HTML5 の 3 次元立方体変換により、行き止まりのない 360 度の 3 次元回転効果が実現_html5 チュートリアル スキル

変換の本質をよりよく理解するために、行き止まりのない 360 度の 3 次元回転効果を実現できる 3 次元立方体モデルを完成させることにしました。

ただし、回転時の各面の表示順序を決定するのは難しく、まだ完全には解決されていません。誰かが答えてくれることを願っています。

ソース コードは直接提供されます:

コードをコピーします

コードは次のとおりです:

<script> <br>/**<br>* このバージョンには次の問題があります: <br>* 3 次元回転の zIndex 計算に問題があります <br>* また、さまざまなモデルが欠如しています。一般的なモデルには、線、曲面、円錐、球、楕円体など。 <br>*/ <br>function cuboidModel(left_init,top_init,long_init,width_init,height_init) <br>{ <br>// /////////////////////////////////////// <br>//プライベート変数を初期化する<br>/ /////////////////////////////////////// <br>//直方体を初期化する位置とサイズ<br>var left = left_init; <br>var length = width_init; <br>var height = height_init;変換角度、デフォルトは 0 です。 <br>varrotateX = 0; <br>var zIndex = 0;直方体の側面 <br>var div_behind; <br>var div_top; <br><br> ///////// /////////////////////////// <br>//直方体を初期化<br>/// ////////// /////////////////////////// <br>//初期値に基づいて 6 つの面を構築します位置。 <br>this.init = function() { <br>// フロント div を作成します <br>div_front = document.createElement("div"); <br>div_front.className = "cuboid_side_div"; = "divfront"; <br>div_front.style.backgroundColor="#f1b2b2"; <br>document.body.appendChild(div_front); <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>// 左 div を作成します <br>div_left = document.createElement("div"); <br>div_left.innerHTML = "div left"; >div_left.style.backgroundColor="#64a3c3"; <br>document.body.appendChild(div_left); <br>div_right = document.createElement("div"); .className = "cuboid_side_div"; <br>div_right.innerHTML = "div right"; <br>document.body.appendChild(div_right);トップ div を作成します <br>div_top = document.createElement("div"); <br>div_top.className = "cuboid_side_div"; <br>div_top.style.backgroundColor=" #e7db78"; <br>document.body.appendChild(div_top); <br>//ボトム div を作成 <br>div_bottom = document.createElement("div"); <br>div_bottom.className = "cuboid_side_div"; <br>div_bottom.innerHTML = "divbottom"; <br>div_bottom.style.backgroundColor="#e79c78"; <br>document.body.appendChild(div_bottom) <br>} ; <br>//再描画<br>this.refresh = function() <br>{ <br>//div_front スタイルを定義します <br>div_front.style.left = left "px";トップ = トップ "px"; <br>div_front.style.width = 長さ "px"; <br>div_front.style.webkitTransformOrigin = "50% 50%" ((-1)*width / 2) "px"; <br>//div_behind スタイルを定義します<br>div_behind.style.left = left "px"; <br>div_behind.style.top = トップ "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>//div_left スタイルを定義します <br>div_left.style.left = left ((long - height) / 2) "px"; ((高さ - 幅) / 2) "px"; <br>div_left.style.width = 高さ "px"; <br>div_left.style.height = 幅 "px"; "50% 50% " ((-1) * long /2 ) "px"; <br>// div_right スタイルを定義します<br>div_right.style.left = div_left.style.left;トップ = 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>//div_top スタイルを定義<br>div_top.style.left = left "px"; <br>div_top.style.top = top ( (高さ - 幅)/ 2) "px"; <br>div_top.style.width = long "px"; <br>div_top.style.webkitTransformOrigin = " 50% 50% " ((-1) * height /2 ) "px"; <br>// div_bottom スタイルを定義 <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>//立方体を回転します<br>this.rotate = function(x,y,z) { <br>rotateX = x; <br>rotateZ = z; <br>varrotateX_front = <br>var 回転Y_フロント = 回転Y; <br>varrotateZ_front =rotateZ; <br>// 各面回転角度を判断 <br>varrotateX_behind =rotateX_front 180; <br>varrotateY_behind =rotateY_front * (-1); <br>varrotateZ_behind =rotateZ_front * (-1); <br>varrotateX_top =rotateX_front 90; <br>varrotateY_top =rotateZ_front; <br>varrotateZ_top =rotateY_front * (-1); <br>varrotateX_bottom =rotateX_front-90; <br>varrotateY_bottom =rotateZ_front * (-1); <br>varrotateZ_bottom =rotateY_front; <br>varrotateX_left =rotateX_front 90; <br>varrotateY_left =rotateZ_front - 90; <br>varrotateZ_left =rotateY_front * (-1); <br>varrotateX_right =rotateX_front 90; <br>varrotateY_right =rotateZ_front 90; <br>varrotateZ_right =rotateY_front * (-1); <br>// 各面のz轴表示顺序を判断 <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 = 新しい Array(); <br>for(var i = 0; i 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 = -4 && xI } else if(( xI >= 1 && xI = -3 && xI 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 = -2 && xI 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 = -1 && xI 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 -4 && yI 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 -3 && yI 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 -2 && yI 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 -1 && yI } <br><br>if((zI > 0 && zI -4 && zI 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 -3 && zI 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 -2 && zI 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>