為了更好得掌握transform的精髓，所以決定完成三維立方體的模型，可以實(shí)現(xiàn)360無(wú)死角的三維旋轉(zhuǎn)效果。
但是旋轉(zhuǎn)時(shí)判斷每個(gè)面的視圖順序比較困難，仍未完美解決，希望有人能解答！
源碼直接貢獻(xiàn)啦：
代碼如下:
<style>
.cuboid_side_div{
position:absolute;
border:1px solid #333;
-webkit-transition:ease all 1s;
}
</style>
<script>
/**
* 本版本存在以下問(wèn)題：
* 三維旋轉(zhuǎn)的zIndex計(jì)算有問(wèn)題
* 還欠缺多種模型，常見(jiàn)的包括：線、面、椎體、球體、橢球體等。
*/
function cuboidModel(left_init,top_init,long_init,width_init,height_init)
{
////////////////////////////////////////
//初始化私有變量
///////////////////////////////////////
//初始化長(zhǎng)方體位置、大小
var left = left_init;
var top = top_init;
var long = long_init;
var width = width_init;
var height = height_init;
//初始化變換角度，默認(rèn)為0
var rotateX = 0;
var rotateY = 0;
var rotateZ = 0;
var zIndex = 0;
//定義長(zhǎng)方體六個(gè)面的div對(duì)象
var div_front;
var div_behind;
var div_left;
var div_right;
var div_top;
var div_bottom;
////////////////////////////////////////
//初始化長(zhǎng)方體
///////////////////////////////////////
//根據(jù)初始位置構(gòu)造六個(gè)面。
this.init = function() {
//創(chuàng)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);
//創(chuàng)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);
//創(chuàng)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);
//創(chuàng)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);
//創(chuàng)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);
//創(chuàng)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();
};
//重繪
this.refresh = function()
{
//定義div_front樣式
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";
//定義div_behind樣式
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";
//定義div_left樣式
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";
//定義div_right樣式
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";
//定義div_top樣式
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";
//定義div_bottom樣式
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);
};
//旋轉(zhuǎn)立方體
this.rotate = function(x,y,z) {
rotateX = x;
rotateY = y;
rotateZ = z;
var rotateX_front = rotateX;
var rotateY_front = rotateY;
var rotateZ_front = rotateZ;
//判斷各個(gè)面旋轉(zhuǎn)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);
//判斷各個(gè)面的z軸顯示順序
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";
//計(jì)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)) {
}
//賦值z(mì)Index
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;
};
//重置長(zhǎng)方體的長(zhǎng)、寬、高
this.resize = function(new_long, new_width, new_height)
{
long = new_long;
width = new_width;
height = new_height;
this.refresh();
};
//重置長(zhǎng)方體的位置
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>
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="確定" 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>