/// <summary>
/// Calculates the ModelROI region for all objects contained
/// in ROIList, by adding and subtracting the positive and
/// negative ROI objects.
/// </summary>
public bool DefineModelROI()
{
HalconDotNet.HRegion tmpAdd, tmpDiff, tmp;
double row, col;
if (_signROI == SIGN_ROI_NONE)
{
return(true);
}
tmpAdd = new HalconDotNet.HRegion();
tmpDiff = new HalconDotNet.HRegion();
tmpAdd.GenEmptyRegion();
tmpDiff.GenEmptyRegion();
for (int i = 0; i < ROIList.Count; i++)
{
switch (((ROI)ROIList[i]).GetROISign())
{
case ROI.SIGN_NEGATIVE:
tmp = ((ROI)ROIList[i]).GetRegion();
tmpDiff = tmp.Union2(tmpDiff);
break;
case ROI.SIGN_POSITIVE:
tmp = ((ROI)ROIList[i]).GetRegion();
tmpAdd = tmp.Union2(tmpAdd);
break;
}
}
if (this.ModelROI != null)
{
this.ModelROI.Dispose();
}
this.ModelROI = null;
if (tmpAdd.AreaCenter(out row, out col) > 0)
{
tmp = tmpAdd.Difference(tmpDiff);
if (tmp.AreaCenter(out row, out col) > 0)
{
this.ModelROI = tmp;
}
}
if (this.ModelROI == null || ROIList.Count == 0)
{
return(false);
}
return(true);
}
public override HalconDotNet.HRegion GetRegion()
{
HalconDotNet.HRegion rgInternal = new HalconDotNet.HRegion();
rgInternal.GenCircle(_locateRow, _locateCol, _radiusInternal);
HalconDotNet.HRegion rgExternal = new HalconDotNet.HRegion();
rgExternal.GenCircle(_locateRow, _locateCol, _radiusExternal);
HalconDotNet.HRegion rg = new HalconDotNet.HRegion();
rg.Dispose();
//计算圆环区域:半径大的圆与半径小的圆之间的差集
rg = (_radiusExternal > _radiusInternal) ? rgExternal.Difference(rgInternal) : rgInternal.Difference(rgExternal);
return(rg);
}