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Stop using deprecated search API from EPSG.io #15806

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May 7, 2024
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Stop using deprecated search API from EPSG.io #15806

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10 changes: 7 additions & 3 deletions examples/reprojection-by-code.html
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Original file line number Diff line number Diff line change
@@ -1,14 +1,18 @@
---
layout: example.html
title: Reprojection with EPSG.io Search
title: Reprojection with coordinate system search
shortdesc: Demonstrates client-side raster reprojection of OSM to arbitrary projection
docs: >
This example shows client-side raster reprojection capabilities from
OSM (EPSG:3857) to arbitrary projection by searching
in <a href="https://epsg.io/">EPSG.io</a> database.
tags: "reprojection, projection, proj4js, epsg.io, graticule"
in <a href="https://docs.maptiler.com/cloud/api/coordinates/">MapTiler Cloud Coordinates API</a>.
**Note**: Make sure to get your own API key at https://www.maptiler.com/cloud/ when using this example.
tags: "reprojection, projection, proj4js, epsg, maptiler, graticule"
resources:
- https://cdn.jsdelivr.net/npm/bootstrap@5.2.0/dist/css/bootstrap.min.css
cloak:
- key: get_your_own_D6rA4zTHduk6KOKTXzGB
value: Get your own API key at https://www.maptiler.com/cloud/
---
<div id="map" class="map"></div>
<form class="row">
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23 changes: 12 additions & 11 deletions examples/reprojection-by-code.js
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Original file line number Diff line number Diff line change
Expand Up @@ -70,21 +70,19 @@ function setProjection(code, name, proj4def, bbox) {

resultSpan.innerHTML = '(' + code + ') ' + name;

const newProjCode = 'EPSG:' + code;
proj4.defs(newProjCode, proj4def);
proj4.defs(code, proj4def);
register(proj4);
const newProj = getProjection(newProjCode);
const newProj = getProjection(code);
const fromLonLat = getTransform('EPSG:4326', newProj);

let worldExtent = [bbox[1], bbox[2], bbox[3], bbox[0]];
newProj.setWorldExtent(worldExtent);
newProj.setWorldExtent(bbox);

// approximate calculation of projection extent,
// checking if the world extent crosses the dateline
if (bbox[1] > bbox[3]) {
worldExtent = [bbox[1], bbox[2], bbox[3] + 360, bbox[0]];
if (bbox[0] > bbox[2]) {
bbox[2] += 360;
}
const extent = applyTransform(worldExtent, fromLonLat, undefined, 8);
const extent = applyTransform(bbox, fromLonLat, undefined, 8);
newProj.setExtent(extent);
const newView = new View({
projection: newProj,
Expand All @@ -95,7 +93,9 @@ function setProjection(code, name, proj4def, bbox) {

function search(query) {
resultSpan.innerHTML = 'Searching ...';
fetch('https://epsg.io/?format=json&q=' + query)
fetch(
`https://api.maptiler.com/coordinates/search/${query}.json?exports=true&key=get_your_own_D6rA4zTHduk6KOKTXzGB`,
)
.then(function (response) {
return response.json();
})
Expand All @@ -105,9 +105,10 @@ function search(query) {
for (let i = 0, ii = results.length; i < ii; i++) {
const result = results[i];
if (result) {
const code = result['code'];
const id = result['id'];
const code = id['authority'] + ':' + id['code'];
const name = result['name'];
const proj4def = result['wkt'];
const proj4def = result['exports']['wkt'];
const bbox = result['bbox'];
if (
code &&
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