Data Analysis - The MathWorks - #51

When an axes displays three-dimensional graphics, brushing defines a region of interest (ROI) as an unbounded rectangular prism. The central axis of the prism is a line perpendicular to the plane of the screen. Opposite corners of the prism pass through points defined by the CurrentPoint associated with theinitial mouseclick andthe valueof CurrentPoint during the drag. All vertices lying within the rectangular prism ROI highlight as you brush them, even those that are hidden from view.

The next figure contains two views of a brushed ROI on a peaks surfaceplot. On the left plot, only the cross-section of the rectangular prism is visible (the brown rectangle) because the central axis ofthe prism is perpendicular to the viewing plane. When the viewpoint rotates by about 90 degrees clockwise (right-hand plot), you see that the prism extends along the initial axis of view and that the brushed region conforms to the surface.

When the same x-, y-or z-variable appears in several plots, brushing observations in one plot highlights the related ones in the others whenever the plots are linked. If the brushed variables are open in the Variable Editor, rows of data containing the brushed observations are highlighted in the brushing color there as well. For more information, see "Data Brushing with the Variable Editor" on page 2-24.