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| <!DOCTYPE html>
<html lang="fr" dir="ltr">
<head>
<meta http-equiv="cache-control" content="public, max-age=60">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="author" content="Daniel Hagnoul">
<title>Test</title>
<style>
</style>
<script>
'use strict';
document.addEventListener( 'DOMContentLoaded', ev => {
}, false );
window.addEventListener( 'load', ev => {
const
canvasSoldat = document.querySelector( "#soldat"),
ctxSoldat = canvasSoldat.getContext( "2d" ),
imageSoldat = new Image();
imageSoldat.src = "http://tx3.travian.fr/hero_body.php?uid=2743";
imageSoldat.addEventListener( "load", ev => {
canvasSoldat.width = imageSoldat.width;
canvasSoldat.height = imageSoldat.height;
ctxSoldat.drawImage( imageSoldat, 0, 0 );
}, false );
document.querySelector( "#pixel" ).addEventListener( "click", ev => {
// test, position dans l'image 10, 50
let pixelData = ctxSoldat.getImageData( 10, 50, 1, 1 );
console.log( pixelData );
// Failed to execute 'getImageData' on 'CanvasRenderingContext2D': The canvas has been tainted by cross-origin data.
})
}, false );
</script>
</head>
<body>
<main>
<canvas id="soldat"></canvas>
<button id="pixel">Pixel</button>
</main>
</body>
</html> |
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