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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hi there,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I have an algorithm generating a vtkPolyData as output. I would like to write a test, in order to make sure that my algorithm generates the same output every day (even though there might be changes to the algorithm or to surrounding classes). What is a nice way to do this?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I thought I could save a generated PolyData as “ground truth” and compare it point wise to the generated output. However, my output data contains lots of 3D floating-point points and thus I have to perform lots of comparisons between floating-point numbers and this can be difficult for different data or 32Bit/64Bit Systems. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I was wondering if there are any methods/classes already meant general testing purposes? Anything I could reuse for comparing two PolyDatas or anything to make sure my algorithm provides the same result for the same data. I tried to look into tests of other VTK classes but couldn’t really find anything. Any suggestions?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Thomas<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Thomas Kilgus<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>German Cancer Research Center (DKFZ)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Div. Medical and Biological Informatics <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Junior group: Computer-assisted Interventions (E131)<o:p></o:p></span></p><p class=MsoNormal>Im Neuenheimer Feld 280<o:p></o:p></p><p class=MsoNormal>69120 Heidelberg, Germany<o:p></o:p></p><p class=MsoNormal>Phone: +49(0) 6221-42-3545<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>