bg.h

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· C头文件 代码 · 共 40 行

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/* * @(#)bg.h	4.1	(ULTRIX)	7/2/90 * * Modification History * * 	April-11-1989, Pradeep Chetal *	Added changes from 4.3Tahoe BSD for lots of new drivers *//* * Copyright (c) 1980 Regents of the University of California. * All rights reserved.  The Berkeley software License Agreement * specifies the terms and conditions for redistribution. * *	@(#)bg.h	5.1 (Berkeley) 4/30/85 *//* * Displays plot files on a bbn bitgraph terminal. */#include <stdio.h>#include <math.h>#define ESC	033#define PI	3.141592659/* The graphics address range is 0..XMAX, 0..YMAX. */#define XMAX	768#define YMAX	1024#define scaleX(xi)	((int) ((xi - lowx)*scale +0.5))#define scaleY(yi)	((int) ((yi - lowy)*scale +0.5))extern int currentx;extern int currenty;extern double lowx;extern double lowy;extern double scale;

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