Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.atnf.csiro.au/computing/software/gipsy/sub/pgstbg.dc2 Дата изменения: Wed Oct 31 05:16:18 2001 Дата индексирования: Fri Jan 16 01:19:27 2009 Кодировка:

Name: PGSTBG

Purpose: set text background color index

Category: GRAPHICS

File: pgplot.src

Author: T.J. Pearson

Use: see description below.

Description:

SUBROUTINE PGSTBG (TBCI)
INTEGER TBCI

Set the Text Background Color Index for subsequent text. By default
text does not obscure underlying graphics. If the text background
color index is positive, however, text is opaque: the bounding box
of the text is filled with the color specified by PGSTBG before
drawing the text characters in the current color index set by PGSCI.
Use color index 0 to erase underlying graphics before drawing text.

Argument:
TBCI (input) : the color index to be used for the background
for subsequent text plotting:
TBCI < 0 => transparent (default)
TBCI >= 0 => text will be drawn on an opaque
background with color index TBCI.

Updates: Oct 16, 1998: JPT automatically extracted from source.