In the bit of code posted below, I get a 256x128 canvas, sized via
CSS. Then I write a color wash, same dimensions. Problem: wash is
about 10% smaller than the canvas. Results identical, FF on WinXP,
Opera on WinXP, Opera on KDE. Was hoping that 256x128 would fit nicely
in 256x128.
------------------------------------------------------------
<! wash.html - experiment with drawing wash for color chooser >
<html>
<head>
<titleColor Wash </title>
<script>
privs = {
steph:4,
stepv:4
}
function init() {
var wash = document.getElementById( 'wash' );
var pen = wash.getContext( '2d' );
var h = privs.steph;
var v = privs.stepv;
for ( var r=0; r < 128; r += v ) {
for ( var c=0; c<256; c+= h ) {
// alert( 'r='+r+', c='+c+', v='+v+', h='+h );
pen.fillStyle = 'rgb( '+(r*2)+', 255,'+(c)+' )';
pen.fillRect( c, r, h, v );
}
}
} // end of init()
function draw() {
alert( 'ouch!' );
}
</script>
<style>
body { background:#f0f8ff; }
.wash {
position:absolute; top:10; left:10;
height:128px; width:256px;
background:#ffffff;
}
</style>
</head>
<body onload=init()>
<canvas id=wash class=wash onclick=draw()get a browser that supports
<canvas</canvas>
</body>
</html>
<! end of wash.html>
