PHP Dictionary::add_writing示例

function learn(&$ret, &$writing, $char_id, $user_id)
{
    try {
        $c = new Character();
        $w = $c->create_sparse_writing($writing);
        //骨架化笔画
        $f = new Feature();
        $features = $f->make_feature($w);
        //获取特征
        $dic = new Dictionary();
        $dic->add_writing($char_id, $w, $user_id);
        //添加笔迹
        $dict_feature = $dic->get_feature($char_id);
        //获取数据库中已存的特征值
        $dict_feature = isset($dict_feature) ? json_decode($dict_feature) : null;
        $t = new Trainer();
        $t->train($features, $dict_feature);
        $first_stroke_type = $c->get_first_stroke_type($w);
        //首笔的笔画类型（横竖撇点折）
        $int_strokes = sizeof($w->s);
        //笔画数
        $dic->update_character($char_id, json_encode($t->train_features), $int_strokes, $first_stroke_type);
        $ret->msgno = MSG_OK;
        $ret->msg = MSG_OK_LEARN;
    } catch (Exception $e) {
        $ret->msgno = MSG_ERR;
        $ret->msg = $e->getMessage();
    }
}