e978133b85
By setting a device pixel ratio of 1.0 and increasing the tolerance for raster reprojection tests, the render tests now also run from the console on OSX devices with retina display.
178 lines
6.5 KiB
JavaScript
178 lines
6.5 KiB
JavaScript
goog.provide('ol.test.rendering.reproj.Tile');
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describe('ol.rendering.reproj.Tile', function() {
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function testSingleTile(source, targetProjection, targetTileGrid, z, x, y,
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pixelRatio, expectedUrl, expectedRequests, done) {
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var sourceProjection = source.getProjection();
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var tilesRequested = 0;
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var tile = new ol.reproj.Tile(sourceProjection, source.getTileGrid(),
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ol.proj.get(targetProjection), targetTileGrid, z, x, y, pixelRatio,
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function(z, x, y, pixelRatio) {
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tilesRequested++;
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return source.getTile(z, x, y, pixelRatio, sourceProjection);
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});
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if (tile.getState() == ol.TileState.IDLE) {
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tile.listen('change', function(e) {
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if (tile.getState() == ol.TileState.LOADED) {
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expect(tilesRequested).to.be(expectedRequests);
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resembleCanvas(tile.getImage(), expectedUrl, 7.5, done);
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}
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});
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tile.load();
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}
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}
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var source;
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describe('single tile reprojections from EPSG:3857', function() {
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beforeEach(function() {
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source = new ol.source.XYZ({
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projection: 'EPSG:3857',
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url: 'spec/ol/data/tiles/osm/{z}/{x}/{y}.png'
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});
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});
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it('works for identity reprojection', function(done) {
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testSingleTile(source, 'EPSG:3857', source.getTileGrid(), 5, 5, -13, 1,
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'spec/ol/data/tiles/osm/5/5/12.png', 1, done);
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});
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it('to EPSG:4326', function(done) {
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var tileGrid = ol.tilegrid.createForProjection('EPSG:4326', 7, [64, 64]);
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testSingleTile(source, 'EPSG:4326', tileGrid, 7, 21, -20, 1,
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'spec/ol/reproj/expected/osm4326.png', 1, done);
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});
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it('to EPSG:5070', function(done) {
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proj4.defs('EPSG:5070',
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'+proj=aea +lat_1=29.5 +lat_2=45.5 +lat_0=23 +lon_0=-96 +x_0=0 ' +
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'+y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs');
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var proj5070 = ol.proj.get('EPSG:5070');
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proj5070.setExtent([-6e6, 0, 4e6, 6e6]);
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var tileGrid = ol.tilegrid.createForProjection('EPSG:5070', 5, [64, 64]);
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testSingleTile(source, 'EPSG:5070', tileGrid, 5, 13, -15, 1,
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'spec/ol/reproj/expected/osm5070.png', 1, done);
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});
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it('to ESRI:54009', function(done) {
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proj4.defs('ESRI:54009',
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'+proj=moll +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs');
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var proj54009 = ol.proj.get('ESRI:54009');
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proj54009.setExtent([-18e6, -9e6, 18e6, 9e6]);
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var tileGrid = ol.tilegrid.createForProjection('ESRI:54009', 7, [64, 64]);
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testSingleTile(source, 'ESRI:54009', tileGrid, 7, 27, -16, 1,
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'spec/ol/reproj/expected/osm54009.png', 1, done);
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});
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});
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describe('stitching several tiles from EPSG:3857', function() {
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beforeEach(function() {
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source = new ol.source.XYZ({
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projection: 'EPSG:3857',
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url: 'spec/ol/data/tiles/osm/{z}/{x}/{y}.png'
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});
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});
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it('to EPSG:4326', function(done) {
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var tileGrid = ol.tilegrid.createForProjection('EPSG:4326', 7, [64, 64]);
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testSingleTile(source, 'EPSG:4326', tileGrid, 7, 23, -21, 1,
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'spec/ol/reproj/expected/stitch-osm4326.png', 2, done);
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});
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it('to EPSG:3740', function(done) {
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proj4.defs('EPSG:3740',
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'+proj=utm +zone=10 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 ' +
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'+units=m +no_defs');
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var proj3740 = ol.proj.get('EPSG:3740');
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proj3740.setExtent([318499.05, 2700792.39, 4359164.89, 7149336.98]);
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var tileGrid = ol.tilegrid.createForProjection('EPSG:3740', 4, [64, 64]);
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testSingleTile(source, 'EPSG:3740', tileGrid, 4, 4, -13, 1,
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'spec/ol/reproj/expected/stitch-osm3740.png', 4, done);
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});
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});
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describe('tile projection from EPSG:4326', function() {
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beforeEach(function() {
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source = new ol.source.XYZ({
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projection: 'EPSG:4326',
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maxZoom: 0,
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url: 'spec/ol/data/tiles/4326/{z}/{x}/{y}.png'
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});
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});
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it('works for identity reprojection', function(done) {
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testSingleTile(source, 'EPSG:4326', source.getTileGrid(), 0, 0, -1, 1,
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'spec/ol/data/tiles/4326/0/0/0.png', 1, done);
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});
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it('to EPSG:3857', function(done) {
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var tileGrid = ol.tilegrid.createForProjection('EPSG:3857', 0, [64, 64]);
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testSingleTile(source, 'EPSG:3857', tileGrid, 0, 0, -1, 1,
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'spec/ol/reproj/expected/4326-to-3857.png', 1, done);
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});
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});
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describe('non-square source tiles', function() {
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beforeEach(function() {
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source = new ol.source.XYZ({
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projection: 'EPSG:3857',
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url: 'spec/ol/data/tiles/osm-512x256/{z}/{x}/{y}.png',
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tileSize: [512, 256]
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});
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});
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it('works for identity reprojection', function(done) {
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testSingleTile(source, 'EPSG:3857', source.getTileGrid(), 5, 3, -13, 1,
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'spec/ol/data/tiles/osm-512x256/5/3/12.png', 1, done);
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});
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it('to 64x128 EPSG:4326', function(done) {
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var tileGrid = ol.tilegrid.createForProjection('EPSG:4326', 7, [64, 128]);
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testSingleTile(source, 'EPSG:4326', tileGrid, 7, 27, -10, 1,
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'spec/ol/reproj/expected/512x256-to-64x128.png', 1, done);
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});
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});
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describe('dateline wrapping', function() {
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beforeEach(function() {
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source = new ol.source.XYZ({
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projection: 'EPSG:4326',
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maxZoom: 0,
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url: 'spec/ol/data/tiles/4326/{z}/{x}/{y}.png'
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});
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});
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it('wraps X when prime meridian is shifted', function(done) {
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proj4.defs('merc_180', '+proj=merc +lon_0=180 +units=m +no_defs');
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var proj_ = ol.proj.get('merc_180');
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proj_.setExtent([-20026376.39, -20048966.10, 20026376.39, 20048966.10]);
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var tileGrid = ol.tilegrid.createForProjection('merc_180', 0, [64, 64]);
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testSingleTile(source, 'merc_180', tileGrid, 0, 0, -1, 1,
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'spec/ol/reproj/expected/dateline-merc-180.png', 2, done);
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});
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it('displays north pole correctly (EPSG:3413)', function(done) {
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proj4.defs('EPSG:3413', '+proj=stere +lat_0=90 +lat_ts=70 +lon_0=-45 ' +
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'+k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs');
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var proj3413 = ol.proj.get('EPSG:3413');
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proj3413.setExtent([-4194304, -4194304, 4194304, 4194304]);
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var tileGrid = ol.tilegrid.createForProjection('EPSG:3413', 0, [64, 64]);
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testSingleTile(source, 'EPSG:3413', tileGrid, 0, 0, -1, 1,
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'spec/ol/reproj/expected/dateline-pole.png', 2, done);
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});
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});
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});
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goog.require('ol.proj');
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goog.require('ol.reproj.Tile');
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goog.require('ol.source.XYZ');
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goog.require('ol.TileState');
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