【机器视觉】 break算子

女爷i 2022-10-07 05:54 206阅读 0赞

## 00. 目录 ##

### 文章目录 ###

*   *  00. 目录
     *  01. 概述
     *  02. 签名
     *  03. 描述
     *  04. 注意
     *  05. 参数
     *  06. 结果
     *  07. 附录

## 01. 概述 ##

break - 结束循环执行或跳出switch段。

## 02. 签名 ##

`break( : : : )`

## 03. 描述 ##

break结束最近的for，while，或repeat…until循环。 另外，break语句用于离开switch段，特别是在一个case分支的结尾处。 程序跳出，继续在随后的程序行中执行（The program execution is continued at the program line following the corresponding block.）。

不在循环或switch段的break语句无效。

**原文描述**：

break terminates the smallest enclosing for, while, or repeat…until loop. In addition, the break statement is used to leave a switch block, in particular at the end of a case branch. The program execution is continued at the program line following the corresponding block.

break statements that are not enclosed by a loop or switch block are invalid.

## 04. 注意 ##

无

## 05. 参数 ##

无

## 06. 结果 ##

break（作为算子）总是返回2（H\_MSG\_TRUE）。

**HDevelop例程**

> two\_camera\_calibration.hdev Perform high precision mosaicking using a special calibration object  
> switch\_case.hdev Use switch/case statement for a multiway branch  
> hand\_eye\_stationarycam\_grasp\_nut.hdev Calculate pose for grasping a nut based on results of hand-eye calibration for a stationary camera  
> camera\_calibration\_external.hdev Measure positions on a caliper rule using camera calibration  
> 3d\_matching\_clamps.hdev Recognize 3D objects in images using a 3D DXF model

**程序示例**

read_image (Image, 'monkey')
    threshold (Image, Region, 160, 180)
    connection (Region, Regions)
    Number := |Regions|
    AllRegionsValid := 1
    * check if for all regions area <=30
    for i := 1 to Number by 1
      select_obj (Regions, ObjectSelected, i)
      area_center (ObjectSelected, Area, Row, Column)
      if (Area > 30)
        AllRegionsValid := 0
        break
      endif
    endfor

## 07. 附录 ##

**7.1 机器视觉博客汇总**  
网址：[https://dengjin.blog.csdn.net/article/details/116837497][https_dengjin.blog.csdn.net_article_details_116837497]

[https_dengjin.blog.csdn.net_article_details_116837497]: https://dengjin.blog.csdn.net/article/details/116837497