private void subFromROIButton_CheckedChanged(object sender, EventArgs e)
 {
     if (subFromROIButton.Checked)
     {
         RoiController.SetROISign(ROIOperation.Negative);
     }
 }
 private void addToROIButton_CheckedChanged(object sender, EventArgs e)
 {
     if (addToROIButton.Checked)
     {
         RoiController.SetROISign(ROIOperation.Positive);
     }
 }
 private void delAllROIButton_Click(object sender, EventArgs e)
 {
     RoiController.Reset();
 }
 private void delROIButton_Click(object sender, EventArgs e)
 {
     RoiController.RemoveActive();
 }
 private void reduceRect1Button_Click(object sender, EventArgs e)
 {
     RoiController.SetROIShapeNoOperator(new ROIRectangle2("搜索区域"));
 }
 private void circleButton_Click(object sender, EventArgs e)
 {
     RoiController.SetROIShape(new ROICircle());
 }
 private void rect2Button_Click(object sender, EventArgs e)
 {
     RoiController.SetROIShape(new ROIRectangle2());
 }