PLOT 3D: A Multipurpose, Interactive Program for Plotting Three Dimensional Graphs

摘要

PLOT3D is a general purpose, interactive, three dimensional display and plotter program. Written in Fortran-77, it uses a two dimensional plotter software (PLOT-10) to draw orthographic axonometric projection of three dimensional graph comprising of smooth surface or cubical histogram, in any desired orientation, magnification and window, employing throughout highly accurate hidden lines removal techniques. The figure, so generated, can optionally be clipped, smoothened by interpolation, or shaded selectively to distinguish among its different faces. The program accepts data from an external file, or generates them through built-in functions. It can be used for graphical representation of data such as neutron flux, theta(x,y) in form of smooth surface, even if available data are very few in number. It is also capable of drawing histograms of quantities such as fuel power in a reactor lattice. Listing of the program is given. (Atomindex citation 17:023268)