Isodose plotting for pen plotters
Journal Article
·
· Med. Phys.; (United States)
A general algorithm for treatment plan isodose line plotting is described which is particularly useful for pen plotters. Unlike other methods of plotting isodose lines, this algorithm is designed specifically to reduce pen motion, thereby reducing plotting time and wear on the transport mechanism. Points with the desired dose value are extracted from the dose matrix and stored, sorted into continuous contours, and then plotted. This algorithm has been implemented on DEC PDP-11/60 and VAX-11/780 computers for use with two models of Houston Instrument pen plotters, two models of Tektronix vector graphics terminals, a DEC VT125 raster graphics terminal, and a DEC VS11 color raster graphics terminal. Its execution time is similar to simpler direct-plotting methods.
- Research Organization:
- University of Texas Medical Branch, Department of Radiation Therapy, Galveston, Texas 77550
- OSTI ID:
- 5367035
- Journal Information:
- Med. Phys.; (United States), Journal Name: Med. Phys.; (United States) Vol. 12:5; ISSN MPHYA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Graphics library for real time display and data analysis. [ENZLIB, in FORTRAN for PDP-11 using RSX-11M operating system]
PLTLIB: graphics library for Tektronix 4025 and 4027 terminals. [For PDP-11 and LSI-11 computers]
RT-11 FORTRAN subroutines for X-Y plotting on Hewlett-Packard 7470A/7475A graphics plotters
Technical Report
·
Mon Jan 14 23:00:00 EST 1980
·
OSTI ID:5401344
PLTLIB: graphics library for Tektronix 4025 and 4027 terminals. [For PDP-11 and LSI-11 computers]
Technical Report
·
Sat Jan 24 23:00:00 EST 1981
·
OSTI ID:6561657
RT-11 FORTRAN subroutines for X-Y plotting on Hewlett-Packard 7470A/7475A graphics plotters
Technical Report
·
Fri Aug 01 00:00:00 EDT 1986
·
OSTI ID:5063634