halcondistance_pp求两点的距离

在HDevelop中

dev_close_window ()
dev_update_off()
read_image (Image9, 'D:/bb/tu/9.jpg')
rgb1_to_gray (Image9, GrayImage)

threshold (GrayImage, Region, 200, 255)
connection (Region, ConnectedRegions)

select_obj (ConnectedRegions, ObjectSelected, 1)
select_obj (ConnectedRegions, ObjectSelected1, 2)
area_center (ObjectSelected, Area, Row, Column)
area_center (ObjectSelected1, Area1, Row1, Column1)

get_image_size (Image9, Width, Height)
dev_open_window(10,10,Width, Height,'black',WindowHandle)
dev_display(ObjectSelected)

dev_open_window(10,100,Width, Height,'black',WindowHandle1)
dev_display(ObjectSelected1)

distance_pp (Row, Column, Row1, Column1, Distance)
*求两点的距离
*参数1：第一个点的行坐标-y
*参数2：第一个点的列坐标-x
*参数3：第二个点的行坐标-y
*参数4：第二个点的列坐标-x
*参数5：返回的距离

在QtCreator中

  HObject  ho_Image9, ho_GrayImage, ho_Region, ho_ConnectedRegions;
  HObject  ho_ObjectSelected, ho_ObjectSelected1;
  HTuple  hv_Area, hv_Row, hv_Column, hv_Area1;
  HTuple  hv_Row1, hv_Column1, hv_Width, hv_Height, hv_WindowHandle;
  HTuple  hv_WindowHandle1, hv_Distance;

  ReadImage(&ho_Image9, "D:/bb/tu/9.jpg");
  Rgb1ToGray(ho_Image9, &ho_GrayImage);

  Threshold(ho_GrayImage, &ho_Region, 200, 255);
  Connection(ho_Region, &ho_ConnectedRegions);

  SelectObj(ho_ConnectedRegions, &ho_ObjectSelected, 1);
  SelectObj(ho_ConnectedRegions, &ho_ObjectSelected1, 2);
  AreaCenter(ho_ObjectSelected, &hv_Area, &hv_Row, &hv_Column);
  AreaCenter(ho_ObjectSelected1, &hv_Area1, &hv_Row1, &hv_Column1);

  GetImageSize(ho_Image9, &hv_Width, &hv_Height);
  SetWindowAttr("background_color","black");
  OpenWindow(10,10,hv_Width,hv_Height,0,"visible","",&hv_WindowHandle);
  HDevWindowStack::Push(hv_WindowHandle);
  if (HDevWindowStack::IsOpen())
    DispObj(ho_ObjectSelected, HDevWindowStack::GetActive());

  SetWindowAttr("background_color","black");
  OpenWindow(10,100,hv_Width,hv_Height,0,"visible","",&hv_WindowHandle1);
  HDevWindowStack::Push(hv_WindowHandle1);
  if (HDevWindowStack::IsOpen())
    DispObj(ho_ObjectSelected1, HDevWindowStack::GetActive());

  DistancePp(hv_Row, hv_Column, hv_Row1, hv_Column1, &hv_Distance);
  //求两点的距离
  //参数1：第一个点的行坐标-y
  //参数2：第一个点的列坐标-x
  //参数3：第二个点的行坐标-y
  //参数4：第二个点的列坐标-x
  //参数5：返回的距离