Approach to draw rectangle outside focused window for displaying 2-D images in VTK / 医疗卫生装备

ABSTRACT

It's required to display axial,coronal and sagittal images simultaneously of the volume data in medical 3-D visualization system.A rectangle with special color will be drawn to signify the current selected image,while the window gets the focus.This paper discusses how to draw rectangle outside the focused window by extending the class of capturing mouse and keyboard events.Results are given to verify the provided method.