The program xv_good is a Graphical Object-Oriented eDitor. One can edit, insert, delete points of a graph by using the mouse.
One very important feature of this program is the possibility to run all gr modules from inside the program. The result is returned to the program and immediatly shown on the screen. This allows to configure the program to any purpose by adding extern gr modules!
xv_good is right now only available for the XView Window System and SUN's own XGL-Graphics Library.