Method clear

packages/fairygui/src/text/DynamicFont.ts:450–457

* Clear atlas and reset * 清除图集并重置

()

     * 清除图集并重置
     */
    public clear(): void {
        this._glyphs.clear();
        this._cursorX = 0;
        this._cursorY = 0;
        this._rowHeight = 0;
        this.initCanvas();
        this.version++;
    }

    /**
     * Dispose resources