238 lines
10 KiB
JavaScript
238 lines
10 KiB
JavaScript
goog.provide('ol.test.format.WKT');
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describe('ol.format.WKT', function() {
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var format = new ol.format.WKT();
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it('Point read / written correctly', function() {
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var wkt = 'POINT(30 10)';
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var geom = format.readGeometry(wkt);
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expect(geom.getCoordinates()).to.eql([30, 10]);
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expect(format.writeGeometry(geom)).to.eql(wkt);
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// test whitespace when reading
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wkt = 'POINT (30 10)';
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geom = format.readGeometry(wkt);
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expect(geom.getCoordinates()).to.eql([30, 10]);
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});
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it('MultiPoint read / written correctly', function() {
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// there are two forms to test
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var wkt = 'MULTIPOINT((10 40),(40 30),(20 20),(30 10))';
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var geom = format.readGeometry(wkt);
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var points = geom.getPoints();
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expect(points.length).to.eql(4);
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expect(points[0].getCoordinates()).to.eql([10, 40]);
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expect(points[1].getCoordinates()).to.eql([40, 30]);
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expect(points[2].getCoordinates()).to.eql([20, 20]);
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expect(points[3].getCoordinates()).to.eql([30, 10]);
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expect(format.writeGeometry(geom)).to.eql(wkt);
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// this has whitespace
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wkt = 'MULTIPOINT (10 40, 40 30, 20 20, 30 10)';
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geom = format.readGeometry(wkt);
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points = geom.getPoints();
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expect(points.length).to.eql(4);
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expect(points[0].getCoordinates()).to.eql([10, 40]);
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expect(points[1].getCoordinates()).to.eql([40, 30]);
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expect(points[2].getCoordinates()).to.eql([20, 20]);
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expect(points[3].getCoordinates()).to.eql([30, 10]);
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});
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it('LineString read / written correctly', function() {
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var wkt = 'LINESTRING(30 10,10 30,40 40)';
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var geom = format.readGeometry(wkt);
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expect(geom.getType()).to.eql(ol.geom.GeometryType.LINE_STRING);
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expect(geom.getCoordinates()).to.eql([[30, 10], [10, 30], [40, 40]]);
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expect(format.writeGeometry(geom)).to.eql(wkt);
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// test whitespace when reading
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wkt = 'LINESTRING (30 10, 10 30, 40 40)';
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geom = format.readGeometry(wkt);
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expect(geom.getType()).to.eql(ol.geom.GeometryType.LINE_STRING);
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expect(geom.getCoordinates()).to.eql([[30, 10], [10, 30], [40, 40]]);
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});
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it('MultiLineString read / written correctly', function() {
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var wkt = 'MULTILINESTRING((10 10,20 20,10 40),' +
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'(40 40,30 30,40 20,30 10))';
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var geom = format.readGeometry(wkt);
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expect(geom.getType()).to.eql(ol.geom.GeometryType.MULTI_LINE_STRING);
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var linestrings = geom.getLineStrings();
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expect(linestrings.length).to.eql(2);
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expect(linestrings[0].getType()).to.eql(ol.geom.GeometryType.LINE_STRING);
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expect(linestrings[0].getCoordinates()).to.eql(
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[[10, 10], [20, 20], [10, 40]]);
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expect(format.writeGeometry(geom)).to.eql(wkt);
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// test whitespace when reading
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wkt = 'MULTILINESTRING ( (10 10, 20 20, 10 40), ' +
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'(40 40, 30 30, 40 20, 30 10) )';
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geom = format.readGeometry(wkt);
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expect(geom.getType()).to.eql(ol.geom.GeometryType.MULTI_LINE_STRING);
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linestrings = geom.getLineStrings();
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expect(linestrings.length).to.eql(2);
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expect(linestrings[0].getType()).to.eql(
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ol.geom.GeometryType.LINE_STRING);
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expect(linestrings[0].getCoordinates()).to.eql(
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[[10, 10], [20, 20], [10, 40]]);
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});
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it('Polygon read / written correctly', function() {
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var wkt = 'POLYGON((30 10,10 20,20 40,40 40,30 10))';
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var geom = format.readGeometry(wkt);
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expect(geom.getType()).to.eql(ol.geom.GeometryType.POLYGON);
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var rings = geom.getLinearRings();
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expect(rings.length).to.eql(1);
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expect(rings[0].getType()).to.eql(ol.geom.GeometryType.LINEAR_RING);
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expect(rings[0].getCoordinates()).to.eql(
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[[30, 10], [10, 20], [20, 40], [40, 40], [30, 10]]);
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expect(format.writeGeometry(geom)).to.eql(wkt);
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// note that WKT doesn't care about winding order, we do
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wkt = 'POLYGON((35 10,10 20,15 40,45 45,35 10),(20 30,30 20,35 35,20 30))';
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geom = format.readGeometry(wkt);
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expect(geom.getType()).to.eql(ol.geom.GeometryType.POLYGON);
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rings = geom.getLinearRings();
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expect(rings.length).to.eql(2);
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expect(rings[0].getType()).to.eql(ol.geom.GeometryType.LINEAR_RING);
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expect(rings[1].getType()).to.eql(ol.geom.GeometryType.LINEAR_RING);
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expect(rings[0].getCoordinates()).to.eql(
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[[35, 10], [10, 20], [15, 40], [45, 45], [35, 10]]);
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expect(rings[1].getCoordinates()).to.eql(
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[[20, 30], [30, 20], [35, 35], [20, 30]]);
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expect(format.writeGeometry(geom)).to.eql(wkt);
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// test whitespace when reading
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wkt = 'POLYGON ( (30 10, 10 20, 20 40, 40 40, 30 10) )';
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geom = format.readGeometry(wkt);
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expect(geom.getType()).to.eql(ol.geom.GeometryType.POLYGON);
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rings = geom.getLinearRings();
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expect(rings.length).to.eql(1);
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expect(rings[0].getType()).to.eql(ol.geom.GeometryType.LINEAR_RING);
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expect(rings[0].getCoordinates()).to.eql(
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[[30, 10], [10, 20], [20, 40], [40, 40], [30, 10]]);
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});
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it('MultiPolygon read / written correctly', function() {
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// note that WKT doesn't care about winding order, we do
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var wkt = 'MULTIPOLYGON(((40 40,45 30,20 45,40 40)),' +
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'((20 35,45 20,30 5,10 10,10 30,20 35),(30 20,20 25,20 15,30 20)))';
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var geom = format.readGeometry(wkt);
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expect(geom.getType()).to.eql(ol.geom.GeometryType.MULTI_POLYGON);
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var polygons = geom.getPolygons();
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expect(polygons.length).to.eql(2);
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expect(polygons[0].getType()).to.eql(ol.geom.GeometryType.POLYGON);
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expect(polygons[1].getType()).to.eql(ol.geom.GeometryType.POLYGON);
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expect(polygons[0].getLinearRings().length).to.eql(1);
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expect(polygons[1].getLinearRings().length).to.eql(2);
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expect(polygons[0].getLinearRings()[0].getCoordinates()).to.eql(
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[[40, 40], [45, 30], [20, 45], [40, 40]]);
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expect(polygons[1].getLinearRings()[0].getCoordinates()).to.eql(
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[[20, 35], [45, 20], [30, 5], [10, 10], [10, 30], [20, 35]]);
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expect(polygons[1].getLinearRings()[1].getCoordinates()).to.eql(
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[[30, 20], [20, 25], [20, 15], [30, 20]]);
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expect(format.writeGeometry(geom)).to.eql(wkt);
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// test whitespace when reading
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wkt = 'MULTIPOLYGON( ( ( 40 40,45 30, 20 45 ,40 40 )) ,' +
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'( (20 35, 45 20,30 5,10 10,10 30,20 35), ' +
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'( 30 20, 20 25,20 15 ,30 20 ) ))';
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geom = format.readGeometry(wkt);
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expect(geom.getType()).to.eql(ol.geom.GeometryType.MULTI_POLYGON);
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polygons = geom.getPolygons();
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expect(polygons.length).to.eql(2);
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expect(polygons[0].getType()).to.eql(ol.geom.GeometryType.POLYGON);
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expect(polygons[1].getType()).to.eql(ol.geom.GeometryType.POLYGON);
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expect(polygons[0].getLinearRings().length).to.eql(1);
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expect(polygons[1].getLinearRings().length).to.eql(2);
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expect(polygons[0].getLinearRings()[0].getCoordinates()).to.eql(
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[[40, 40], [45, 30], [20, 45], [40, 40]]);
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expect(polygons[1].getLinearRings()[0].getCoordinates()).to.eql(
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[[20, 35], [45, 20], [30, 5], [10, 10], [10, 30], [20, 35]]);
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expect(polygons[1].getLinearRings()[1].getCoordinates()).to.eql(
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[[30, 20], [20, 25], [20, 15], [30, 20]]);
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});
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it('Empty geometries read / written correctly', function() {
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var wkts = ['POINT', 'LINESTRING', 'POLYGON',
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'MULTIPOINT', 'MULTILINESTRING', 'MULTIPOLYGON'];
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for (var i = 0, ii = wkts.length; i < ii; ++i) {
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var wkt = wkts[i] + ' EMPTY';
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var geom = format.readGeometry(wkt);
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expect(geom.getCoordinates()).to.eql([]);
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expect(format.writeGeometry(geom)).to.eql(wkt);
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}
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});
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it('Invalid geometries detected correctly', function() {
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expect(function() {
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format.readGeometry('POINT(1,2)');
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}).to.throwException();
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expect(function() {
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format.readGeometry('LINESTRING(1 2,3 4');
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}).to.throwException();
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expect(function() {
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format.readGeometry('POLYGON(1 2,3 4))');
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}).to.throwException();
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expect(function() {
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format.readGeometry('POLGON((1 2,3 4))');
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}).to.throwException();
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expect(function() {
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format.readGeometry('LINESTRING(1.2,3 4');
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}).to.throwException();
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expect(function() {
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format.readGeometry('MULTIPOINT((1 2),3 4))');
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}).to.throwException();
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expect(function() {
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format.readGeometry('MULTIPOLYGON((1 2,3 4))');
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}).to.throwException();
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expect(function() {
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format.readGeometry('GEOMETRYCOLLECTION(1 2,3 4)');
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}).to.throwException();
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});
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it('GeometryCollection read / written correctly', function() {
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var wkt = 'GEOMETRYCOLLECTION(POINT(4 6),LINESTRING(4 6,7 10))';
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var geom = format.readGeometry(wkt);
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var geoms = geom.getGeometries();
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expect(geoms.length).to.eql(2);
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expect(geom.getType()).to.eql(ol.geom.GeometryType.GEOMETRY_COLLECTION);
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expect(geoms[0].getType()).to.eql(ol.geom.GeometryType.POINT);
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expect(geoms[1].getType()).to.eql(ol.geom.GeometryType.LINE_STRING);
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expect(geoms[0].getCoordinates()).to.eql([4, 6]);
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expect(geoms[1].getCoordinates()).to.eql([[4, 6], [7, 10]]);
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expect(format.writeGeometry(geom)).to.eql(wkt);
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// test whitespace when reading
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wkt = 'GEOMETRYCOLLECTION ( POINT (4 6), LINESTRING (4 6, 7 10) )';
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geom = format.readGeometry(wkt);
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geoms = geom.getGeometries();
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expect(geoms.length).to.eql(2);
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expect(geom.getType()).to.eql(ol.geom.GeometryType.GEOMETRY_COLLECTION);
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expect(geoms[0].getType()).to.eql(ol.geom.GeometryType.POINT);
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expect(geoms[1].getType()).to.eql(ol.geom.GeometryType.LINE_STRING);
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expect(geoms[0].getCoordinates()).to.eql([4, 6]);
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expect(geoms[1].getCoordinates()).to.eql([[4, 6], [7, 10]]);
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});
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it('Empty GeometryCollection read / written correctly', function() {
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var wkt = 'GEOMETRYCOLLECTION EMPTY';
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var geom = format.readGeometry(wkt);
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expect(geom.getGeometries()).to.eql([]);
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expect(format.writeGeometry(geom)).to.eql(wkt);
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});
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it('GeometryCollection split / merged correctly', function() {
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format = new ol.format.WKT({splitCollection: true});
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var wkt = 'GEOMETRYCOLLECTION(POINT(4 6),LINESTRING(4 6,7 10))';
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var features = format.readFeatures(wkt);
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expect(features.length).to.eql(2);
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var geoms = [features[0].getGeometry(), features[1].getGeometry()];
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expect(geoms[0].getType()).to.eql(ol.geom.GeometryType.POINT);
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expect(geoms[1].getType()).to.eql(ol.geom.GeometryType.LINE_STRING);
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expect(geoms[0].getCoordinates()).to.eql([4, 6]);
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expect(geoms[1].getCoordinates()).to.eql([[4, 6], [7, 10]]);
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expect(format.writeFeatures(features)).to.eql(wkt);
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});
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});
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goog.require('ol.geom.GeometryType');
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goog.require('ol.format.WKT');
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