Selection of objects in some versions of Geomview is more precise than in others. Occasionally, selection of one vertex, for example, will yield another. Selection of a facet results in a yellow box being placed at the Picked Point and cyan boxes being placed on the vertices of that facet. Selection of a facet, edge, or vertex causes the corresponding box to become bright blue. The Picked Point is the point that was selected by right-clicking the mouse.
Reference is a feature that allows distance and angle between two points to be computed.
One point is set as the reference point, and thereafter, the distance is displayed from the Reference point to the Picked Point . After selecting a reference, the distance to the picked point will be displayed to the right of Set, and the angle between the last picked feature's vector and the current one will be shown. For faces, the defining vector is a normal, for edges a tangent, and for corners, the vector from the origin. Downloading and Installation Measure is a module for use with Geomview . As such, it is useless unless Geomview is installed.