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OGC vector tile source

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This commit is contained in:
Tim Schaub
2021-08-29 15:34:29 -06:00
parent 791add0d73
commit 4099f60779
11 changed files with 1512 additions and 308 deletions
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85
test/node/ol/source/data/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad.json Normal file
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{
"title" : "blueMarble",
"dataType" : "map",
"tileMatrixSetURI" : "http://www.opengis.net/def/tilematrixset/OGC/1.0/WebMercatorQuad",
"tileMatrixSetDefinition" : "https://maps.ecere.com/ogcapi/tileMatrixSets/WebMercatorQuad",
"tileMatrixSetLimits" : [
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],
"centerPoint" : {
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"cellSize" : 9783.9396205025605
},
"links" : [
{
"rel" : "self",
"type" : "application/json",
"title" : "The JSON representation of the WebMercatorQuad map tileset for blueMarble",
"href" : "/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad?f=json"
},
{
"rel" : "alternate",
"type" : "text/plain",
"title" : "The ECON representation of the WebMercatorQuad map tileset for blueMarble",
"href" : "/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad?f=econ"
},
{
"rel" : "alternate",
"type" : "text/html",
"title" : "The HTML representation of the WebMercatorQuad map tileset for blueMarble",
"href" : "/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad?=html"
},
{
"rel" : "alternate",
"type" : "application/json+tile",
"title" : "The TileJSON representation of the WebMercatorQuad map tileset for blueMarble",
"href" : "/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad?f=tilejson"
},
{
"rel" : "http://www.opengis.net/def/rel/ogc/1.0/geodata",
"href" : "/ogcapi/collections/blueMarble"
},
{
"rel" : "item",
"type" : "application/vnd.gnosis-map-tile",
"title" : "WebMercatorQuad map tiles for blueMarble (as GNOSIS Map Tiles)",
"href" : "/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad/{tileMatrix}/{tileRow}/{tileCol}.gmt",
"templated" : true
},
{
"rel" : "item",
"type" : "image/png",
"title" : "WebMercatorQuad map tiles for blueMarble (as PNG)",
"href" : "/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad/{tileMatrix}/{tileRow}/{tileCol}.png",
"templated" : true
},
{
"rel" : "item",
"type" : "image/jpeg",
"title" : "WebMercatorQuad map tiles for blueMarble (as JPG)",
"href" : "/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad/{tileMatrix}/{tileRow}/{tileCol}.jpg",
"templated" : true
},
{
"rel" : "item",
"type" : "image/tiff; application=geotiff",
"title" : "WebMercatorQuad map tiles for blueMarble (as GeoTIFF)",
"href" : "/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad/{tileMatrix}/{tileRow}/{tileCol}.tif",
"templated" : true
}
]
}

229
test/node/ol/source/data/ogcapi/collections/ne_10m_admin_0_countries/tiles/WebMercatorQuad.json Normal file
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{
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}
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},
{
"rel" : "item",
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"title" : "WebMercatorQuad vector tiles for NaturalEarth:cultural:ne_10m_admin_0_countries (as GNOSIS Map Tiles)",
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}

433
test/node/ol/source/data/ogcapi/tileMatrixSets/WebMercatorQuad.json Normal file
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{
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"matrixWidth" : 8388608,
"matrixHeight" : 8388608,
"tileWidth" : 256,
"tileHeight" : 256
},
{
"id" : "24",
"scaleDenominator" : 33.3238997476529,
"cellSize" : 0.0093306919293,
"cornerOfOrigin" : "topLeft",
"pointOfOrigin" : [
-20037508.3427892439067,
20037508.3427892439067
],
"matrixWidth" : 16777216,
"matrixHeight" : 16777216,
"tileWidth" : 256,
"tileHeight" : 256
},
{
"id" : "25",
"scaleDenominator" : 16.6619498738264,
"cellSize" : 0.0046653459647,
"cornerOfOrigin" : "topLeft",
"pointOfOrigin" : [
-20037508.3427892439067,
20037508.3427892439067
],
"matrixWidth" : 33554432,
"matrixHeight" : 33554432,
"tileWidth" : 256,
"tileHeight" : 256
},
{
"id" : "26",
"scaleDenominator" : 8.3309749369132,
"cellSize" : 0.0023326729823,
"cornerOfOrigin" : "topLeft",
"pointOfOrigin" : [
-20037508.3427892439067,
20037508.3427892439067
],
"matrixWidth" : 67108864,
"matrixHeight" : 67108864,
"tileWidth" : 256,
"tileHeight" : 256
},
{
"id" : "27",
"scaleDenominator" : 4.1654874684566,
"cellSize" : 0.0011663364912,
"cornerOfOrigin" : "topLeft",
"pointOfOrigin" : [
-20037508.3427892439067,
20037508.3427892439067
],
"matrixWidth" : 134217728,
"matrixHeight" : 134217728,
"tileWidth" : 256,
"tileHeight" : 256
},
{
"id" : "28",
"scaleDenominator" : 2.0827437342283,
"cellSize" : 0.0005831682456,
"cornerOfOrigin" : "topLeft",
"pointOfOrigin" : [
-20037508.3427892439067,
20037508.3427892439067
],
"matrixWidth" : 268435456,
"matrixHeight" : 268435456,
"tileWidth" : 256,
"tileHeight" : 256
},
{
"id" : "29",
"scaleDenominator" : 1.0413718671142,
"cellSize" : 0.0002915841228,
"cornerOfOrigin" : "topLeft",
"pointOfOrigin" : [
-20037508.3427892439067,
20037508.3427892439067
],
"matrixWidth" : 536870912,
"matrixHeight" : 536870912,
"tileWidth" : 256,
"tileHeight" : 256
}
]
}

208
test/node/ol/source/ogcTileUtil.test.js Normal file
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@@ -0,0 +1,208 @@
import TileGrid from '../../../../src/ol/tilegrid/TileGrid.js';
import events from 'events';
import expect from '../../expect.js';
import fse from 'fs-extra';
import path from 'path';
import {fileURLToPath} from 'url';
import {
getMapTileUrlTemplate,
getTileSetInfo,
getVectorTileUrlTemplate,
} from '../../../../src/ol/source/ogcTileUtil.js';
import {overrideXHR, restoreXHR} from '../../../../src/ol/net.js';
function getDataDir() {
const modulePath = fileURLToPath(import.meta.url);
return path.join(path.dirname(modulePath), 'data');
}
let baseUrl;
class MockXHR extends events.EventEmitter {
addEventListener(type, listener) {
this.addListener(type, listener);
}
open(method, url) {
if (url.startsWith(baseUrl)) {
url = url.slice(baseUrl.length);
}
this.url = url;
}
setRequestHeader(key, value) {
// no-op
}
send() {
let url = path.resolve(getDataDir(), this.url);
if (!url.endsWith('.json')) {
url = url + '.json';
}
fse.readJSON(url).then(
(data) => {
this.status = 200;
this.responseText = JSON.stringify(data);
this.emit('load', {target: this});
},
(err) => {
console.error(err); // eslint-disable-line
this.emit('error', {target: this});
}
);
}
}
describe('ol/source/ogcTileUtil.js', () => {
describe('getTileSetInfo()', () => {
beforeEach(() => {
overrideXHR(MockXHR);
});
afterEach(() => {
baseUrl = '';
restoreXHR();
});
it('fetches and parses map tile info', async () => {
baseUrl = 'https://maps.ecere.com/';
const sourceInfo = {
url: 'https://maps.ecere.com/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad',
};
const tileInfo = await getTileSetInfo(sourceInfo);
expect(tileInfo).to.be.an(Object);
expect(tileInfo.urlTemplate).to.be(
'/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad/{tileMatrix}/{tileRow}/{tileCol}.jpg'
);
expect(tileInfo.grid).to.be.a(TileGrid);
expect(tileInfo.grid.getTileSize(0)).to.eql([256, 256]);
expect(tileInfo.grid.getResolutions()).to.have.length(30);
expect(tileInfo.urlFunction).to.be.a(Function);
expect(tileInfo.urlFunction([1, 2, 3])).to.be(
'https://maps.ecere.com/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad/1/3/2.jpg'
);
});
it('allows preferred media type to be configured', async () => {
baseUrl = 'https://maps.ecere.com/';
const sourceInfo = {
url: 'https://maps.ecere.com/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad',
mediaType: 'image/png',
};
const tileInfo = await getTileSetInfo(sourceInfo);
expect(tileInfo).to.be.an(Object);
expect(tileInfo.urlTemplate).to.be(
'/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad/{tileMatrix}/{tileRow}/{tileCol}.png'
);
expect(tileInfo.urlFunction).to.be.a(Function);
expect(tileInfo.urlFunction([1, 2, 3])).to.be(
'https://maps.ecere.com/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad/1/3/2.png'
);
});
it('fetches and parses vector tile info', async () => {
baseUrl = 'https://maps.ecere.com/';
const sourceInfo = {
url: 'https://maps.ecere.com/ogcapi/collections/ne_10m_admin_0_countries/tiles/WebMercatorQuad',
};
const tileInfo = await getTileSetInfo(sourceInfo);
expect(tileInfo).to.be.an(Object);
expect(tileInfo.urlTemplate).to.be(
'/ogcapi/collections/NaturalEarth:cultural:ne_10m_admin_0_countries/tiles/WebMercatorQuad/{tileMatrix}/{tileRow}/{tileCol}.json'
);
expect(tileInfo.grid).to.be.a(TileGrid);
expect(tileInfo.grid.getTileSize(0)).to.eql([256, 256]);
expect(tileInfo.grid.getResolutions()).to.have.length(30);
expect(tileInfo.urlFunction).to.be.a(Function);
expect(tileInfo.urlFunction([1, 2, 3])).to.be(
'https://maps.ecere.com/ogcapi/collections/NaturalEarth:cultural:ne_10m_admin_0_countries/tiles/WebMercatorQuad/1/3/2.json'
);
});
it('allows preferred media type to be configured', async () => {
baseUrl = 'https://maps.ecere.com/';
const sourceInfo = {
url: 'https://maps.ecere.com/ogcapi/collections/ne_10m_admin_0_countries/tiles/WebMercatorQuad',
mediaType: 'application/vnd.mapbox-vector-tile',
};
const tileInfo = await getTileSetInfo(sourceInfo);
expect(tileInfo).to.be.an(Object);
expect(tileInfo.urlTemplate).to.be(
'/ogcapi/collections/NaturalEarth:cultural:ne_10m_admin_0_countries/tiles/WebMercatorQuad/{tileMatrix}/{tileRow}/{tileCol}.mvt'
);
expect(tileInfo.urlFunction).to.be.a(Function);
expect(tileInfo.urlFunction([1, 2, 3])).to.be(
'https://maps.ecere.com/ogcapi/collections/NaturalEarth:cultural:ne_10m_admin_0_countries/tiles/WebMercatorQuad/1/3/2.mvt'
);
});
});
describe('getVectorTileUrlTemplate()', () => {
let links;
before(async () => {
const url = path.join(
getDataDir(),
'ogcapi/collections/ne_10m_admin_0_countries/tiles/WebMercatorQuad.json'
);
const tileSet = await fse.readJSON(url);
links = tileSet.links;
});
it('gets the last known vector type if the preferred media type is absent', () => {
const urlTemplate = getVectorTileUrlTemplate(links);
expect(urlTemplate).to.be(
'/ogcapi/collections/NaturalEarth:cultural:ne_10m_admin_0_countries/tiles/WebMercatorQuad/{tileMatrix}/{tileRow}/{tileCol}.json'
);
});
it('gets the preferred media type if given', () => {
const urlTemplate = getVectorTileUrlTemplate(
links,
'application/vnd.mapbox-vector-tile'
);
expect(urlTemplate).to.be(
'/ogcapi/collections/NaturalEarth:cultural:ne_10m_admin_0_countries/tiles/WebMercatorQuad/{tileMatrix}/{tileRow}/{tileCol}.mvt'
);
});
it('throws if it cannot find preferred media type or a known fallback', () => {
function call() {
getVectorTileUrlTemplate([], 'application/vnd.mapbox-vector-tile');
}
expect(call).to.throwException('Could not find "item" link');
});
});
describe('getMapTileUrlTemplate()', () => {
let links;
before(async () => {
const url = path.join(
getDataDir(),
'ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad.json'
);
const tileSet = await fse.readJSON(url);
links = tileSet.links;
});
it('gets the last known image type if the preferred media type is absent', () => {
const urlTemplate = getMapTileUrlTemplate(links);
expect(urlTemplate).to.be(
'/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad/{tileMatrix}/{tileRow}/{tileCol}.jpg'
);
});
it('gets the preferred media type if given', () => {
const urlTemplate = getMapTileUrlTemplate(links, 'image/png');
expect(urlTemplate).to.be(
'/ogcapi/collections/blueMarble/map/tiles/WebMercatorQuad/{tileMatrix}/{tileRow}/{tileCol}.png'
);
});
it('throws if it cannot find preferred media type or a known fallback', () => {
function call() {
getMapTileUrlTemplate([], 'image/png');
}
expect(call).to.throwException('Could not find "item" link');
});
});
});