为了更好得掌握transform的精髓,所以决定完成三维立方体的模型,可以实现360无死角的三维旋转效果。
但是旋转时判断每个面的视图顺序比较困难,仍未完美解决,希望有人能解答!
源码直接贡献啦:
<style>
.cuboid_side_div{
position:absolute;
border:1px solid #333;
-webkit-transition:ease all 1s;
}
</style>
<script>
/**
* 本版本存在以下问题:
* 三维旋转的zIndex计算有问题
* 还欠缺多种模型,常见的包括:线、面、椎体、球体、椭球体等。
*/
function cuboidModel(left_init,top_init,long_init,width_init,height_init)
{
////////////////////////////////////////
//初始化私有变量
///////////////////////////////////////
//初始化长方体位置、大小
var left = left_init;
var top = top_init;
var long = long_init;
var width = width_init;
var height = height_init;
//初始化变换角度,默认为0
var rotateX = 0;
var rotateY = 0;
var rotateZ = 0;
var zIndex = 0;
//定义长方体六个面的div对象
var div_front;
var div_behind;
var div_left;
var div_right;
var div_top;
var div_bottom;
////////////////////////////////////////
//初始化长方体
///////////////////////////////////////
//根据初始位置构造六个面。
this.init = function() {
//创建front div
div_front = document.createElement(\"div\");
div_front.className = \"cuboid_side_div\";
div_front.innerHTML = \"div front\";
div_front.style.backgroundColor=\"#f1b2b2\";
document.body.appendChild(div_front);
//创建behind div
div_behind = document.createElement(\"div\");
div_behind.className = \"cuboid_side_div\";
div_behind.innerHTML = \"div behind\";
div_behind.style.backgroundColor=\"#bd91eb\";
document.body.appendChild(div_behind);
//创建left div
div_left = document.createElement(\"div\");
div_left.className = \"cuboid_side_div\";
div_left.innerHTML = \"div left\";
div_left.style.backgroundColor=\"#64a3c3\";
document.body.appendChild(div_left);
//创建right div
div_right = document.createElement(\"div\");
div_right.className = \"cuboid_side_div\";
div_right.innerHTML = \"div right\";
div_right.style.backgroundColor=\"#78e797\";
document.body.appendChild(div_right);
//创建top div
div_top = document.createElement(\"div\");
div_top.className = \"cuboid_side_div\";
div_top.innerHTML = \"div top\";
div_top.style.backgroundColor=\"#e7db78\";
document.body.appendChild(div_top);
//创建bottom div
div_bottom = document.createElement(\"div\");
div_bottom.className = \"cuboid_side_div\";
div_bottom.innerHTML = \"div bottom\";
div_bottom.style.backgroundColor=\"#e79c78\";
document.body.appendChild(div_bottom);
this.refresh();
};
//重绘
this.refresh = function()
{
//定义div_front样式
div_front.style.left = left+\"px\";
div_front.style.top = top+\"px\";
div_front.style.width = long +\"px\";
div_front.style.height = height +\"px\";
div_front.style.webkitTransformOrigin = \"50% 50% \"+((-1)*width / 2)+\"px\";
//定义div_behind样式
div_behind.style.left = left+\"px\";
div_behind.style.top = top+\"px\";
div_behind.style.width = div_front.style.width;
div_behind.style.height = div_front.style.height;
div_behind.style.webkitTransformOrigin = \"50% 50% \"+((-1)*width / 2)+\"px\";
//定义div_left样式
div_left.style.left = left+((long - height) / 2)+\"px\";
div_left.style.top = top + ((height - width) / 2)+\"px\";
div_left.style.width = height +\"px\";
div_left.style.height = width +\"px\";
div_left.style.webkitTransformOrigin = \"50% 50% \"+((-1) * long /2 )+\"px\";
//定义div_right样式
div_right.style.left = div_left.style.left;
div_right.style.top = div_left.style.top;
div_right.style.width = div_left.style.width;
div_right.style.height = div_left.style.height;
div_right.style.webkitTransformOrigin = \"50% 50% \"+((-1) * long /2 )+\"px\";
//定义div_top样式
div_top.style.left = left+\"px\";
div_top.style.top = top+((height - width)/ 2)+\"px\";
div_top.style.width = long +\"px\";
div_top.style.height = width +\"px\";
div_top.style.webkitTransformOrigin = \"50% 50% \"+((-1) * height /2 )+\"px\";
//定义div_bottom样式
div_bottom.style.left = div_top.style.left;
div_bottom.style.top = div_top.style.top;
div_bottom.style.width = div_top.style.width;
div_bottom.style.height = div_top.style.height;
div_bottom.style.webkitTransformOrigin = \"50% 50% \"+((-1) * height /2 )+\"px\";
this.rotate(rotateX,rotateY,rotateZ);
};
//旋转立方体
this.rotate = function(x,y,z) {
rotateX = x;
rotateY = y;
rotateZ = z;
var rotateX_front = rotateX;
var rotateY_front = rotateY;
var rotateZ_front = rotateZ;
//判断各个面旋转角度
var rotateX_behind = rotateX_front+180;
var rotateY_behind = rotateY_front * (-1);
var rotateZ_behind = rotateZ_front * (-1);
var rotateX_top = rotateX_front+90;
var rotateY_top = rotateZ_front;
var rotateZ_top = rotateY_front * (-1);
var rotateX_bottom = rotateX_front-90;
var rotateY_bottom = rotateZ_front * (-1);
var rotateZ_bottom = rotateY_front;
var rotateX_left = rotateX_front + 90;
var rotateY_left = rotateZ_front - 90;
var rotateZ_left = rotateY_front * (-1);
var rotateX_right = rotateX_front + 90;
var rotateY_right = rotateZ_front + 90;
var rotateZ_right = rotateY_front * (-1);
//判断各个面的z轴显示顺序
var zIndex_front_default = -1;
var zIndex_behind_default = -6;
var zIndex_top_default = -5;
var zIndex_bottom_default = -2;
var zIndex_left_default = -4;
var zIndex_right_default = -3;
var xI = (rotateX_front / 90) % 4;
var yI = (rotateY_front / 90) % 4;
var zI = (rotateZ_front / 90) % 4;
var zIndex_matrix = new Array();
for(var i = 0; i < 3;i++) {
zIndex_matrix.push(new Array());
}
zIndex_matrix = [[\"\",\"zIndex_top\",\"\"],
[\"zIndex_left\",\"zIndex_front\",\"zIndex_right\"],
[\"\",\"zIndex_bottom\",\"\"]];
var zIndex_matrix_behind = \"zIndex_behind\";
//计算zIndex
if((xI >= 0 && xI < 1) ||(xI >= -4 && xI < -3)) {
} else if((xI >= 1 && xI < 2) ||(xI >= -3 && xI < -2)) {
var zIndex_matrix_tmp = zIndex_matrix[0][1];
zIndex_matrix[0][1] = zIndex_matrix[1][1];
zIndex_matrix[1][1] = zIndex_matrix[1][2];
zIndex_matrix[1][2] = zIndex_matrix_behind;
zIndex_matrix_behind = zIndex_matrix_tmp;
} else if((xI >= 2 && xI < 3) ||(xI >= -2 && xI < -1)) {
var zIndex_matrix_tmp = zIndex_matrix[0][1];
zIndex_matrix[0][1] = zIndex_matrix[2][1];
zIndex_matrix[2][1] = zIndex_matrix_tmp;
zIndex_matrix_tmp = zIndex_matrix[1][1];
zIndex_matrix[1][1] = zIndex_matrix_behind;
zIndex_matrix_behind = zIndex_matrix_tmp;
} else if((xI >= 3 && xI < 4) ||(xI >= -1 && xI < 0)) {
var zIndex_matrix_tmp = zIndex_matrix[0][1];
zIndex_matrix[0][1] = zIndex_matrix_behind;
zIndex_matrix_behind = zIndex_matrix[2][1];
zIndex_matrix[2][1] = zIndex_matrix[1][1];
zIndex_matrix[1][1] = zIndex_matrix_tmp;
}
if((yI > 0 && yI <= 1) ||(yI > -4 && yI <= -3)) {
var zIndex_matrix_tmp = zIndex_matrix[1][0];
zIndex_matrix[1][0] = zIndex_matrix_behind;
zIndex_matrix_behind = zIndex_matrix[1][2];
zIndex_matrix[1][2] = zIndex_matrix[1][1];
zIndex_matrix[1][1] = zIndex_matrix_tmp;
} else if((yI > 1 && yI <= 2) ||(yI > -3 && yI <= -2)) {
var zIndex_matrix_tmp = zIndex_matrix[1][0];
zIndex_matrix[1][0] = zIndex_matrix[1][2];
zIndex_matrix[1][2] = zIndex_matrix_tmp;
zIndex_matrix_tmp = zIndex_matrix[1][1];
zIndex_matrix[1][1] = zIndex_matrix_behind;
zIndex_matrix_behind = zIndex_matrix_tmp;
} else if((yI > 2 && yI <= 3) ||(yI > -2 && yI <= -1)) {
var zIndex_matrix_tmp = zIndex_matrix[1][0];
zIndex_matrix[1][0] = zIndex_matrix[1][1];
zIndex_matrix[1][1] = zIndex_matrix[1][2];
zIndex_matrix[1][2] = zIndex_matrix_behind;
zIndex_matrix_behind = zIndex_matrix_tmp;
} else if((yI > 3 && yI <= 4) ||(yI > -1 && yI <= 0)) {
}
if((zI > 0 && zI <= 1) ||(zI > -4 && zI <= -3)) {
var zIndex_matrix_tmp = zIndex_matrix[0][1];
zIndex_matrix[0][1] = zIndex_matrix[1][0];
zIndex_matrix[1][0] = zIndex_matrix[2][1];
zIndex_matrix[2][1] = zIndex_matrix[1][2];
zIndex_matrix[1][2] = zIndex_matrix_tmp;
} else if((zI > 1 && zI <= 2) ||(zI > -3 && zI <= -2)) {
var zIndex_matrix_tmp = zIndex_matrix[0][1];
zIndex_matrix[0][1] = zIndex_matrix[2][1];
zIndex_matrix[2][1] = zIndex_matrix_tmp;
zIndex_matrix_tmp = zIndex_matrix[1][0];
zIndex_matrix[1][0] = zIndex_matrix[1][2];
zIndex_matrix[1][2] = zIndex_matrix_tmp;
} else if((zI > 2 && zI <= 3) ||(zI > -2 && zI <= -1)) {
var zIndex_matrix_tmp = zIndex_matrix[0][1];
zIndex_matrix[0][1] = zIndex_matrix[1][2];
zIndex_matrix[1][2] = zIndex_matrix[2][1];
zIndex_matrix[2][1] = zIndex_matrix[1][0];
zIndex_matrix[1][0] = zIndex_matrix_tmp;
} else if((zI > 3 && zI <= 4) ||(zI > -1 && zI <= 0)) {
}
//赋值zIndex
eval(zIndex_matrix[0][1]+\"=\"+zIndex_top_default);
eval(zIndex_matrix[1][0]+\"=\"+zIndex_left_default);
eval(zIndex_matrix[1][1]+\"=\"+zIndex_front_default);
eval(zIndex_matrix[1][2]+\"=\"+zIndex_right_default);
eval(zIndex_matrix[2][1]+\"=\"+zIndex_bottom_default);
eval(zIndex_matrix_behind+\"=\"+zIndex_behind_default);
//front
var transform_rotate_front = \"perspective(500px) rotateX(\"+rotateX_front+
\"deg) rotateY(\"+rotateY_front+
\"deg) rotateZ(\"+rotateZ_front+\"deg)\";
div_front.style.webkitTransform = transform_rotate_front;
div_front.style.zIndex = zIndex_front;
//behind
var transform_rotate_behind = \"perspective(500px) rotateX(\"+rotateX_behind+
\"deg) rotateY(\"+rotateY_behind+
\"deg) rotateZ(\"+rotateZ_behind+\"deg)\";
div_behind.style.webkitTransform = transform_rotate_behind;
div_behind.style.zIndex = zIndex_behind;
//left
var transform_rotate_left = \"perspective(500px) rotateX(\"+rotateX_left+
\"deg) rotateZ(\"+rotateZ_left+
\"deg) rotateY(\"+rotateY_left+\"deg)\";
div_left.style.webkitTransform = transform_rotate_left;
div_left.style.zIndex = zIndex_left;
//right
var transform_rotate_right = \"perspective(500px) rotateX(\"+rotateX_right+
\"deg) rotateZ(\"+rotateZ_right+
\"deg) rotateY(\"+rotateY_right+\"deg)\";
div_right.style.webkitTransform = transform_rotate_right;
div_right.style.zIndex = zIndex_right;
//top
var transform_rotate_top = \"perspective(500px) rotateX(\"+rotateX_top+
\"deg) rotateZ(\"+rotateZ_top+
\"deg) rotateY(\"+rotateY_top+\"deg)\";
div_top.style.webkitTransform = transform_rotate_top;
div_top.style.zIndex = zIndex_top;
//bottom
var transform_rotate_bottom = \"perspective(500px) rotateX(\"+rotateX_bottom+
\"deg) rotateZ(\"+rotateZ_bottom+
\"deg) rotateY(\"+rotateY_bottom+\"deg)\";
div_bottom.style.webkitTransform = transform_rotate_bottom;
div_bottom.style.zIndex = zIndex_bottom;
};
//重置长方体的长、宽、高
this.resize = function(new_long, new_width, new_height)
{
long = new_long;
width = new_width;
height = new_height;
this.refresh();
};
//重置长方体的位置
this.move = function(new_left,new_top) {
top = new_top;
left = new_left;
this.refresh();
};
}
function transform() {
cuboid.resize(parseInt(document.getElementById(\"long\").value),
parseInt(document.getElementById(\"width\").value),
parseInt(document.getElementById(\"height\").value));
cuboid.move(parseInt(document.getElementById(\"left\").value),
parseInt(document.getElementById(\"top\").value));
cuboid.rotate(parseInt(document.getElementById(\"rotatex\").value),
parseInt(document.getElementById(\"rotatey\").value),
parseInt(document.getElementById(\"rotatez\").value));
//cuboid.refresh();
}
</script>
<div style=\"position:absolute;border:1px solid #333;top:240px;left:100px;width:1000px;height: 360px;\">
left:<input id=\"left\" value=\"100\"></input>px
top:<input id=\"top\" value=\"50\"></input>px
long:<input id=\"long\" value=\"100\"></input>px
width:<input id=\"width\" value=\"60\"></input>px
height:<input id=\"height\" value=\"80\"></input>px
rotateX: <input id=\"rotatex\" value=\"0\"></input>deg
rotateY: <input id=\"rotatey\" value=\"0\"></input>deg
rotateZ: <input id=\"rotatez\" value=\"0\"></input>deg
<input type=\"button\" value=\"确定\" onclick=\"transform()\"></input>
<label id=\"status\"></label>
</div>
<script>
var cuboid = new cuboidModel(parseInt(document.getElementById(\"left\").value),
parseInt(document.getElementById(\"top\").value),
parseInt(document.getElementById(\"long\").value),
parseInt(document.getElementById(\"width\").value),
parseInt(document.getElementById(\"height\").value));
cuboid.init();
</script>