flash AS绘图总结及补充
本次课程，对之前学过的画线方法给予总结，同时再加以补充
总结：
圆：
_root.createEmptyMovieClip("MC",1);
MC._x = 200;
MC._y = 150;
var R = 60;
MC.moveTo(R*Math.cos(0),R*Math.sin(0));
MC.lineStyle(2);
for (n=1; n<360; n++) {
var angle = n*Math.PI/180;
var tox = R*Math.cos(angle);
var toy = R*Math.sin(angle);
MC.lineTo(tox,toy);
}
椭圆：
_root.createEmptyMovieClip("MC",1);
MC._x = 200;
MC._y = 150;
var W = 50;
var H = 30;
MC.moveTo(W*Math.cos(0),H*Math.sin(0));
MC.lineStyle(2);
for (n=1; n<360; n++) {
var angle = n*Math.PI/180;
var tox = W*Math.cos(angle);
var toy = H*Math.sin(angle);
MC.lineTo(tox,toy);
}
螺旋线：
_root.createEmptyMovieClip("MC",1);
MC._x = 200;
MC._y = 150;
var R = 10;
var A = 3;
MC.moveTo(0,0);
MC.lineStyle(2);
for (n=1; n<360; n++) {
var angle = A*n*Math.PI/180;
var tox = angle*R*Math.cos(angle);
var toy = angle*R*Math.sin(angle);
MC.lineTo(tox,toy);
}
多边型：
_root.createEmptyMovieClip("MC",1);
MC._x = 200;
MC._y = 150;
var R = 50;
var sides = 5;
var angle = (360*Math.PI/180)/sides;
var MA:Array = new Array();
for (i=0; i<=sides; i++) {
MA[i] = i*angle;
}
MC.moveTo(R*Math.cos(MA[0]),R*Math.sin(MA[0]));
MC.lineStyle(2);
for (n=1; n<=sides; n++) {
var tox = R*Math.cos(MA[n]);
var toy = R*Math.sin(MA[n]);
MC.lineTo(tox,toy);
}
补充：
长方形：
_root.createEmptyMovieClip("MC",1);
MC._x = 200;
MC._y = 150;
var R = 60;
MC.moveTo(0,0);
MC.lineStyle(2);
MC.lineTo(R*2,0);
MC.lineTo(R*2,R);
MC.lineTo(0,R);
MC.lineTo(0,0);
同心圆(与圆对比)：
_root.createEmptyMovieClip("MC",
1);
MC._x = 200;
MC._y = 150;
var R = 30;
var layer = 5;
//圆的层数
MC.lineStyle(2);
for (i=1; i<=layer; i++) {
MC.moveTo(i*R*Math.cos(0),
i*R*Math.sin(0));
for (n=1; n<360; n++) {
var angle = i*n*Math.PI/180;
var tox = i*R*Math.cos(angle);
var toy = i*R*Math.sin(angle);
MC.lineTo(tox, toy);
}
}
蝶形(与圆对比)：
_root.createEmptyMovieClip("MC",
1);
MC._x = 200;
MC._y = 150;
var R = 60;
MC.moveTo(R*Math.cos(0), R*Math.sin(0));
MC.lineStyle(2);
for (n=1; n<360; n++) {
var angle = n*Math.PI/180;
tox = R*Math.cos(angle);
toy = R*Math.sin(angle*2);
MC.lineTo(tox, toy);
}
多棱形(与圆对比)：
_root.createEmptyMovieClip("MC",
1);
MC._x = 200;
MC._y = 150;
var sides = 5;
//棱数:应为奇数
var R = 100;
MC.moveTo(R*Math.cos(0), R*Math.sin(0));
MC.lineStyle(2);
for (n=1; n<360; n++) {
var angle = n*Math.PI/180;
var
r =
R*Math.cos(sides*angle);
tox =
r*Math.cos(angle);
toy = r*Math.sin(angle);
MC.lineTo(tox, toy);
}
星形(与多边形对比)：
_root.createEmptyMovieClip("MC",
1);
MC._x = 200;
MC._y = 150;
var R = 50;
var sides = 5;
var angle = (360*Math.PI/180)/sides;
var MA:Array = new Array();
for (i=0; i<=sides; i++) {
MA[i] = 2*i*angle;
}
x = R*Math.cos(MA[0]);
y = R*Math.sin(MA[0]);
MC.moveTo(x, y);
MC.lineStyle(2);
for (n=1; n<=sides; n++) {
var tox = R*Math.cos(MA[n]);
var toy = R*Math.sin(MA[n]);
MC.lineTo(tox, toy);
}
心形(与圆对比)：
_root.createEmptyMovieClip("MC",
1);
MC._x = 200;
MC._y = 150;
var R = 60;
MC.lineStyle(2);
for (n=1; n<360; n++) {
var angle = n*Math.PI/180;
var r =
R*Math.cos(angle)-R;
tox =
r*Math.cos(angle);
toy = r*Math.sin(angle);
MC.lineTo(tox, toy);
}
补充：flash教程,Flash游戏
