SetBeginArrow

设置笔触的起始箭头。

语法

expression.SetBeginArrow(type, width, length);

expression - 表示 ApiStroke 类的变量。

参数

名称	必需/可选	数据类型	默认值	描述
type	必需	LineEndType		起始箭头的类型。
width	可选	LineEndSize	"medium"	起始箭头的宽度。
length	可选	LineEndSize	"medium"	起始箭头的长度。

返回值

boolean

示例

在文档中为形状边框的起点添加箭头。

// How do I set the beginning arrow of a shape's outline in a document?

// Create a shape, retrieve its stroke, and apply a triangle arrow to the start of the border line in a document.

let doc = Api.GetDocument();
let paragraph = doc.GetElement(0);
let fill = Api.CreateSolidFill(Api.RGB(255, 200, 100));
let stroke = Api.CreateStroke(36000, Api.CreateSolidFill(Api.RGB(0, 0, 255)));
let shape = Api.CreateShape("line", 100 * 36000, 50 * 36000, fill, stroke);
paragraph.AddDrawing(shape);
let retrievedStroke = shape.GetLine();
let result = retrievedStroke.SetBeginArrow("triangle", "medium", "large");
paragraph.AddText("Begin arrow set: " + result);