Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.atnf.csiro.au/computing/software/gipsy/sub/grclip.dc3 Дата изменения: Wed Oct 31 05:15:54 2001 Дата индексирования: Fri Jan 16 01:22:01 2009 Кодировка:

Name: GRCLIP

Purpose: clip a point against clipping rectangle

Category: GRAPHICS

File: pgplot.src

Author: T.J. Pearson

Use: see description below.

Description:

SUBROUTINE GRCLIP (X,Y,XMIN,XMAX,YMIN,YMAX,C)
REAL X,Y
REAL XMIN,XMAX,YMIN,YMAX
INTEGER C

GRPCKG (internal routine): support routine for the clipping algorithm;
called from GRLIN0 only. C is a 4 bit code indicating the relationship
between point (X,Y) and the window boundaries; 0 implies the point is
within the window.

Arguments:

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