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 <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>