Hv: A graphical user interface library for scientific and engineering applications Free

We have developed Hv, a library based on Motif and X‐Windows for use in scientific and engineering applications. Through more than 500 public functions, Hv provides for multiple ‘‘views’’ with independent world and pixel coordinate systems. Hv will perform all necessary coordinate transformations and window maintenance and will automatically provide Hv applications with the ability to print their views to postscript printers or to save their contents as encapsulated postscript files for inclusion into other documents. Applications may draw upon a rich suite of predefined graphical items or easily add their own. Examples of applications written in Hv include the single event display for the CEBAF large acceptance spectrometer (CLAS), the graphical level‐one ‘‘trigger’’ programming software for experiments using CLAS, a scientific plotter, and a simulation of theater missile defense architectures. © 1996 American Institute of Physics.