halcon学习笔记——实例篇 长度和角度测量+

halcon学习笔记——实例篇长度和角度测量实例二：长度和角度测量

素材图片：

halcon代码：

1: *读取并截取图片

2: dev_close_window()

3: read_image (Image, 'D:/MyFile/halcon/长度和角度测量/图.png')

4: crop_rectangle1 (Image, ImagePart, 75, 0, 400, 400)

5: get_image_size (ImagePart, Width, Height)

6: dev_open_window (0, 0, Width, Height, 'black', WindowHandle)

7: dev_display (ImagePart)

8:

9: *获取图形的边界

10: threshold (ImagePart, Regions, 0, 112)

11:

12: *分离三角形和圆形

13: connection(Regions,ConnectedRegions)

14: sort_region(ConnectedRegions,SortedRegions,'upper_left','true','column')

15: select_obj(SortedRegions,Circle,1)

16: select_obj(SortedRegions,Triangle,2)

17:

18: *获取三角形各边的信息

19: skeleton(Triangle,TriangleSkeleton)

20: gen_contours_skeleton_xld(TriangleSkeleton,TriangleContours,1,'filter')

21: segment_contours_xld(TriangleContours,ContoursSplit,'lines_circles', 5, 4, 2)

22:select_contours_xld(ContoursSplit,SelectedContours, 'contour_length',100, 999, -0.5, 0.5)

23: fit_line_contour_xld (SelectedContours, 'tukey', -1, 10, 5, 2, RowBegin, ColBegin, RowEnd, ColEnd, Nr, Nc, Dist)

24:

25: *计算三角形角度

26:angle_ll (RowBegin[0], ColBegin[0], RowEnd[0], ColEnd[0], RowBegin[1], ColBegin[1], RowEnd[1], ColEnd[1], Angle1)

27:angle_ll (RowBegin[0], ColBegin[0], RowEnd[0], ColEnd[0], RowBegin[2], ColBegin[2], RowEnd[2], ColEnd[2], Angle2)

28:angle_ll (RowBegin[1], ColBegin[1], RowEnd[1], ColEnd[1], RowBegin[2], ColBegin[2], RowEnd[2], ColEnd[2], Angle3)

29: Angle1:=abs(deg(Angle1))

30: Angle2:=abs(deg(Angle2))

31: Angle3:=abs(deg(Angle3))

32:

33: *获取圆的信息

34: area_center(Circle,AreaCircle, RowCircle, ColumnCircle)

35:

36: *计算圆心到三角形各边的距离

37: Distance := []

38:for Index := 0 to 2 by 1

39:distance_pl (RowCircle, ColumnCircle, RowBegin[Index], ColBegin[Index], RowEnd[Index], ColEnd[Index], ThisDistance)

40: Distance := [Distance,ThisDistance]

41: endfor