In Parallel Coordinates, each dimension corresponds to an axis, and the N axes are organized as uniformly spaced vertical lines. A data element in N-dimensional space manifests itself as a connected set of points, one on each axis. Points lying on a common line or plane create readily perceived structures in the image. In generating the display of parallel coordinates in XmdvTool, the view area is divided into N vertical slices of equal width. At the center of each slice an axis is drawn, along with a label at the top end. Data points are generated as polylines across the N axes.