1. NAME AND TITLE

PICTURE: Combinatorial Geometry Printer Plotting.

2. CONTRIBUTORS

Battelle, Columbus Division, Columbus, Ohio.

Lawrence Livermore National Laboratory, Livermore, California.

3. CODING LANGUAGE AND COMPUTER

Fortran 77; IBM PC or Compatible.

4. NATURE OF PROBLEM SOLVED

Picture generates plots of two-dimensional slices through the three-dimensional geometry described by the combinatorial geometry (CG) package used in such codes as MORSE and QAD-CG. These plots are printed on a standard line printer.

5. METHOD OF SOLUTION

Several different ways are available to obtain a two-dimensional slice through the geometry. The geometry ray tracing capability is tested by forcing the geometry package to execute the routines and logic of the Monte Carlo random walk or kernel integration algorithms.

6. RESTRICTIONS OR LIMITATIONS

None noted besides those listed in the input description.

7. TYPICAL RUNNING TIME

The sample problems run in a few minutes on the IBM PC.

8. COMPUTER HARDWARE REQUIREMENTS

PICTURE is operable on an IBM PC with 640 K memory. The IBM Professional version requires an 8087 math coproccessor

9. COMPUTER SOFTWARE REQUIREMENTS

IBM Personal Computer Professional Fortran, Version 1.0, or Microsoft Fortran Version 3.31 is required for compilation.

The code was run at RSIC under PC DOS 3.1.

10. REFERENCES

Appendix B of the CCC-307/QAD-CG manual.

README.DOC file on diskette.

11. CONTENTS OF CODE PACKAGE

Included are the referenced documents and two (360K) DOS diskettes are required for both IBM and Microsoft versions.

12. DATE OF ABSTRACT

January 1987.