[黑鸟]

请教一下懂的大神，在AI的jsx脚本中如何画出比如1/2圆弧，这样不不闭合的多点弧线？先谢谢啦!

[黑鸟]

没有大神知道吗?
那么官方文件里的
//Adding a path point to a path
// Appends a new PathPoint to an existing path
// and initializes its anchor and handle points.
if ( app.documents.length > 0 ) {
var doc = app.activeDocument;
var line = doc.pathItems.add();
line.stroked = true;
line.setEntirePath( Array( Array(220, 475), Array(375, 300) ) );


// Append another point to the line
var newPoint = doc.pathItems[0].pathPoints.add();

newPoint.anchor = Array(220, 300);
newPoint.leftDirection = newPoint.anchor;
newPoint.rightDirection = newPoint.anchor;
newPoint.pointType = PointType.CORNER;
}
运行怎么会报错呢？查找不到第一次画的直线。
不然我在这个基础上修改先画一条小短线在后面加一个点，再加一个点，再加一个点确定好锚点。也能画出弧线来。
大神来帮帮忙！

[calvin530126]

作者: 黑鸟

没有大神知道吗?
那么官方文件里的
//Adding a path point to a path
// Appends a new PathPoint to an existing path
// and initializes its anchor and handle points.
if ( app.documents.length > 0 ) {
var doc = app.activeDocument;
var line = doc.pathItems.add();
line.stroked = true;
line.setEntirePath( A...

//请参考以下代码


////////////////////////////////////////////////////////////////////////////////////////////////
#target illustrator
var doc = app.activeDocument;

createArc(30)//括号内输入直径，单位是mm

function createArc(diaNum){
var pathItem = doc.pathItems.add();
var u=2.83464567
var dia=diaNum*u
var rad=dia/2
var coe=5/3.75
var point1 = pathItem.pathPoints.add();
point1.anchor =[0,0];
point1.leftDirection = point1.anchor;
point1.rightDirection =[rad*coe,0];

var point2 = pathItem.pathPoints.add();
point2.anchor = [0, dia]
point2.leftDirection = [rad*coe, dia];
point2.rightDirection = point2.anchor;

pathItem.stroked = true;
pathItem.filled= false;}

////////////////////////////////////////////////////////////////////////////////////////////////

[黑鸟]

作者: calvin530126

//请参考以下代码


////////////////////////////////////////////////////////////////////////////////////////////////
#target illustrator
var doc = app.activeDocument;

createArc(30)//括号内输入直径，单位是mm

function createArc(diaNum){
var pathItem = doc.pathItems.add();
var u=2.83464567
var dia=diaNum*u
...

非常感谢大神，因为工作需要平常要画的比较圆，所以在长老的基础上加了个点，AI本身半圆需要三个点是有道理的 另外正在琢磨其他需要用点画的其他形状，不明白的还要再向各位大神请教！


//#target illustrator
var doc = app.activeDocument;

createArc(30)//括号内输入直径，单位是mm

function createArc(diaNum){
var u=2.83464567
var dia=diaNum*u //直径
var rad=dia/2 //半径
var coe=dia*0.27625

var pathItem = doc.pathItems.add();
var point1 = pathItem.pathPoints.add();
point1.anchor =[0,rad];
point1.leftDirection = point1.anchor;
point1.rightDirection =[0,rad-coe];
var point2 = pathItem.pathPoints.add();
point2.anchor = [rad, 0]
point2.leftDirection = [rad-coe, 0];
point2.rightDirection = [rad+coe, 0];
var point3 = pathItem.pathPoints.add();
point3.anchor = [dia, rad]
point3.leftDirection = [dia,rad-coe];
point3.rightDirection = point3.anchor;
pathItem.stroked = true;
pathItem.filled= false;
}