products/Sources/formale Sprachen/C/Firefox/dom/canvas/test/test_2d.path.rect.selfintersect.html
<!DOCTYPE HTML >
<title >Canvas test: 2 d.path.rect.selfintersect</title >
<script src="/tests/SimpleTest/SimpleTest.js" ></script >
<link rel="stylesheet" href="/tests/SimpleTest/test.css" >
<body >
<canvas id="c" width="100" height="50" style ="background: #f00" ><p class="fallback" >FAIL (fallback content)</p></canvas >
<script >
function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) {
var pixel = ctx.getImageData(x, y, 1 , 1 );
var pr = pixel.data[0 ],
pg = pixel.data[1 ],
pb = pixel.data[2 ],
pa = pixel.data[3 ];
ok(r-d <= pr && pr <= r+d &&
g-d <= pg && pg <= g+d &&
b-d <= pb && pb <= b+d &&
a-d <= pa && pa <= a+d,
"pixel " +pos+" is " +pr+"," +pg+"," +pb+"," +pa+"; expected " +colour+" +/- " +d);
}
function todo_isPixel(ctx, x,y, r,g,b,a, pos, colour, d) {
var pixel = ctx.getImageData(x, y, 1 , 1 );
var pr = pixel.data[0 ],
pg = pixel.data[1 ],
pb = pixel.data[2 ],
pa = pixel.data[3 ];
todo(r-d <= pr && pr <= r+d &&
g-d <= pg && pg <= g+d &&
b-d <= pb && pb <= b+d &&
a-d <= pa && pa <= a+d,
"pixel " +pos+" is " +pr+"," +pg+"," +pb+"," +pa+"; expected " +colour+" +/- " +d);
}
SimpleTest.waitForExplicitFinish();
addLoadEvent(function () {
var canvas = document.getElementById('c' );
var ctx = canvas .getContext('2d' );
ctx.strokeStyle = '#0f0' ;
ctx.lineWidth = 90 ;
ctx.beginPath();
ctx.rect(45 , 20 , 10 , 10 );
ctx.stroke();
isPixel(ctx, 50 ,25 , 0 ,255 ,0 ,255 , "50,25" , "0,255,0,255" , 0 );
SimpleTest.finish();
});
</script >
Messung V0.5 in Prozent C=100 H=100 G=100
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-06-09)
¤
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