95 lines
3.1 KiB
JavaScript
95 lines
3.1 KiB
JavaScript
goog.provide('ol.test.source.TileImageSource');
|
|
|
|
describe('ol.source.TileImage', function() {
|
|
function createSource(opt_proj, opt_tileGrid) {
|
|
var proj = opt_proj || 'EPSG:3857';
|
|
return new ol.source.TileImage({
|
|
projection: proj,
|
|
tileGrid: opt_tileGrid ||
|
|
ol.tilegrid.createForProjection(proj, undefined, [2, 2]),
|
|
tileUrlFunction: ol.TileUrlFunction.createFromTemplate(
|
|
'data:image/gif;base64,R0lGODlhAQABAAAAACwAAAAAAQABAAA=')
|
|
});
|
|
}
|
|
|
|
describe('#setTileGridForProjection', function() {
|
|
it('uses the tilegrid for given projection', function() {
|
|
var source = createSource();
|
|
var tileGrid = ol.tilegrid.createForProjection('EPSG:4326', 3, [10, 20]);
|
|
source.setTileGridForProjection('EPSG:4326', tileGrid);
|
|
var retrieved = source.getTileGridForProjection(ol.proj.get('EPSG:4326'));
|
|
expect(retrieved).to.be(tileGrid);
|
|
});
|
|
});
|
|
|
|
describe('#getTile', function() {
|
|
it('does not do reprojection for identity', function() {
|
|
var source3857 = createSource('EPSG:3857');
|
|
var tile3857 = source3857.getTile(0, 0, -1, 1, ol.proj.get('EPSG:3857'));
|
|
expect(tile3857).to.be.a(ol.ImageTile);
|
|
expect(tile3857).not.to.be.a(ol.reproj.Tile);
|
|
|
|
var projXXX = new ol.proj.Projection({
|
|
code: 'XXX',
|
|
units: 'degrees'
|
|
});
|
|
var sourceXXX = createSource(projXXX);
|
|
var tileXXX = sourceXXX.getTile(0, 0, -1, 1, projXXX);
|
|
expect(tileXXX).to.be.a(ol.ImageTile);
|
|
expect(tileXXX).not.to.be.a(ol.reproj.Tile);
|
|
});
|
|
|
|
beforeEach(function() {
|
|
proj4.defs('4326_noextentnounits', '+proj=longlat +datum=WGS84 +no_defs');
|
|
});
|
|
|
|
afterEach(function() {
|
|
delete proj4.defs['4326_noextentnounits'];
|
|
});
|
|
|
|
it('can handle source projection without extent and units', function(done) {
|
|
var source = createSource('4326_noextentnounits', ol.tilegrid.createXYZ({
|
|
extent: [-180, -90, 180, 90],
|
|
tileSize: [2, 2]
|
|
}));
|
|
var tile = source.getTile(0, 0, -1, 1, ol.proj.get('EPSG:3857'));
|
|
expect(tile).to.be.a(ol.reproj.Tile);
|
|
|
|
tile.listen('change', function() {
|
|
if (tile.getState() == ol.TileState.LOADED) {
|
|
done();
|
|
}
|
|
});
|
|
tile.load();
|
|
});
|
|
|
|
it('can handle target projection without extent and units', function(done) {
|
|
var proj = ol.proj.get('4326_noextentnounits');
|
|
var source = createSource();
|
|
source.setTileGridForProjection(proj,
|
|
ol.tilegrid.createXYZ({
|
|
extent: [-180, -90, 180, 90],
|
|
tileSize: [2, 2]
|
|
}));
|
|
var tile = source.getTile(0, 0, -1, 1, proj);
|
|
expect(tile).to.be.a(ol.reproj.Tile);
|
|
|
|
tile.listen('change', function() {
|
|
if (tile.getState() == ol.TileState.LOADED) {
|
|
done();
|
|
}
|
|
});
|
|
tile.load();
|
|
});
|
|
});
|
|
});
|
|
|
|
goog.require('ol.ImageTile');
|
|
goog.require('ol.Tile');
|
|
goog.require('ol.TileState');
|
|
goog.require('ol.TileUrlFunction');
|
|
goog.require('ol.proj');
|
|
goog.require('ol.proj.Projection');
|
|
goog.require('ol.reproj.Tile');
|
|
goog.require('ol.source.TileImage');
|