Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.atnf.csiro.au/computing/software/gipsy/sub/pgexist.dc2 Дата изменения: Wed Oct 31 05:16:09 2001 Дата индексирования: Fri Jan 16 18:18:28 2009 Кодировка: Поисковые слова: вечный календарь

Function: PGEXIST

Purpose: Test whether a Hershey symbol, with index between
1..3000, exists

Category: GRAPHICS

File: pgplot.src

Author: M.G.R. Vogelaar

Use: INTEGER PGEXIST( N ) Input INTEGER

Description: PGPLOT uses Hershey symbols for two `primitive' operations:
graph markers and text. The Hershey symbol set includes
several hundred different symbols in a digitized form that
allows them to be drawn with a series of vectors (polylines).
The routine PGEXIST has an integer argument between 1 and
3000. It returns 1 if the symbol exists and 0 if it does
not exist.

Updates: Dec 23, 1994: VOG Document created.
Oct 12, 2001: JPT Fixed common block layout.