 100]);
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expect(vertices.getStart(id1)).to.be(0);
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expect(vertices.getCount(id1)).to.be(2);
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expect(vertices.get(id1, 0, 0)).to.be(10);
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expect(vertices.get(id1, 0, 1)).to.be(20);
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expect(vertices.get(id1, 1, 0)).to.be(30);
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expect(vertices.get(id1, 1, 1)).to.be(40);
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expect(vertices.getStart(id2)).to.be(4);
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expect(vertices.getCount(id2)).to.be(3);
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expect(vertices.get(id2, 0, 0)).to.be(50);
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expect(vertices.get(id2, 0, 1)).to.be(60);
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expect(vertices.get(id2, 1, 0)).to.be(70);
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expect(vertices.get(id2, 1, 1)).to.be(80);
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expect(vertices.get(id2, 2, 0)).to.be(90);
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expect(vertices.get(id2, 2, 1)).to.be(100);
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});
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});
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});
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goog.require('ol.geom.Geometry');
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goog.require('ol.geom.LineString');
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goog.require('ol.geom.SharedVertices');
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