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Write support for Esri JSON

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This commit is contained in:
Bart van den Eijnden
2015-04-15 17:05:19 +02:00
parent 93c524baa0
commit db8c6ef1b4
4 changed files with 612 additions and 5 deletions
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183
test/spec/ol/format/esrijsonformat.test.js
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@@ -495,6 +495,189 @@ describe('ol.format.EsriJSON', function() {
});
describe('#writeGeometry', function() {
it('encodes point', function() {
var point = new ol.geom.Point([10, 20]);
var esrijson = format.writeGeometry(point);
expect(point.getCoordinates()).to.eql(
format.readGeometry(esrijson).getCoordinates());
});
it('encodes XYZ point', function() {
var point = new ol.geom.Point([10, 20, 0], ol.geom.GeometryLayout.XYZ);
var esrijson = format.writeGeometry(point);
expect(point.getCoordinates()).to.eql(
format.readGeometry(esrijson).getCoordinates());
});
it('encodes linestring', function() {
var linestring = new ol.geom.LineString([[10, 20], [30, 40]]);
var esrijson = format.writeGeometry(linestring);
expect(linestring.getCoordinates()).to.eql(
format.readGeometry(esrijson).getCoordinates());
});
it('encodes XYZ linestring', function() {
var linestring = new ol.geom.LineString([[10, 20, 1534], [30, 40, 1420]],
ol.geom.GeometryLayout.XYZ);
var esrijson = format.writeGeometry(linestring);
expect(linestring.getCoordinates()).to.eql(
format.readGeometry(esrijson).getCoordinates());
});
it('encodes 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]];
var polygon = new ol.geom.Polygon([outer, inner1, inner2]);
var esrijson = format.writeGeometry(polygon);
expect(polygon.getCoordinates(false)).to.eql(
format.readGeometry(esrijson).getCoordinates());
});
it('encodes XYZ polygon', function() {
var outer = [[0, 0, 5], [0, 10, 5], [10, 10, 5], [10, 0, 5], [0, 0, 5]],
inner1 = [[1, 1, 3], [2, 1, 3], [2, 2, 3], [1, 2, 3], [1, 1, 3]],
inner2 = [[8, 8, 2], [9, 8, 2], [9, 9, 2], [8, 9, 2], [8, 8, 2]];
var polygon = new ol.geom.Polygon([outer, inner1, inner2],
ol.geom.GeometryLayout.XYZ);
var esrijson = format.writeGeometry(polygon);
expect(polygon.getCoordinates(false)).to.eql(
format.readGeometry(esrijson).getCoordinates());
});
it('encodes multipoint', function() {
var multipoint = new ol.geom.MultiPoint([[102.0, 0.0] , [103.0, 1.0]]);
var esrijson = format.writeGeometry(multipoint);
expect(multipoint.getCoordinates()).to.eql(
format.readGeometry(esrijson).getCoordinates());
});
it('encodes XYZ multipoint', function() {
var multipoint = new ol.geom.MultiPoint([[102.0, 0.0, 3],
[103.0, 1.0, 4]], ol.geom.GeometryLayout.XYZ);
var esrijson = format.writeGeometry(multipoint);
expect(multipoint.getCoordinates()).to.eql(
format.readGeometry(esrijson).getCoordinates());
});
it('encodes multilinestring', function() {
var multilinestring = new ol.geom.MultiLineString([
[[102.0, 0.0], [103.0, 1.0], [104.0, 0.0], [105.0, 1.0]],
[[105.0, 3.0], [106.0, 4.0], [107.0, 3.0], [108.0, 4.0]]
]);
var esrijson = format.writeGeometry(multilinestring);
expect(multilinestring.getCoordinates()).to.eql(
format.readGeometry(esrijson).getCoordinates());
});
it('encodes XYZ multilinestring', function() {
var multilinestring = new ol.geom.MultiLineString([
[[102.0, 0.0, 1], [103.0, 1.0, 2], [104.0, 0.0, 3], [105.0, 1.0, 4]],
[[105.0, 3.0, 1], [106.0, 4.0, 2], [107.0, 3.0, 3], [108.0, 4.0, 4]]
], ol.geom.GeometryLayout.XYZ);
var esrijson = format.writeGeometry(multilinestring);
expect(multilinestring.getCoordinates()).to.eql(
format.readGeometry(esrijson).getCoordinates());
});
it('encodes multipolygon', function() {
var multipolygon = new ol.geom.MultiPolygon([
[[[0, 1], [1, 4], [4, 3], [3, 0]], [[2, 2], [3, 2], [3, 3], [2, 3]]],
[[[10, 1], [11, 5], [14, 3], [13, 0]]]
]);
var esrijson = format.writeGeometry(multipolygon);
expect(multipolygon.getCoordinates()).to.eql(
format.readGeometry(esrijson).getCoordinates());
});
it('encodes XYZ multipolygon', function() {
var multipolygon = new ol.geom.MultiPolygon([
[[[0, 1, 0], [1, 4, 0], [4, 3, 0], [3, 0, 0]], [[2, 2, 0], [3, 2, 0],
[3, 3, 0], [2, 3, 0]]],
[[[10, 1, 0], [11, 5, 0], [14, 3, 0], [13, 0, 0]]]
], ol.geom.GeometryLayout.XYZ);
var esrijson = format.writeGeometry(multipolygon);
expect(multipolygon.getCoordinates()).to.eql(
format.readGeometry(esrijson).getCoordinates());
});
it('transforms and encodes a point', function() {
var point = new ol.geom.Point([2, 3]);
var esrijson = format.writeGeometry(point, {
dataProjection: 'EPSG:4326',
featureProjection: 'EPSG:3857'
});
var newPoint = format.readGeometry(esrijson, {
dataProjection: 'EPSG:4326',
featureProjection: 'EPSG:3857'
});
expect(point.getCoordinates()[0]).to.roughlyEqual(
newPoint.getCoordinates()[0], 1e-8);
expect(
Math.abs(point.getCoordinates()[1] - newPoint.getCoordinates()[1]))
.to.be.lessThan(0.0000001);
});
});
describe('#writeFeatures', function() {
it('encodes feature collection', function() {
var str = JSON.stringify(data),
array = format.readFeatures(str);
var esrijson = format.writeFeaturesObject(array);
var result = format.readFeatures(esrijson);
expect(array.length).to.equal(result.length);
var got, exp, gotProp, expProp;
for (var i = 0, ii = array.length; i < ii; ++i) {
got = array[i];
exp = result[i];
expect(got.getGeometry().getCoordinates()).to.eql(
exp.getGeometry().getCoordinates());
gotProp = got.getProperties();
delete gotProp.geometry;
expProp = exp.getProperties();
delete expProp.geometry;
expect(gotProp).to.eql(expProp);
}
});
it('transforms and encodes feature collection', function() {
var str = JSON.stringify(data),
array = format.readFeatures(str);
var esrijson = format.writeFeatures(array, {
featureProjection: 'EPSG:3857',
dataProjection: 'EPSG:4326'
});
var result = format.readFeatures(esrijson);
var got, exp;
for (var i = 0, ii = array.length; i < ii; ++i) {
got = array[i];
exp = result[i];
expect(got.getGeometry().transform('EPSG:3857', 'EPSG:4326')
.getCoordinates()).to.eql(exp.getGeometry().getCoordinates());
}
});
it('writes out a feature with a different geometryName correctly',
function() {
var feature = new ol.Feature({'foo': 'bar'});
feature.setGeometryName('mygeom');
feature.setGeometry(new ol.geom.Point([5, 10]));
var esrijson = format.writeFeaturesObject([feature]);
expect(esrijson.features[0].attributes.mygeom).to.eql(undefined);
});
it('writes out a feature without properties correctly', function() {
var feature = new ol.Feature(new ol.geom.Point([5, 10]));
var esrijson = format.writeFeatureObject(feature);
expect(esrijson.attributes).to.eql({});
});
});
});