在matrix3d上获得缩放(x,y,z)和旋转(x,y,z)的方法是通过使用CSS3的transform属性来实现。transform属性可以对元素进行旋转、缩放、倾斜或平移等变换操作。
要在matrix3d上获得缩放(x,y,z)和旋转(x,y,z),可以使用以下步骤:
以下是一个示例代码,演示如何在matrix3d上获得缩放(x,y,z)和旋转(x,y,z):
<style>
.box {
width: 100px;
height: 100px;
background-color: red;
transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
}
</style>
<div class="box"></div>
<script>
var scale = { x: 2, y: 2, z: 1 };
var rotation = { x: 45, y: 45, z: 45 };
var matrix = [
scale.x, 0, 0, 0,
0, scale.y, 0, 0,
0, 0, scale.z, 0,
0, 0, 0, 1
];
var radianX = rotation.x * Math.PI / 180;
var radianY = rotation.y * Math.PI / 180;
var radianZ = rotation.z * Math.PI / 180;
var rotationMatrixX = [
1, 0, 0, 0,
0, Math.cos(radianX), -Math.sin(radianX), 0,
0, Math.sin(radianX), Math.cos(radianX), 0,
0, 0, 0, 1
];
var rotationMatrixY = [
Math.cos(radianY), 0, Math.sin(radianY), 0,
0, 1, 0, 0,
-Math.sin(radianY), 0, Math.cos(radianY), 0,
0, 0, 0, 1
];
var rotationMatrixZ = [
Math.cos(radianZ), -Math.sin(radianZ), 0, 0,
Math.sin(radianZ), Math.cos(radianZ), 0, 0,
0, 0, 1, 0,
0, 0, 0, 1
];
matrix = multiplyMatrix(matrix, rotationMatrixX);
matrix = multiplyMatrix(matrix, rotationMatrixY);
matrix = multiplyMatrix(matrix, rotationMatrixZ);
var transformValue = 'matrix3d(' + matrix.join(',') + ')';
document.querySelector('.box').style.transform = transformValue;
function multiplyMatrix(a, b) {
var result = [];
for (var i = 0; i < 4; i++) {
for (var j = 0; j < 4; j++) {
var sum = 0;
for (var k = 0; k < 4; k++) {
sum += a[i * 4 + k] * b[k * 4 + j];
}
result.push(sum);
}
}
return result;
}
</script>
这段代码将一个具有红色背景的正方形元素进行了缩放和旋转操作。缩放因子为2,旋转角度为45度。通过计算变换矩阵并将其应用于元素的transform属性,实现了在matrix3d上获得缩放(x,y,z)和旋转(x,y,z)的效果。
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