circle fit based on VC
......................\IPLab_20061006
......................\..............\700W-3.jpg
......................\..............\ChildFrm.cpp
......................\..............\ChildFrm.h
......................\..............\Debug
......................\..............\.....\ChildFrm.obj
......................\..............\.....\ChildFrm.sbr
......................\..............\.....\FastHitTest.obj
......................\..............\.....\FastHitTest.sbr
......................\..............\.....\IPLab.bsc
......................\..............\.....\IPLab.exe
......................\..............\.....\IPLab.ilk
......................\..............\.....\IPLab.obj
......................\..............\.....\IPLab.pch
......................\..............\.....\IPLab.pdb
......................\..............\.....\IPLab.res
......................\..............\.....\IPLab.sbr
......................\..............\.....\IPLabDoc.obj
......................\..............\.....\IPLabDoc.sbr
......................\..............\.....\IPLabView.obj
......................\..............\.....\IPLabView.sbr
......................\..............\.....\MainFrm.obj
......................\..............\.....\MainFrm.sbr
......................\..............\.....\StdAfx.obj
......................\..............\.....\StdAfx.sbr
......................\..............\.....\vc60.idb
......................\..............\.....\vc60.pdb
......................\..............\.....\ViewActionBase.obj
......................\..............\.....\ViewActionBase.sbr
......................\..............\.....\ViewActionEditTool.obj
......................\..............\.....\ViewActionEditTool.sbr
......................\..............\.....\ViewActionImageTool.obj
......................\..............\.....\ViewActionImageTool.sbr
......................\..............\FastHitTest.cpp
......................\..............\FastHitTest.h
......................\..............\GDI+Files
......................\..............\.........\GdiPlus.h
......................\..............\.........\GdiPlus.lib
......................\..............\.........\GdiPlusBase.h
......................\..............\.........\GdiPlusBitmap.h
......................\..............\.........\GdiPlusBrush.h
......................\..............\.........\GdiPlusCachedBitmap.h
......................\..............\.........\GdiPlusColor.h
......................\..............\.........\GdiPlusColorMatrix.h
......................\..............\.........\GdiPlusEnums.h
......................\..............\.........\GdiPlusFlat.h
......................\..............\.........\GdiPlusFont.h
......................\..............\.........\GdiPlusFontCollection.h
......................\..............\.........\GdiPlusFontFamily.h
......................\..............\.........\GdiPlusGpStubs.h
......................\..............\.........\GdiPlusGraphics.h
......................\..............\.........\GdiPlusHeaders.h
......................\..............\.........\GdiPlusimageAttributes.h
......................\..............\.........\GdiPlusImageCodec.h
......................\..............\.........\GdiPlusImaging.h
......................\..............\.........\GdiPlusInit.h
......................\..............\.........\GdiPlusLineCaps.h
......................\..............\.........\GdiPlusMatrix.h
......................\..............\.........\GdiPlusMem.h
......................\..............\.........\GdiPlusMetaFile.h
......................\..............\.........\GdiPlusMetaHeader.h
......................\..............\.........\GdiPlusPath.h
......................\..............\.........\GdiPlusPen.h
......................\..............\.........\GdiPlusPixelFormats.h
......................\..............\.........\GdiPlusRegion.h
......................\..............\.........\GdiPlusStringFormat.h
......................\..............\.........\GdiPlusTypes.h
......................\..............\IPLab.aps
.....