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Fix ScaleLine control now that getPointResolution works correctly

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This commit is contained in:
ahocevar
2019-02-07 12:26:18 +01:00
parent fecb8de769
commit 703dadfcde
2 changed files with 58 additions and 13 deletions
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61
test/spec/ol/control/scaleline.test.js
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@@ -1,8 +1,10 @@
import Map from '../../../../src/ol/Map.js';
import View from '../../../../src/ol/View.js';
import ScaleLine, {render} from '../../../../src/ol/control/ScaleLine.js';
import {fromLonLat} from '../../../../src/ol/proj.js';
import {fromLonLat, clearAllProjections, addCommon} from '../../../../src/ol/proj.js';
import Projection from '../../../../src/ol/proj/Projection.js';
import proj4 from 'proj4';
import {register} from '../../../../src/ol/proj/proj4.js';
describe('ol.control.ScaleLine', function() {
let map;
@@ -244,6 +246,25 @@ describe('ol.control.ScaleLine', function() {
});
describe('projections affect the scaleline', function() {
beforeEach(function() {
proj4.defs('Indiana-East', 'PROJCS["IN83-EF",GEOGCS["LL83",DATUM["NAD83",' +
'SPHEROID["GRS1980",6378137.000,298.25722210]],PRIMEM["Greenwich",0],' +
'UNIT["Degree",0.017453292519943295]],PROJECTION["Transverse_Mercator"],' +
'PARAMETER["false_easting",328083.333],' +
'PARAMETER["false_northing",820208.333],' +
'PARAMETER["scale_factor",0.999966666667],' +
'PARAMETER["central_meridian",-85.66666666666670],' +
'PARAMETER["latitude_of_origin",37.50000000000000],' +
'UNIT["Foot_US",0.30480060960122]]');
register(proj4);
});
afterEach(function() {
clearAllProjections();
addCommon();
});
it('is rendered differently for different projections', function() {
const ctrl = new ScaleLine();
ctrl.setMap(map);
@@ -253,15 +274,47 @@ describe('ol.control.ScaleLine', function() {
projection: 'EPSG:3857'
}));
map.renderSync();
const innerHtml3857 = ctrl.element.innerHTML;
expect(ctrl.element.innerText).to.be('2000 km');
map.setView(new View({
center: [7, 52],
zoom: 2,
projection: 'EPSG:4326'
}));
map.renderSync();
const innerHtml4326 = ctrl.element.innerHTML;
expect(innerHtml4326).to.not.be(innerHtml3857);
expect(ctrl.element.innerText).to.be('5000 km');
map.setView(new View({
center: fromLonLat([-85.685, 39.891], 'Indiana-East'),
zoom: 7,
projection: 'Indiana-East'
}));
map.renderSync();
expect(ctrl.element.innerText).to.be('100 km');
});
it('shows the same scale for different projections at higher resolutions', function() {
const ctrl = new ScaleLine();
ctrl.setMap(map);
map.setView(new View({
center: fromLonLat([-85.685, 39.891]),
zoom: 7,
projection: 'EPSG:3857'
}));
map.renderSync();
expect(ctrl.element.innerText).to.be('100 km');
map.setView(new View({
center: [-85.685, 39.891],
zoom: 7,
projection: 'EPSG:4326'
}));
map.renderSync();
expect(ctrl.element.innerText).to.be('100 km');
map.setView(new View({
center: fromLonLat([-85.685, 39.891], 'Indiana-East'),
zoom: 7,
projection: 'Indiana-East'
}));
map.renderSync();
expect(ctrl.element.innerText).to.be('100 km');
});
it('Projection\'s metersPerUnit affect scale for non-degree units', function() {