HTML5 transform three-dimensional cube achieves 360-degree three-dimensional rotation effect without dead ends_html5 tutorial skills

In order to better grasp the essence of transform, we decided to complete a three-dimensional cube model, which can achieve a 360-degree three-dimensional rotation effect without dead ends.

However, it is difficult to determine the view order of each face when rotating, and it is not yet perfectly solved. I hope someone can answer it!

The source code is contributed directly:

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The code is as follows:

<script> <br>/**<br>* This version has the following problems: <br>* There is a problem with the zIndex calculation of three-dimensional rotation <br>* It also lacks a variety of models, common ones include: lines, surfaces, cones, spheres, ellipsoids, etc. <br>*/ <br>function cuboidModel(left_init,top_init,long_init,width_init,height_init) <br>{ <br>// //////////////////////////////////////// <br>//Initialize private variables<br>/ //////////////////////////////////////// <br>//Initialize the cuboid position and size<br>var left = left_init; <br>var top = top_init; <br>var long = long_init; <br>var width = width_init; <br>var height = height_init; <br>//Initialize the transformation angle, the default is 0 <br>var rotateX = 0; <br>var rotateY = 0; <br>var rotateZ = 0; <br>var zIndex = 0; <br>//Div object that defines the six sides of the cuboid <br>var div_front ; <br>var div_behind; <br>var div_left; <br>var div_right; <br>var div_top; <br>var div_bottom; <br><br>///////////// //////////////////////////// <br>//Initialize cuboid<br>///////////// //////////////////////////// <br>//Construct six faces based on the initial position. <br>this.init = function() { <br>//Create front div <br>div_front = document.createElement("div"); <br>div_front.className = "cuboid_side_div"; <br>div_front.innerHTML = "div front"; <br>div_front.style.backgroundColor="#f1b2b2"; <br>document.body.appendChild(div_front); <br>//Create behind div <br>div_behind = document.createElement(" div"); <br>div_behind.className = "cuboid_side_div"; <br>div_behind.innerHTML = "div behind"; <br>div_behind.style.backgroundColor="#bd91eb"; <br>document.body.appendChild( div_behind); <br>//Create left div <br>div_left = document.createElement("div"); <br>div_left.className = "cuboid_side_div"; <br>div_left.innerHTML = "div left"; <br>div_left.style.backgroundColor="#64a3c3"; <br>document.body.appendChild(div_left); <br>//Create right div <br>div_right = document.createElement("div"); <br>div_right .className = "cuboid_side_div"; <br>div_right.innerHTML = "div right"; <br>div_right.style.backgroundColor="#78e797"; <br>document.body.appendChild(div_right); <br>// Create top div <br>div_top = document.createElement("div"); <br>div_top.className = "cuboid_side_div"; <br>div_top.innerHTML = "div top"; <br>div_top.style.backgroundColor=" #e7db78"; <br>document.body.appendChild(div_top); <br>//Create bottom div <br>div_bottom = document.createElement("div"); <br>div_bottom.className = "cuboid_side_div"; <br>div_bottom.innerHTML = "div bottom"; <br>div_bottom.style.backgroundColor="#e79c78"; <br>document.body.appendChild(div_bottom); <br>this.refresh(); <br>} ; <br>//Redraw<br>this.refresh = function() <br>{ <br>//Define div_front style <br>div_front.style.left = left "px"; <br>div_front.style .top = top "px"; <br>div_front.style.width = long "px"; <br>div_front.style.height = height "px"; <br>div_front.style.webkitTransformOrigin = "50% 50% " ((-1)*width / 2) "px"; <br>//Define div_behind style<br>div_behind.style.left = left "px"; <br>div_behind.style.top = top "px" ; <br>div_behind.style.width = div_front.style.width; <br>div_behind.style.height = div_front.style.height; <br>div_behind.style.webkitTransformOrigin = "50% 50% " ((-1 )*width / 2) "px"; <br>//Define div_left style <br>div_left.style.left = left ((long - height) / 2) "px"; <br>div_left.style.top = top ((height - width) / 2) "px"; <br>div_left.style.width = height "px"; <br>div_left.style.height = width "px"; <br>div_left.style.webkitTransformOrigin = "50% 50% " ((-1) * long /2 ) "px"; <br>//Define div_right style<br>div_right.style.left = div_left.style.left; <br>div_right.style .top = div_left.style.top; <br>div_right.style.width = div_left.style.width; <br>div_right.style.height = div_left.style.height; <br>div_right.style.webkitTransformOrigin = "50 % 50% " ((-1) * long /2 ) "px"; <br>//Define div_top style<br>div_top.style.left = left "px"; <br>div_top.style.top = top ((height - width)/ 2) "px"; <br>div_top.style.width = long "px"; <br>div_top.style.height = width "px"; <br>div_top.style.webkitTransformOrigin = "50% 50% " ((-1) * height /2 ) "px"; <br>//Define div_bottom style <br>div_bottom.style.left = div_top.style.left; <br>div_bottom.style. top = div_top.style.top; <br>div_bottom.style.width = div_top.style.width; <br>div_bottom.style.height = div_top.style.height; <br>div_bottom.style.webkitTransformOrigin = "50% 50% " ((-1) * height /2 ) "px"; <br>this.rotate(rotateX,rotateY,rotateZ); <br>}; <br>//Rotate the cube<br>this.rotate = function(x,y,z) { <br>rotateX = x; <br>rotateY = y; <br>rotateZ = z; <br>var rotateX_front = rotateX; <br>var rotateY_front = rotateY; <br>var rotateZ_front = rotateZ; <br>//判断各个面旋转角度 <br>var rotateX_behind = rotateX_front 180; <br>var rotateY_behind = rotateY_front * (-1); <br>var rotateZ_behind = rotateZ_front * (-1); <br>var rotateX_top = rotateX_front 90; <br>var rotateY_top = rotateZ_front; <br>var rotateZ_top = rotateY_front * (-1); <br>var rotateX_bottom = rotateX_front-90; <br>var rotateY_bottom = rotateZ_front * (-1); <br>var rotateZ_bottom = rotateY_front; <br>var rotateX_left = rotateX_front 90; <br>var rotateY_left = rotateZ_front - 90; <br>var rotateZ_left = rotateY_front * (-1); <br>var rotateX_right = rotateX_front 90; <br>var rotateY_right = rotateZ_front 90; <br>var rotateZ_right = rotateY_front * (-1); <br>//判断各个面的z轴显示顺序 <br>var zIndex_front_default = -1; <br>var zIndex_behind_default = -6; <br>var zIndex_top_default = -5; <br>var zIndex_bottom_default = -2; <br>var zIndex_left_default = -4; <br>var zIndex_right_default = -3; <br>var xI = (rotateX_front / 90) % 4; <br>var yI = (rotateY_front / 90) % 4; <br>var zI = (rotateZ_front / 90) % 4; <br>var zIndex_matrix = new Array(); <br>for(var i = 0; i < 3;i ) { <br />zIndex_matrix.push(new Array()); <br />} <br />zIndex_matrix = [["","zIndex_top",""], <br />["zIndex_left","zIndex_front","zIndex_right"], <br />["","zIndex_bottom",""]]; <br />var zIndex_matrix_behind = "zIndex_behind"; <br />//计算zIndex <br />if((xI >= 0 && xI < 1) ||(xI >= -4 && xI < -3)) { <br />} else if((xI >= 1 && xI < 2) ||(xI >= -3 && xI < -2)) { <br />var zIndex_matrix_tmp = zIndex_matrix[0][1]; <br />zIndex_matrix[0][1] = zIndex_matrix[1][1]; <br />zIndex_matrix[1][1] = zIndex_matrix[1][2]; <br />zIndex_matrix[1][2] = zIndex_matrix_behind; <br />zIndex_matrix_behind = zIndex_matrix_tmp; <br />} else if((xI >= 2 && xI < 3) ||(xI >= -2 && xI < -1)) { <br />var zIndex_matrix_tmp = zIndex_matrix[0][1]; <br />zIndex_matrix[0][1] = zIndex_matrix[2][1]; <br />zIndex_matrix[2][1] = zIndex_matrix_tmp; <br />zIndex_matrix_tmp = zIndex_matrix[1][1]; <br />zIndex_matrix[1][1] = zIndex_matrix_behind; <br />zIndex_matrix_behind = zIndex_matrix_tmp; <br />} else if((xI >= 3 && xI < 4) ||(xI >= -1 && xI < 0)) { <br />var zIndex_matrix_tmp = zIndex_matrix[0][1]; <br />zIndex_matrix[0][1] = zIndex_matrix_behind; <br />zIndex_matrix_behind = zIndex_matrix[2][1]; <br />zIndex_matrix[2][1] = zIndex_matrix[1][1]; <br />zIndex_matrix[1][1] = zIndex_matrix_tmp; <br />} <br />if((yI > 0 && yI <= 1) ||(yI > -4 && yI <= -3)) { <br />var zIndex_matrix_tmp = zIndex_matrix[1][0]; <br />zIndex_matrix[1][0] = zIndex_matrix_behind; <br />zIndex_matrix_behind = zIndex_matrix[1][2]; <br />zIndex_matrix[1][2] = zIndex_matrix[1][1]; <br />zIndex_matrix[1][1] = zIndex_matrix_tmp; <br />} else if((yI > 1 && yI <= 2) ||(yI > -3 && yI <= -2)) { <br />var zIndex_matrix_tmp = zIndex_matrix[1][0]; <br />zIndex_matrix[1][0] = zIndex_matrix[1][2]; <br />zIndex_matrix[1][2] = zIndex_matrix_tmp; <br />zIndex_matrix_tmp = zIndex_matrix[1][1]; <br />zIndex_matrix[1][1] = zIndex_matrix_behind; <br />zIndex_matrix_behind = zIndex_matrix_tmp; <br />} else if((yI > 2 && yI <= 3) ||(yI > -2 && yI <= -1)) { <br />var zIndex_matrix_tmp = zIndex_matrix[1][0]; <br />zIndex_matrix[1][0] = zIndex_matrix[1][1]; <br />zIndex_matrix[1][1] = zIndex_matrix[1][2]; <br />zIndex_matrix[1][2] = zIndex_matrix_behind; <br />zIndex_matrix_behind = zIndex_matrix_tmp; <br />} else if((yI > 3 && yI <= 4) ||(yI > -1 && yI <= 0)) { <br />} <br /><br />if((zI > 0 && zI <= 1) ||(zI > -4 && zI <= -3)) { <br />var zIndex_matrix_tmp = zIndex_matrix[0][1]; <br />zIndex_matrix[0][1] = zIndex_matrix[1][0]; <br />zIndex_matrix[1][0] = zIndex_matrix[2][1]; <br />zIndex_matrix[2][1] = zIndex_matrix[1][2]; <br />zIndex_matrix[1][2] = zIndex_matrix_tmp; <br />} else if((zI > 1 && zI <= 2) ||(zI > -3 && zI <= -2)) { <br />var zIndex_matrix_tmp = zIndex_matrix[0][1]; <br />zIndex_matrix[0][1] = zIndex_matrix[2][1]; <br />zIndex_matrix[2][1] = zIndex_matrix_tmp; <br />zIndex_matrix_tmp = zIndex_matrix[1][0]; <br />zIndex_matrix[1][0] = zIndex_matrix[1][2]; <br />zIndex_matrix[1][2] = zIndex_matrix_tmp; <br />} else if((zI > 2 && zI <= 3) ||(zI > -2 && zI <= -1)) { <br />var zIndex_matrix_tmp = zIndex_matrix[0][1]; <br />zIndex_matrix[0][1] = zIndex_matrix[1][2]; <br />zIndex_matrix[1][2] = zIndex_matrix[2][1]; <br />zIndex_matrix[2][1] = zIndex_matrix[1][0]; <br />zIndex_matrix[1][0] = zIndex_matrix_tmp; <br />} else if((zI > 3 && zI <= 4) ||(zI > -1 && zI <= 0)) { <br />} <br />//赋值zIndex <br />eval(zIndex_matrix[0][1] "=" zIndex_top_default); <br />eval(zIndex_matrix[1][0] "=" zIndex_left_default); <br />eval(zIndex_matrix[1][1] "=" zIndex_front_default); <br />eval(zIndex_matrix[1][2] "=" zIndex_right_default); <br />eval(zIndex_matrix[2][1] "=" zIndex_bottom_default); <br />eval(zIndex_matrix_behind "=" zIndex_behind_default); <br />//front <br />var transform_rotate_front = "perspective(500px) rotateX(" rotateX_front <br />"deg) rotateY(" rotateY_front <br />"deg) rotateZ(" rotateZ_front "deg)"; <br />div_front.style.webkitTransform = transform_rotate_front; <br />div_front.style.zIndex = zIndex_front; <br />//behind <br />var transform_rotate_behind = "perspective(500px) rotateX(" rotateX_behind <br />"deg) rotateY(" rotateY_behind <br />"deg) rotateZ(" rotateZ_behind "deg)"; <br />div_behind.style.webkitTransform = transform_rotate_behind; <br />div_behind.style.zIndex = zIndex_behind; <br />//left <br />var transform_rotate_left = "perspective(500px) rotateX(" rotateX_left <br />"deg) rotateZ(" rotateZ_left <br />"deg) rotateY(" rotateY_left "deg)"; <br />div_left.style.webkitTransform = transform_rotate_left; <br />div_left.style.zIndex = zIndex_left; <br />//right <br />var transform_rotate_right = "perspective(500px) rotateX(" rotateX_right <br />"deg) rotateZ(" rotateZ_right <br />"deg) rotateY(" rotateY_right "deg)"; <br />div_right.style.webkitTransform = transform_rotate_right; <br />div_right.style.zIndex = zIndex_right; <br />//top <br />var transform_rotate_top = "perspective(500px) rotateX(" rotateX_top <br />"deg) rotateZ(" rotateZ_top <br />"deg) rotateY(" rotateY_top "deg)"; <br />div_top.style.webkitTransform = transform_rotate_top; <br />div_top.style.zIndex = zIndex_top; <br />//bottom <br />var transform_rotate_bottom = "perspective(500px) rotateX(" rotateX_bottom <br />"deg) rotateZ(" rotateZ_bottom <br />"deg) rotateY(" rotateY_bottom "deg)"; <br />div_bottom.style.webkitTransform = transform_rotate_bottom; <br />div_bottom.style.zIndex = zIndex_bottom; <br />}; <br />//重置长方体的长、宽、高 <br />this.resize = function(new_long, new_width, new_height) <br />{ <br />long = new_long; <br />width = new_width; <br />height = new_height; <br />this.refresh(); <br />}; <br />//重置长方体的位置 <br />this.move = function(new_left,new_top) { <br />top = new_top; <br />left = new_left; <br />this.refresh(); <br />}; <br />} <br /><br />function transform() { <br />cuboid.resize(parseInt(document.getElementById("long").value), <br />parseInt(document.getElementById("width").value), <br />parseInt(document.getElementById("height").value)); <br />cuboid.move(parseInt(document.getElementById("left").value), <br />parseInt(document.getElementById("top").value)); <br />cuboid.rotate(parseInt(document.getElementById("rotatex").value), <br />parseInt(document.getElementById("rotatey").value), <br />parseInt(document.getElementById("rotatez").value)); <br />//cuboid.refresh(); <br />} <br /></script>

left:px

top:px

long:px

width:px

height:px

rotateX: deg

rotateY: deg

rotateZ: deg

<script> <br>var cuboid = new cuboidModel(parseInt(document.getElementById("left").value), <br>parseInt(document.getElementById("top").value), <br>parseInt(document.getElementById("long").value), <br>parseInt(document.getElementById("width").value), <br>parseInt(document.getElementById("height").value)); <br>cuboid.init(); <br></script>