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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Transform Origin Test</title>
<script src="./lib/config.js"></script>
<script src="../dist/zrender.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=1" />
</head>
<body>
<style>
#css-baseline-container, #main-canvas {
position: absolute;
left: 0;
top: 0;
width: 1800px;
height: 1200px;
}
#css-baseline-container>div {
position: absolute;
border: 2px solid red;
box-sizing: border-box;
}
#description {
position: absolute;
left: 10px;
top: 10px;
}
</style>
<div id="css-baseline-container"></div>
<div id="main-canvas"></div>
<i id="description">Dashed box: without transform. Gray box with transform. Red box: CSS transform as baseline. </i>
<script type="text/javascript">
var zr = zrender.init(document.getElementById('main-canvas'));
var viewWidth = zr.getWidth();
var viewHeight = zr.getHeight();
var elSize = 70;
var cellSize = elSize * 2 + 5;
var origins = [
[0, 0],
[0.5, 0.5],
[1, 1]
];
var rotations = [
0, 90, 180
];
var scales = [
[1, 1],
[0.8, 0.8]
];
var skews = [
[0, 0],
[10, 0],
[-10, 0],
[0, 10],
[0, -10],
];
var DEG_TO_RAD = Math.PI / 180;
var columnCount = Math.floor(viewWidth / cellSize);
var idx = 0;
var offsetX = 50;
var offsetY = 50;
var group = new zrender.Group({
x: offsetX,
y: offsetY
});
var baselineContainer = document.querySelector('#css-baseline-container');
for (var i = 0; i < origins.length; i++) {
var origin = origins[i];
for (var j = 0; j < rotations.length; j++) {
var rot = rotations[j];
for (var m = 0; m < scales.length; m++) {
var scale = scales[m];
for (var n = 0; n < skews.length; n++) {
var skew = skews[n];
var column = idx % columnCount;
var row = Math.floor(idx / columnCount);
var el = new zrender.Rect({
x: column * cellSize,
y: row * cellSize,
rotation: rot * DEG_TO_RAD,
scaleX: scale[0],
scaleY: scale[1],
// Percent.
originX: origin[0] * elSize,
originY: origin[1] * elSize,
skewX: skew[0] * DEG_TO_RAD,
skewY: skew[1] * DEG_TO_RAD,
shape: {
width: elSize,
height: elSize
},
style: {
// image: 'asset/test.png',
fill: 'rgba(0, 0, 0, 0.2)'
}
});
var border = new zrender.Rect({
shape: {
x: column * cellSize,
y: row * cellSize,
width: elSize,
height: elSize
},
style: {
fill: 'none',
stroke: '#000',
lineDash: 'dashed'
}
});
var text = new zrender.Text({
style: {
x: 3,
y: 3,
align: 'left',
verticalAlign: 'top',
text: [
`origin: [${origin.join(', ')}]`,
`rot: ${rot}deg`,
`scale: [${scale.join(', ')}]`,
`skew: [${skew.map(sk => sk + 'deg').join(', ')}]`,
].join('\n'),
fill: '#000',
stroke: '#fff',
lineHeight: 16,
lineWidth: 1
},
x: column * cellSize,
y: row * cellSize,
z: 1
});
var baselineBox = document.createElement('div');
baselineContainer.appendChild(baselineBox);
// rotation and skewY in zrender has different direction with CSS transform.
baselineBox.style.cssText = `
width: ${elSize}px;
height: ${elSize}px;
transform: translate(${offsetX + cellSize * column}px, ${offsetY + row * cellSize}px) rotate(${-rot}deg) skew(${skew[0]}deg, ${-skew[1]}deg) scale(${scale[0]}, ${scale[1]});
transform-origin: ${origin[0] * 100}% ${origin[1] * 100}%;
`
group.add(el);
group.add(border);
group.add(text);
idx++;
}
}
}
zr.add(group);
}
</script>
</body>
</html>
|
