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Display current OS copyright date

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Display current OS copyright date to keep up with source updates https://www.arcgis.com/home/item.html?id=7561029c176d43d09a5aa1180ada309a
Increase EPSG:27700 extent beyond the usual definition to the visible extent of the OS Overview layer
This commit is contained in:
mike-000
2020-09-27 15:14:59 +01:00
committed by GitHub
parent 689711607f
commit 9e8d49e485
1 changed files with 8 additions and 5 deletions
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13
examples/reprojection.js
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@@ -7,7 +7,7 @@ import WMTSCapabilities from '../src/ol/format/WMTSCapabilities.js';
import proj4 from 'proj4';
import {OSM, TileImage, TileWMS} from '../src/ol/source.js';
import {getCenter, getWidth} from '../src/ol/extent.js';
import {get as getProjection} from '../src/ol/proj.js';
import {get as getProjection, transformExtent} from '../src/ol/proj.js';
import {register} from '../src/ol/proj/proj4.js';
proj4.defs(
@@ -51,7 +51,7 @@ proj4.defs(
register(proj4);
const proj27700 = getProjection('EPSG:27700');
proj27700.setExtent([0, 0, 700000, 1300000]);
proj27700.setExtent([-650000, -150000, 1350000, 1450000]);
const proj23032 = getProjection('EPSG:23032');
proj23032.setExtent([-1206118.71, 4021309.92, 1295389.0, 8051813.28]);
@@ -139,7 +139,8 @@ fetch(urlB)
layer: 'OS_Open_Raster',
});
options.attributions =
'Contains OS data © Crown Copyright and database right 2019';
'Contains OS data © Crown Copyright and database right ' +
new Date().getFullYear();
options.crossOrigin = '';
options.projection = 'EPSG:27700';
options.wrapX = false;
@@ -195,8 +196,10 @@ function updateViewProjection() {
map.setView(newView);
// Example how to prevent double occurrence of map by limiting layer extent
if (newProj == getProjection('EPSG:3857')) {
layers['bng'].setExtent([-1057216, 6405988, 404315, 8759696]);
if (newProj.isGlobal()) {
layers['bng'].setExtent(
transformExtent(proj27700.getExtent(), proj27700, newProj, 2)
);
} else {
layers['bng'].setExtent(undefined);
}