102 lines
2.5 KiB
JavaScript
102 lines
2.5 KiB
JavaScript
goog.provide('ol.test.format.TopoJSON');
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var aruba = {
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type: 'Topology',
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transform: {
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scale: [0.036003600360036005, 0.017361589674592462],
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translate: [-180, -89.99892578124998]
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},
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objects: {
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aruba: {
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type: 'Polygon',
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properties: {
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prop0: 'value0'
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},
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arcs: [[0]],
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id: 533
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}
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},
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arcs: [
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[[3058, 5901], [0, -2], [-2, 1], [-1, 3], [-2, 3], [0, 3], [1, 1], [1, -3],
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[2, -5], [1, -1]]
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]
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};
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describe('ol.format.TopoJSON', function() {
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var format;
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before(function() {
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format = new ol.format.TopoJSON();
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});
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describe('constructor', function() {
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it('creates a new format', function() {
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expect(format).to.be.a(ol.format.Format);
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expect(format).to.be.a(ol.format.TopoJSON);
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});
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});
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describe('#readFeaturesFromTopology_()', function() {
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it('creates an array of features from a topology', function() {
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var features = format.readFeaturesFromObject(aruba);
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expect(features).to.have.length(1);
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var feature = features[0];
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expect(feature).to.be.a(ol.Feature);
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var geometry = feature.getGeometry();
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expect(geometry).to.be.a(ol.geom.Polygon);
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// Parses identifier
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expect(feature.getId()).to.be(533);
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// Parses properties
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expect(feature.get('prop0')).to.be('value0');
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expect(geometry.getExtent()).to.eql([
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-70.08100810081008, 12.417091709170947,
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-69.9009900990099, 12.608069195591469
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]);
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});
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});
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describe('#readFeatures()', function() {
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it('parses world-110m.json', function(done) {
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afterLoadText('spec/ol/format/topojson/world-110m.json', function(text) {
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var features = format.readFeatures(text);
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expect(features.length).to.be(178);
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var first = features[0];
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expect(first).to.be.a(ol.Feature);
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var firstGeom = first.getGeometry();
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expect(firstGeom).to.be.a(ol.geom.MultiPolygon);
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expect(firstGeom.getExtent()).to.eql(
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[-180, -85.60903777459777, 180, 83.64513000000002]);
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var last = features[177];
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expect(last).to.be.a(ol.Feature);
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var lastGeom = last.getGeometry();
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expect(lastGeom).to.be.a(ol.geom.Polygon);
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expect(lastGeom.getExtent()).to.eql([
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25.26325263252633, -22.271802279310577,
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32.848528485284874, -15.50833810039586
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]);
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done();
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});
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});
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});
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});
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goog.require('ol.Feature');
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goog.require('ol.geom.MultiPolygon');
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goog.require('ol.geom.Polygon');
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goog.require('ol.format.Format');
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goog.require('ol.format.TopoJSON');
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