一個用純AS寫的正態(tài)曲線畫法_Flash教程
      
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      推薦：用Flash 2004編寫簡單的運算類
      在Flash2004中新建一個ActionScript文檔，輸入下列的Action腳本//這個類是基本的運算類，通過屬性來引入數(shù)據(jù)接口，并且在類中異常拋出classoperationClass
      我的這段AS寫了不少有用的函數(shù),如畫按鈕函數(shù),畫坐標軸函數(shù),畫框架函數(shù).這些函數(shù)都有很強的移植性,以后都可以直接拿來用; 

//================按鈕和坐標軸上的文字=====================//
      mytxt = ["開始", "暫停", "清除", "全屏", "退出", "繼續(xù)"];
      myNum = ["-30", "-20", "-10", "0", "10", "20", "30", "X", "Y"];
      //=====畫按鈕(type不為0時按鈕為凸起狀態(tài)type=0時按鈕為凹下狀態(tài))=====//
      CommandButton = function (mc, t, type) {
      c = 0xffffff;//按鈕左和上邊框顏色
      c1 = 0x000000;//按鈕右和下邊框顏色
      mc.createTextField("txt", 700, 12, 1, 27, 18);
      if (!type) {
      c = 0x000000;
      c1 = 0xffffff; //type=0時左和上與右和下邊框顏色交換;
      mc.createTextField("txt", 700, 13, 2, 27, 18);//按下時文本框向左下移,使字有凹下感覺
      }
      with (mc) {
      moveTo(0, 20);
      lineStyle(1, c, 100);
      beginFill(0xD1DEE9);
      lineTo(0, 0);
      lineTo(50, 0);
      lineStyle(1, c1, 100);
      lineTo(50, 20);
      lineTo(0, 20);
      endFill();
      txt.text = t;
      }
      };
      //===========畫框架=============//
      display = function (mc, x, y, w, h, txt, corl) {
      with (mc) {
      moveTo(x, y);
      lineStyle(0.5, 0x00000, 100);
      beginFill(corl, 40);
      lineTo(x w, y);
      lineTo(x w, y h);
      lineTo(x, y h);
      lineTo(x, y);
      endFill();
      createTextField("name", 300, x 2, y-17, 0, 0);
      name.autoSize = "left";
      name.selectable = false;
      name.border = true;
      name.background = true;
      name.backgroundColor = 0x798DA6;
      name.textColor = 0xffffff;
      name.text = txt;
      }
      };
      //========畫坐標軸上刻度及數(shù)字==============//
      dial = function (mc, len, corl, txt, type) {
      with (mc) {
      moveTo(0, 0);
      lineStyle(0.25, corl, 100);
      if (type) {//type不為0時刻度堅著畫,為0時刻度橫著畫;
      lineTo(0, len);
      createTextField("num", 600, -7, len 1, 0, 0);
      } else {
      lineTo(len, 0);
      createTextField("num", 600, len 1, -2, 0, 0);
      }
      num.autoSize = true;
      num.selectable = false;
      num.text = txt;
      }
      };
      //========畫坐標軸============//
      coordinate = function (x, y) {
      _root.moveTo(x-215, y);
      _root.lineStyle(0.25, 0x00000, 100);
      _root.lineTo(x 215, y);
      _root.lineTo(x 185, y 5);
      _root.moveTo(x 215, y);
      _root.lineTo(x 185, y-5);
      _root.moveTo(x, y 20);
      _root.lineTo(x, y-220);
      _root.lineTo(x-5, y-190);
      _root.moveTo(x, y-220);
      _root.lineTo(x 5, y-190);
      for (i=0; i<19; i  ) {
      _root.createEmptyMovieClip("l" i, 510 i);
      if (i<13) {
      !(i%2) ? dial(_root["l" i], 5, 0xff0000, myNum[i/2], 1) : dial(_root["l" i], 3, 0x000000, "", 1);//刻度隔一個為紅色,且有數(shù)字
      _root["l" i]._x = x-198 33*i;
      _root["l" i]._y = y;
      }
      if (i>12) {//同上
      !(i%2) ? dial(_root["l" i], 5, 0xff0000, myNum[i/2-3], 0) : dial(_root["l" i], 3, 0x000000, "", 0);
      _root["l" i]._x = x;
      _root["l" i]._y = y-33*(i-12);
      }
      }
      _root.createTextField("Xt", 250, x 220, y-3, 18, 18);
      _root.createTextField("Yt", 260, x, y-230, 18, 18);
      Xt.text = myNum[7];
      Xt.selectable = false;
      Yt.text = myNum[8];
      Yt.selectable = false;
      };
      inputBoxs = function (x, y) {
      var alpha = ["u =", "0", "o =", "1"];
      for (i=0; i<4; i  ) {
      _root.createTextField("v" i, 800 i, x i*35, y, 30, 16);
      if (i%2) {
      _root["v" i].type = "input";
      _root["v" i].border = true;
      _root["v" i].text = alpha[i];
      } else {
      _root["v" i].autoSize = "right";
      _root["v" i].selectable = false;
      _root["v" i].text = alpha[i];
      }
      }
      };
      //======寫標題========//
      headline = function (x, y, txt, dx) {
      _root.createTextField("title", 900, x, y, 0, 0);
      title.autoSize = true;
      title.selectable = false;
      title.text = txt;
      mytxf = new TextFormat();//創(chuàng)建一個文本格式對象;
      mytxf.size = dx;//太小
      mytxf.color = 0xff0000;//顏色
      mytxf.underline = true;//下劃線
      title.setTextFormat(mytxf);
      };
      //=====開始畫線函數(shù)====//
      startDraw = function () {
      m = Number(v1.text);
      n = Number(v3.text);//把v1,v3文本框中的值給m,n;
      x = -200;
      _root.createEmptyMovieClip("xian", 300);
      xian.moveTo(-200, 100);
      xian._x = 275;
      xian._y = 193;
      _root.onEnterFrame = function() {
      a = -(100/(Math.sqrt(2*Math.PI)*25*n))*Math.exp((-(Math.pow((x-100*m), 2)))/ (2*Math.pow(25*n, 2)));//這個為正態(tài)曲線公式,根椐這個公式來畫線;
      with (xian) {
      lineStyle(2, 0xE001E0, 100);
      lineTo(x, 50*a 100);//畫線
      if (x<=200) {//畫線范圍
      x  = 3;//3為畫線速度,建議設小一點,fps設大一點,這樣使畫出的線更平滑;
      }
      }
      };
      _root.btn1.enabled = 1;//暫停按鈕可用
      _root.btn5.enabled = 1;//繼續(xù)按鈕可用
      };
      //========繼續(xù)畫線========//
      continueDraw = function () {
      xian.moveTo(x-3, 50*a 100);//x,a繼續(xù)上面函數(shù)的值,從當前位置畫
      _root.onEnterFrame = function() {
      a = -(100/(Math.sqrt(2*Math.PI)*25*n))*Math.exp((-(Math.pow((x-100*m), 2)))/ (2*Math.pow(25*n, 2)));
      with (xian) {
      lineStyle(2, 0xE001E0, 100);
      lineTo(x, 50*a 100);
      if (x<=200) {
      x  = 3;//同上
      }
      }
      };
      };
      //========暫停和清除函數(shù)==========//
      pause_clear = function (k) {//不為0時為暫停,為0時為清除;
      _root.onEnterFrame = function() {
      x  = 0;//x值不增加
      };
      if (k) {
      xian.clear();//清除xian
      _root.btn1.enabled = 0;
      _root.btn5.enabled = 0;
      }
      };
      _root.onLoad = function() {
      headline(230, 20, "正態(tài)曲線", 20);
      for (i=0; i<3; i  ) {
      _root.createEmptyMovieClip("frame" i, 400 i);
      }
      display(_root.frame0, 40, 55, 470, 270, "顯示", 0xE6E1CC);
      display(_root.frame1, 40, 350, 160, 40, "變量", 0xDCE6ED);
      display(_root.frame2, 220, 350, 290, 40, "操作", 0xDCE6ED);
      coordinate(275, 295);
      inputBoxs(50, 365);
      _root.attachMovie("formula", "formula", 500);
      formula.useHandCursor = false;//鼠標不變手形
      formula._x = 42;
      formula._y = 57;
      for (i=0; i<6; i  ) {
      _root.createEmptyMovieClip("btn" i, 700 i);
      CommandButton(_root["btn" i], mytxt[i], 1);//用循環(huán)來畫按鈕;
      _root["btn" i]._x = 230 55*i;
      _root["btn" i]._y = 360;
      _root.btn5._x = 230 55*1;
      _root.btn5._y = 360;
      _root.btn5._visible = 0;//設置按鈕位置,并把暫停和繼續(xù)按鈕放在一起;且開始時繼續(xù)不可見
      }
      _root.btn1.enabled = 0;//開始時暫停不可用
      };
      _root.onEnterFrame = function() {//以下為按上每個按鈕的動作;
      _root.btn0.onPress = function() {
      CommandButton(_root.btn0, mytxt[0], 0);//按鼠標時按鈕凹下;
      _root.btn1._visible = 1;//暫停按鈕可見
      _root.btn5._visible = 0;繼續(xù)按鈕不可見
      startDraw();//調用開始畫線函數(shù);
      };
      _root.btn0.onRelease = function() {
      CommandButton(_root.btn0, mytxt[0], 1);//松開鼠標時按鈕凸起;
      };
      _root.btn1.onPress = function() {
      CommandButton(_root.btn1, mytxt[1], 0);
      pause_clear(0);//調用暫停
      };
      _root.btn1.onRelease = function() {
      CommandButton(_root.btn1, mytxt[1], 1);
      _root.btn1._visible = 0;
      _root.btn5._visible = 1;//按了暫停按鈕時,變成繼續(xù)按鈕;
      };
      _root.btn2.onPress = function() {
      CommandButton(_root.btn2, mytxt[2], 0);
      pause_clear(1);//調用清除函數(shù);
      };
      _root.btn2.onRelease = function() {
      CommandButton(_root.btn2, mytxt[2], 1);
      };
      _root.btn3.onPress = function() {
      CommandButton(_root.btn3, mytxt[3], 0);
      fscommand("fullscreen", true);//全屏
      };
      _root.btn3.onRelease = function() {
      CommandButton(_root.btn3, mytxt[3], 1);
      };
      _root.btn4.onPress = function() {
      CommandButton(_root.btn4, mytxt[4], 0);
      fscommand("quit");//退出
      };
      _root.btn4.onRelease = function() {
      CommandButton(_root.btn4, mytxt[4], 1);
      };
      _root.btn5.onPress = function() {
      CommandButton(_root.btn5, mytxt[5], 0);
      continueDraw();//調用繼續(xù)畫線函數(shù);
      };
      _root.btn5.onRelease = function() {
      CommandButton(_root.btn5, mytxt[5], 1);
      _root.btn5._visible = 0;
      _root.btn1._visible = 1;//按繼續(xù)按鈕時,變成暫停按鈕;
      };
      _root.formula.onRollOver = function() {
      formula._xscale = formula._yscale=330;//放大尺寸;
      };
      _root.formula.onRollOut = function() {
      formula._xscale = formula._yscale=100;//尺寸還原
      };
      };
      分享：flash action 詳解(9)
      同變量一樣,函數(shù)也可以具有全局性.只要在聲明時在前面給它加一個_global就可以了://計算矩形面積的全局函數(shù)_global.areaOfBox=function(a,b){retur
      


      

      


      來源：設計前沿網(wǎng)上收集//所屬分類：Flash教程/更新時間：2008-03-05


      


      



      


      



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