Replace ol.tilegrid.XYZ with an ol.tilegrid.createXYZ function
This commit is contained in:
Andreas Hocevar
@@ -442,6 +442,32 @@ describe('ol.tilegrid.TileGrid', function() {
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});
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describe('createXYZ()', function() {
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it('uses defaults', function() {
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var tileGrid = ol.tilegrid.createXYZ();
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expect(tileGrid.getExtent()).to.eql(
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ol.proj.get('EPSG:3857').getExtent());
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expect(tileGrid.getMinZoom()).to.equal(0);
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expect(tileGrid.getMaxZoom()).to.equal(ol.DEFAULT_MAX_ZOOM);
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expect(tileGrid.getTileSize()).to.equal(ol.DEFAULT_TILE_SIZE);
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});
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it('respects configuration options', function() {
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var tileGrid = ol.tilegrid.createXYZ({
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extent: [10, 20, 30, 40],
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minZoom: 1,
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maxZoom: 2,
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tileSize: 128
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});
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expect(tileGrid.getExtent()).to.eql([10, 20, 30, 40]);
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expect(tileGrid.getMinZoom()).to.equal(1);
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expect(tileGrid.getMaxZoom()).to.equal(2);
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expect(tileGrid.getTileSize()).to.equal(128);
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});
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});
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describe('getForProjection', function() {
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it('gets the default tile grid for a projection', function() {
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@@ -1,168 +0,0 @@
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goog.provide('ol.test.tilegrid.XYZ');
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describe('ol.tilegrid.XYZ', function() {
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var xyzTileGrid;
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beforeEach(function() {
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xyzTileGrid = new ol.tilegrid.XYZ({
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maxZoom: 22
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});
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});
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describe('#getTileCoordChildTileRange()', function() {
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it('returns the tile range for one zoom level deeper', function() {
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var range;
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range = xyzTileGrid.getTileCoordChildTileRange([0, 0, 0]);
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expect(range.minX).to.be(0);
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expect(range.maxX).to.be(1);
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expect(range.minY).to.be(0);
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expect(range.maxY).to.be(1);
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range = xyzTileGrid.getTileCoordChildTileRange([0, 1, 0]);
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expect(range.minX).to.be(2);
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expect(range.maxX).to.be(3);
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expect(range.minY).to.be(0);
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expect(range.maxY).to.be(1);
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range = xyzTileGrid.getTileCoordChildTileRange([0, 0, 1]);
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expect(range.minX).to.be(0);
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expect(range.maxX).to.be(1);
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expect(range.minY).to.be(2);
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expect(range.maxY).to.be(3);
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range = xyzTileGrid.getTileCoordChildTileRange([0, -1, 0]);
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expect(range.minX).to.be(-2);
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expect(range.maxX).to.be(-1);
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expect(range.minY).to.be(0);
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expect(range.maxY).to.be(1);
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range = xyzTileGrid.getTileCoordChildTileRange([0, 0, -1]);
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expect(range.minX).to.be(0);
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expect(range.maxX).to.be(1);
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expect(range.minY).to.be(-2);
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expect(range.maxY).to.be(-1);
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});
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it('returns null for z > maxZoom', function() {
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var max = xyzTileGrid.maxZoom;
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var range = xyzTileGrid.getTileCoordChildTileRange([max + 1, 0, 0]);
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expect(range).to.be(null);
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});
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it('is like ol.tilegrid.TileGrid#getTileCoordChildTileRange()', function() {
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var superMethod = ol.tilegrid.TileGrid.prototype
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.getTileCoordChildTileRange.bind(xyzTileGrid);
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var coord, selfRange, superRange;
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coord = [0, 0, 0];
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selfRange = xyzTileGrid.getTileCoordChildTileRange(coord);
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superRange = superMethod(coord);
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expect(selfRange.minX).to.be(superRange.minX);
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expect(selfRange.maxX).to.be(superRange.maxX);
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expect(selfRange.minY).to.be(superRange.minY);
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expect(selfRange.maxY).to.be(superRange.maxY);
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coord = [1, 2, 3];
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selfRange = xyzTileGrid.getTileCoordChildTileRange(coord);
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superRange = superMethod(coord);
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expect(selfRange.minX).to.be(superRange.minX);
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expect(selfRange.maxX).to.be(superRange.maxX);
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expect(selfRange.minY).to.be(superRange.minY);
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expect(selfRange.maxY).to.be(superRange.maxY);
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});
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});
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describe('forEachTileCoordParentTileRange', function() {
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it('iterates as expected', function() {
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var tileCoord = [5, 11, 21];
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var zs = [], tileRanges = [];
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xyzTileGrid.forEachTileCoordParentTileRange(
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tileCoord,
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function(z, tileRange) {
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zs.push(z);
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tileRanges.push(new ol.TileRange(
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tileRange.minX, tileRange.maxX,
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tileRange.minY, tileRange.maxY));
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return false;
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});
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expect(zs.length).to.eql(5);
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expect(tileRanges.length).to.eql(5);
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expect(zs[0]).to.eql(4);
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expect(tileRanges[0].minX).to.eql(5);
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expect(tileRanges[0].maxX).to.eql(5);
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expect(tileRanges[0].minY).to.eql(10);
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expect(tileRanges[0].maxY).to.eql(10);
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expect(zs[1]).to.eql(3);
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expect(tileRanges[1].minX).to.eql(2);
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expect(tileRanges[1].maxX).to.eql(2);
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expect(tileRanges[1].minY).to.eql(5);
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expect(tileRanges[1].maxY).to.eql(5);
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expect(zs[2]).to.eql(2);
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expect(tileRanges[2].minX).to.eql(1);
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expect(tileRanges[2].maxX).to.eql(1);
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expect(tileRanges[2].minY).to.eql(2);
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expect(tileRanges[2].maxY).to.eql(2);
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expect(zs[3]).to.eql(1);
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expect(tileRanges[3].minX).to.eql(0);
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expect(tileRanges[3].maxX).to.eql(0);
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expect(tileRanges[3].minY).to.eql(1);
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expect(tileRanges[3].maxY).to.eql(1);
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expect(zs[4]).to.eql(0);
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expect(tileRanges[4].minX).to.eql(0);
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expect(tileRanges[4].maxX).to.eql(0);
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expect(tileRanges[4].minY).to.eql(0);
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expect(tileRanges[4].maxY).to.eql(0);
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});
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});
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describe('getResolution', function() {
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it('returns the correct resolution at the equator', function() {
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// @see http://msdn.microsoft.com/en-us/library/aa940990.aspx
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expect(xyzTileGrid.getResolution(0)).to.roughlyEqual(156543.04, 1e-2);
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expect(xyzTileGrid.getResolution(1)).to.roughlyEqual(78271.52, 1e-2);
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expect(xyzTileGrid.getResolution(2)).to.roughlyEqual(39135.76, 1e-2);
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expect(xyzTileGrid.getResolution(3)).to.roughlyEqual(19567.88, 1e-2);
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expect(xyzTileGrid.getResolution(4)).to.roughlyEqual(9783.94, 1e-2);
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expect(xyzTileGrid.getResolution(5)).to.roughlyEqual(4891.97, 1e-2);
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expect(xyzTileGrid.getResolution(6)).to.roughlyEqual(2445.98, 1e-2);
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expect(xyzTileGrid.getResolution(7)).to.roughlyEqual(1222.99, 1e-2);
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expect(xyzTileGrid.getResolution(8)).to.roughlyEqual(611.50, 1e-2);
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expect(xyzTileGrid.getResolution(9)).to.roughlyEqual(305.75, 1e-2);
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expect(xyzTileGrid.getResolution(10)).to.roughlyEqual(152.87, 1e-2);
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expect(xyzTileGrid.getResolution(11)).to.roughlyEqual(76.44, 1e-2);
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expect(xyzTileGrid.getResolution(12)).to.roughlyEqual(38.22, 1e-2);
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expect(xyzTileGrid.getResolution(13)).to.roughlyEqual(19.11, 1e-2);
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expect(xyzTileGrid.getResolution(14)).to.roughlyEqual(9.55, 1e-2);
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expect(xyzTileGrid.getResolution(15)).to.roughlyEqual(4.78, 1e-2);
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expect(xyzTileGrid.getResolution(16)).to.roughlyEqual(2.39, 1e-2);
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expect(xyzTileGrid.getResolution(17)).to.roughlyEqual(1.19, 1e-2);
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expect(xyzTileGrid.getResolution(18)).to.roughlyEqual(0.60, 1e-2);
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expect(xyzTileGrid.getResolution(19)).to.roughlyEqual(0.30, 1e-2);
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});
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});
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});
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goog.require('ol.TileCoord');
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goog.require('ol.TileRange');
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goog.require('ol.tilegrid.TileGrid');
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goog.require('ol.tilegrid.XYZ');
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