|
4、放大、缩小、拖动、还原上节多已经讲过了，但随着功能的增多，会越来越乱，所以我们把代码统一起来。并尽量把代码写到时间轴上，以便管理和修改。首先是初始化地图的代码和自定义函数： //停止播放
stop(); //放大，缩小，还原，拖动，测量的控制变量 var chengxu ; //所有左边功能按钮的初始化函数（把左边功能按钮都停止在第一帧） function chushi(){ _root.fangda_mc.gotoAndStop(1); _root.suoxiao_mc.gotoAndStop(1); _root.yuantu_mc.gotoAndStop(1); _root.tuodong_mc.gotoAndStop(1); _root.celiang_mc.gotoAndStop(1); } //初始化地图函数（把先不要显示的都隐藏） function chushimap(){ _root.map_mc.map2_mc._visible = 0; _root.map_mc.map3_mc._visible = 0; _root.map_mc.map4_mc._visible = 0; _root.map_mc.map5_mc._visible = 0; } //执行初始化地图函数（把先不要显示的都隐藏） chushimap(); //初始化功能提示函数 function gongnengtishi(){ _root.fangda_mc.fangda1._visible = 0; _root.suoxiao_mc.suoxiao1._visible = 0; _root.yuantu_mc.yuantu1._visible = 0; _root.tuodong_mc.tuodong1._visible = 0; _root.celiang_mc.celiang1._visible = 0; } //执行初始化功能提示函数（把提示隐藏） gongnengtishi(); //地图区域限制函数（限制地图脱离屏幕） function xianzhi(){ _root.onEnterFrame = function(){ if(map_mc._x>320*map_mc._xscale/200){map_mc._x=320*map_mc._xscale/200} if(map_mc._x<320-320*map_mc._xscale/200){map_mc._x=320-320*map_mc._xscale/200} if(map_mc._y>240*map_mc._yscale/200){map_mc._y=240*map_mc._yscale/200} if(map_mc._y<240-240*map_mc._yscale/200){map_mc._y=240-240*map_mc._yscale/200} } } //信息的显示和隐藏函数（放大显示和缩小隐藏） function xianshi(){ var dx = _root.map_mc._xscale; if(dx >= 120){ _root.map_mc.map2_mc._visible = 1; if(dx >= 140){ _root.map_mc.map3_mc._visible = 1; if(dx >= 160){ _root.map_mc.map4_mc._visible = 1; if(dx >= 180){ _root.map_mc.map5_mc._visible = 1; }else{ _root.map_mc.map5_mc._visible = 0; } }else{ _root.map_mc.map4_mc._visible = 0; _root.map_mc.map5_mc._visible = 0; } }else{ _root.map_mc.map3_mc._visible = 0; _root.map_mc.map4_mc._visible = 0; _root.map_mc.map5_mc._visible = 0; } }else{chushimap();} } //测量函数 function celiang(){ var sx, sy; _root.map_mc.cl_mc.clear(); _root.map_mc.cl_mc.cl_txt.removeTextField(); sx = _root.map_mc._xmouse; sy = _root.map_mc._ymouse; draw = true; onMouseMove = function () { if (draw) { _root.map_mc.createEmptyMovieClip("cl_mc",1); _root.map_mc.cl_mc.lineStyle(1, 0x009900, 80); _root.map_mc.cl_mc.moveTo(sx, sy); _root.map_mc.cl_mc.lineTo(_root.map_mc.cl_mc._xmouse, _root.map_mc.cl_mc._ymouse); ttt = Math.floor(Math.sqrt(Math.pow(_root.map_mc.cl_mc._width, 2)+Math.pow(_root.map_mc.cl_mc._height, 2))); _root.map_mc.cl_mc.createTextField("cl_txt",1, _root.map_mc.cl_mc._xmouse, _root.map_mc.cl_mc._ymouse-22, 100, 22); _root.map_mc.cl_mc.cl_txt.text = ttt +" m"; } }; onMouseUp = function () { draw = false; } }; 5、Map_mc功能的代码如下（map_mc 的所有功能）： _root.map_mc.onPress = function(){
if(chengxu == "fangda"){ if(_root.map_mc._xscale < 200){ _root.map_mc._xscale += 10; _root.map_mc._yscale += 10; xianshi(); } } else if(chengxu == "suoxiao"){ if(_root.map_mc._xscale > 100){ _root.map_mc._xscale -= 10; _root.map_mc._yscale -= 10; xianshi(); } } else if(chengxu == "yuantu"){ _root.map_mc._xscale = 100; _root.map_mc._yscale = 100; _root.map_mc._x = 160; _root.map_mc._y = 120; chushimap(); } else if(chengxu == "tuodong"){ startDrag(_root.map_mc,false); xianzhi(); } else if(chengxu == "celiang"){ celiang(); } } _root.map_mc.onRelease = function(){ stopDrag(); } 6、左边功能按钮的功能代码即功能提示代码： //left的功能代码
fangda_mc.onPress = function(){ chushi(); _root.fangda_mc.gotoAndStop(2); chengxu = "fangda"; } suoxiao_mc.onPress = function(){ chushi(); _root.suoxiao_mc.gotoAndStop(2); chengxu = "suoxiao"; } yuantu_mc.onPress = function(){ chushi(); _root.yuantu_mc.gotoAndStop(2); chengxu = "yuantu"; } tuodong_mc.onPress = function(){ chushi(); _root.tuodong_mc.gotoAndStop(2); chengxu = "tuodong"; } celiang_mc.onPress = function(){ chushi(); _root.celiang_mc.gotoAndStop(2); chengxu = "celiang"; } //left的功能提示代码 fangda_mc.onRollOver = function(){ _root.fangda_mc.fangda1._visible = 1; } suoxiao_mc.onRollOver = function(){ _root.suoxiao_mc.suoxiao1._visible = 1; } yuantu_mc.onRollOver = function(){ _root.yuantu_mc.yuantu1._visible = 1; } tuodong_mc.onRollOver = function(){ _root.tuodong_mc.tuodong1._visible = 1; } celiang_mc.onRollOver = function(){ _root.celiang_mc.celiang1._visible = 1; } fangda_mc.onRollOut = function(){ _root.fangda_mc.fangda1._visible = 0; } suoxiao_mc.onRollOut = function(){ _root.suoxiao_mc.suoxiao1._visible = 0; } yuantu_mc.onRollOut = function(){ _root.yuantu_mc.yuantu1._visible = 0; } tuodong_mc.onRollOut = function(){ _root.tuodong_mc.tuodong1._visible = 0; } celiang_mc.onRollOut = function(){ _root.celiang_mc.celiang1._visible = 0; } 到目前为止，我们实现了最基最本地图的功能，但还不能在实际中应用。大家知道地图的数据量是很大的，我们不可能都写到flash里。所以我们需要把所有的数据写到数据库里，动态的从数据库调你想要看到或查找的内容。这就是我们下节课的内容了。 |