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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>Dear All<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span lang=EN-US>I managed to write a PV plugin which fits a sphere to points selected on a poly data object. I can pass the sphere as the output of the filter &#8211; fine. But now I would like to  be able to interactively adjust the radius of the sphere to perform some measurements. The way I implemented the filter, this is not possible because the sphere is not a sphere to PV but a 3D object of any shape. So, is it possible to generate a vtkSource out of a PV plugin?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span lang=EN-US>Any help would be highly appreciated.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span lang=EN-US>Thanks &#8211; Peter.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";mso-fareast-language:DE'>-------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";mso-fareast-language:DE'>Prof. Dr. Peter Böttcher, DipECVS<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";mso-fareast-language:DE'>European Veterinary Specialist in Surgery<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";mso-fareast-language:DE'>Fachtierarzt für Kleintierchirurgie<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";mso-fareast-language:DE'>Klinik für Kleintiere <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";mso-fareast-language:DE'>Universität Leipzig <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";mso-fareast-language:DE'>An den Tierkliniken 23 <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";mso-fareast-language:DE'>D-04103 Leipzig (Germany)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";mso-fareast-language:DE'>Tel: +49-341-9738700 <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";mso-fareast-language:DE'>Fax: +49-341-9738799<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";mso-fareast-language:DE'>Email: boettcher@kleintierklinik.uni-leipzig.de<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p></div></body></html>