HWindowControl控件图像显示：适应窗口，放大，缩放，平移
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适应窗口
1 public void ImageFitWindow(HImage hImage, HWindowControl hwindow) 2 { 3 HTuple width, height; 4 hImage.GetImageSize(out width, out height); 5 double ratioWidth = 1.0 * width.I / hwindow.WindowSize.Width; 6 double ratioHeight = 1.0 * height / hwindow.WindowSize.Height; 7 8 HTuple row1, column1, row2, column2; 9 10 if (ratioWidth > ratioHeight) 11 { 12 row1 = -(1.0) * (hwindow.WindowSize.Height * ratioWidth - height.I) / 2; 13 column1 = 0; 14 row2 = row1 + hwindow.WindowSize.Height * ratioWidth; 15 column2 = column1 + hwindow.WindowSize.Width * ratioWidth; 16 } 17 else 18 { 19 row1 = 0; 20 column1 = -(1.0) * (hwindow.WindowSize.Width * ratioHeight - height.I) / 2; 21 row2 = row1 + hwindow.WindowSize.Height * ratioHeight; 22 column2 = column1 + hwindow.WindowSize.Width * ratioHeight; 23 24 } 25 // hwindow.HalconWindow.SetPart(row1, column1, row2, column2); 26 HOperatorSet.SetPart(hwindow.HalconWindow, row1, column1, row2, column2); 27 hwindow.HalconWindow.DispObj(hImage); 28 }
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放大，缩放，平移
借助鼠标事件实现
1 public class MouseEvent 2 { 3 private HTuple WindowID; 4 private double RowDown;//鼠标按下时的行坐标 5 private double ColDown;//鼠标按下时的列坐标 6 private HObject hImage; 7 HTuple ImageWidth, ImageHeight; 8 public MouseEvent(HWindowControl hWindowControl,HObject hImage) 9 { 10 this.WindowID = hWindowControl.HalconWindow; 11 if (hImage == null) 12 return; 13 this.hImage = hImage; 14 HOperatorSet.GetImageSize(hImage,out ImageWidth,out ImageHeight); 15 hWindowControl.HMouseDown += new HMouseEventHandler(hWindowControl1_HMouseDown); 16 hWindowControl.HMouseUp += new HMouseEventHandler(hWindowControl1_HMouseUp); 17 hWindowControl.HMouseWheel += new HMouseEventHandler(hWindowControl1_HMouseWheel); 18 hWindowControl.HMouseMove += new HMouseEventHandler(hWindowControl1_HMouseMove); 19 } 20 //鼠标按下，记录当前坐标值 21 private void hWindowControl1_HMouseDown(object sender,HMouseEventArgs e) 22 { 23 HTuple Row, Column, Button; 24 HOperatorSet.GetMposition(WindowID, out Row,out Column, out Button); 25 RowDown = Row; //鼠标按下时的行坐标 26 ColDown = Column; //鼠标按下时的列坐标 27 } 28 private void hWindowControl1_HMouseUp(object sender,HMouseEventArgs e) 29 { 30 HTuple row1, col1, row2, col2, Row, Column, Button; 31 HOperatorSet.GetMposition(WindowID, out Row, out Column, out Button); 32 double RowMove = Row - RowDown; //鼠标弹起时的行坐标减去按下时的行坐标，得到行坐标的移动值 33 double ColMove = Column - ColDown;//鼠标弹起时的列坐标减去按下时的列坐标，得到列坐标的移动值 34 HOperatorSet.GetPart(WindowID, out row1, out col1, out row2, out col2);//得到当前的窗口坐标 35 HOperatorSet.SetPart(WindowID, row1 - RowMove, col1 - ColMove, row2 - RowMove, col2 - ColMove);//这里可能有些不好理解。以左上角原点为参考点 36 HOperatorSet.ClearWindow(WindowID); 37 HOperatorSet.DispObj(hImage, WindowID); 38 } 39 private void hWindowControl1_HMouseWheel(object sender, HMouseEventArgs e) 40 { 41 42 HTuple Zoom, Row, Col, Button; 43 HTuple Row0, Column0, Row00, Column00, Ht, Wt, r1, c1, r2, c2; 44 if (e.Delta > 0) 45 { 46 Zoom = 1.5; 47 } 48 else 49 { 50 Zoom = 0.5; 51 } 52 HOperatorSet.GetMposition(WindowID, out Row, out Col, out Button); 53 HOperatorSet.GetPart(WindowID, out Row0, out Column0, out Row00, out Column00); 54 Ht = Row00 - Row0; 55 Wt = Column00 - Column0; 56 if (Ht * Wt < 32000 * 32000 || Zoom == 1.5)//普通版halcon能处理的图像最大尺寸是32K*32K。如果无限缩小原图像，导致显示的图像超出限制，则会造成程序崩溃 57 { 58 r1 = (Row0 + ((1 - (1.0 / Zoom)) * (Row - Row0))); 59 c1 = (Column0 + ((1 - (1.0 / Zoom)) * (Col - Column0))); 60 r2 = r1 + (Ht / Zoom); 61 c2 = c1 + (Wt / Zoom); 62 HOperatorSet.SetPart(WindowID, r1, c1, r2, c2); 63 HOperatorSet.ClearWindow(WindowID); 64 HOperatorSet.DispObj(hImage, WindowID); 65 } 66 } 67 private void hWindowControl1_HMouseMove(object sender, HMouseEventArgs e) 68 { 69 70 HTuple Row, Column, Button, pointGray; 71 HOperatorSet.GetMposition(WindowID, out Row, out Column, out Button); //获取当前鼠标的坐标值 72 if (ImageHeight != null && (Row > 0 && Row < ImageHeight) && (Column > 0 && Column < ImageWidth))//设置3个条件项，防止程序崩溃。 73 { 74 HOperatorSet.GetGrayval(hImage, Row, Column, out pointGray); //获取当前点的灰度值 75 } 76 else 77 { 78 pointGray = "_"; 79 } 80 81 } 82 }
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网上找文件
这个文件更智能化，类似于康耐视图像显示窗口控件
https://files.cnblogs.com/files/xingyuanzier/HWindow_Tool.zip?t=1649323448