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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link=blue vlink=purple style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>I load an image and visualize it with vtkImageViewer…<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>How can I draw lines on it? Thank’s<o:p></o:p></span></p></div></body></html>