/* * SCCSID: @(#)open.c 3.0 4/22/86 */ /********************************************************************** * Copyright (c) Digital Equipment Corporation 1984, 1985, 1986. * * All Rights Reserved. * * Reference "/usr/src/COPYRIGHT" for applicable restrictions. * **********************************************************************/ /* Facility: Part of the plot package for the LA50 printer Called by: driver() Abstract: open - open the LA50 printer for graphics output The open function is responsible for initializing the variables for the LA50 Plot package and for sending escape sequences to put the printer in graphics mode. Author: Kevin J. Dunlap Creation: March 1984 Modified by: Date: By: Reason: October 29, 1984 KJD Port from PRO/V7M to ULTRIX-11 */ #include "la50.h" int xnow,ynow; /* the x and y coordinates of the */ int currx, curry; int dminx=9999, dminy=9999, dmaxx=0, dmaxy=0; int x0=0; int y0=MAXY-1; char bits[] = { 1, 2, 4, 8, 16, 32 } ;/* Bits we turn on when setting sixels */ float boty; /* the device coordinate of the bottom y */ float botx; /* the device coordinate of the bottom x */ float obotx; /* the x and y coordinates of the bottom */ float oboty; /* left corner of the plotting area */ float scalex; /* the scaling factor for x coordinates */ float scaley; /* the scaling factor for y coordinates */ openpl() { int tmpx, tmpy; boty = 0.; botx = 0.; obotx = 0.; oboty = 0.; scalex = 1.; scaley = 1.; printf("\33[5i"); /* turn on printer */ printf("\33P2q"); /* turn on graphics mode on la50 */ for(tmpx=0; tmpx < MAXX ; tmpx++) { /* Vaccum mamory, Zero the bits */ for(tmpy=0; tmpy < MAXY/6; tmpy++) bitmap[tmpx][tmpy] =0; } }