how to use
初始化
const sc = new Scratch('#div');
const el = document.getElementById('#div');
const sc = new Scratch(el);
const sc = new Scratch({
id: '#div'
});
const el = document.getElementById('#div');
const sc = new Scratch({
el
});
const sc = new Scratch();
sc.init('#div');
const sc = new Scratch();
const el = document.getElementById('#div');
sc.init(el);
const sc = new Scratch();
sc.init({
id: '#div'
});
const sc = new Scratch();
const el = document.getElementById('#div');
sc.init({
el
});
配置项
interface ScratchConfig {
/** 刮线的宽度,默认40 */
lineWidth?: number;
/** 全显阈值 0 ~ 1,默认0.3 */
threshold?: number;
/** 遮罩层颜色,默认#ccc */
fillStyle?: string;
}
有两种方法改变配置项:1、在初始化时将配置项传入;2、调用setConfig方法设置配置项 注意:在初始化之后,,改变fillStyle不会立即改变遮罩层颜色,想要更新需要重新调用drawMask方法;
drawMask 和 clearMask
drawMask:画出遮罩层;
clearMask:清除遮罩层;