halconget_contour_xld返回XLD轮廓的坐标

在HDevelop中

dev_close_window ()
read_image (Image, 'D:/bb/tu/1.jpg')
rgb1_to_gray (Image, GrayImage)

edges_sub_pix (GrayImage, Edges, 'canny', 1, 5, 10)
*亚像素边缘

select_shape_xld (Edges, SelectedXLD, ['contlength','area'], 'and', [108,700],[109,800])

get_contour_xld (SelectedXLD, Row, Col)
*返回XLD轮廓的坐标
*参数1：轮廓
*参数2：行坐标--数组
*参数3：列坐标--数组


get_image_size (GrayImage, Width, Height)
dev_open_window(10,10,Width, Height,'black',WindowHandle3)
dev_display(SelectedXLD)

在QtCreator中

    HObject  ho_Image, ho_GrayImage, ho_Edges, ho_SelectedXLD;
    HTuple  hv_Row, hv_Col, hv_Width, hv_Height, hv_WindowHandle3;

  ReadImage(&ho_Image, "D:/bb/tu/1.jpg");
  Rgb1ToGray(ho_Image, &ho_GrayImage);

  EdgesSubPix(ho_GrayImage, &ho_Edges, "canny", 1, 5, 10);
  //亚像素边缘

  SelectShapeXld(ho_Edges, &ho_SelectedXLD, (HTuple("contlength").Append("area")), 
      "and", (HTuple(108).Append(700)), (HTuple(109).Append(800)));

  GetContourXld(ho_SelectedXLD, &hv_Row, &hv_Col);
  //返回XLD轮廓的坐标
  //参数1：轮廓
  //参数2：行坐标--数组
  //参数3：列坐标--数组


  GetImageSize(ho_GrayImage, &hv_Width, &hv_Height);
  SetWindowAttr("background_color","black");
  OpenWindow(10,10,hv_Width,hv_Height,0,"visible","",&hv_WindowHandle3);
  HDevWindowStack::Push(hv_WindowHandle3);
  if (HDevWindowStack::IsOpen())
    DispObj(ho_SelectedXLD, HDevWindowStack::GetActive());