-READ ME  CONREC IZC1]CTEST PZSGGRAF1 IZCM#TIGRAF2 IZCpGRAFIX SZS~ GRAFTYP IZCtLISTING2PZS 3MESH PZS PLOT CZM2UPOTENT PZS TSQUARES PAS7(TRIANGLEIZC}_TRIANGLEPZSF This is version 1.1 of some contour plotting routines. The previous version of CONREC only drew lines on the screen. This version has been extended so that it shades the contours. Nothing elaborate, no dithering, Gouraud shading or anything fancy -- maybe later. This particular package is for an Apple //e running a PCPI card with Rod Pederson's graphics programs it can easily be changed to run on a PC for example. The package PLOT33 by T.E. Speer has been drawn on heavily to allow output of the pictures to a plotter - Epson compatible. For info on how PLOT33 works, you should get the library. It's on CRS and if it's not on ICBBS then I will upload it. The programs also allow characters to be drawn on the Apple screen, or any other one for that matter, using the routines from PLOT33. All you have to do is replace the point and line drawing routines in the appropriate files. There is some barebones support for a Postscript laser printer. I have tried these routines on an AT clone using Borland's Graphix Toolbox. They work fine. This explains some of the weird names for variables; Borland chose them, not me. To get the laser printout I do copy laser.out+laser2.out lpt3 I added the Postscript bits at home. I don't have a laser printer at home but this stuff is running on an AT that is networked to a QMS. If anyone needs any help with that, I can pass along any missing bits. Most people will want to rip the Postscript bits out. Someday I will add support for an HP plotter. It should be easy with HPGL and a plotter that does fills but again I don't have one at home and people keep expecting me to work at work!! To make the printer go, you have to have the ability to handle 8bits with the version of PLOT33 in this library. PLOT33 can be altered but that's another story. This version works with Epson compatibles as far as I know. The programs create files *.vec and then you just say plot *.vec and off you go. To get my printer interface to work I must send ^YH^YT to allow the high bit and turn on the transparent mode. Others may be different. Next comes hidden lines. I hope this is useful to someone. 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Ie@t4c &`i7Nq3 n2J@3h "9 GA o:fyT@f浘 + ȤzqC@q]FQ9jnLXPi*؜THIA&c.@Qs:DHt 9fјb4G#!idX9XAé!`cCɦbp\c?# y[@g!9uBy-V ZUi\5Ѐ(XstT=HoV|Sres%؎&sbvF' iaoDaCGNFV}UCGA ri$ C'jmAƕdsiQi:I` e^&!d"QmD1l=@fQQ1a@BuXF[ ThV7pŚQʢjbJlpIa@jb ,~l lj⧲kbi⇞͵iY@DF,Z*ܗ1+;+V'V!}Gd_ Óa whT9dQ!_I݃@( - /췡R=xd4i>^+Uuhޫ놠+c.d V]aLQ@sG  F+>߿ B w߻Q?g z 2v̺Z^);DP- 8>@ |םVR+DHXMl) *߇2;(h? #Y<^[5B\N*;<^7 p§: Xf WAM c;voX2`)8y` i`%4CpitˀQ 5hD݃2l (FLuzCQIJL\fB΍Ң@Ϡg '(e&Aq >h) 1His:M fE-2mٿ8deH7BQs0O٦ԌvDL8s > rYK !s7(H.Z1{s"eL!@]L) `S : PrЂ` 6,ÝD(ajp8 ՐsT) ;&ފ\d)rVH[1 ;\IY^DBeoN`҇t } 9gu; e iHJ$؟2 E>t"'`i*ihɩC7ÁrEM %4DHE A1 HNprogram Squares; {$I graftyp.inc} {$I DHR.INC} {$I graf1.inc} {$I grafix.sys} VAR i:integer; p,q,xa,xb,xc,xd,ya,yb,yc,yd,xxa,xxb,xxc,xxd,yya,yyb,yyc,yyd: real; {-----------------------------------------------------------------------} Begin {Start of Test program} {-----------------------------------------------------------------------} Postscript:=False; Plotter:=False; Printer:=false; grafix; grafmode(bw); clrgraf($00); P:=0.95; q:=1-p; Xa:=100;Xb:=459;Xc:=459;xd:=100; ya:=0;yb:=0;yc:=191;yd:=191; Initgraphic; for i:=1 to 50 do begin Drawline(xa,ya,xb,yb); Drawline(xb,yb,xc,yc); Drawline(xc,yc,xd,yd); Drawline(xd,yd,xa,ya); xxa:=p*xa+q*xb; yya:=p*ya+q*yb; xxb:=p*xb+q*xc; yyb:=p*yb+q*yc; xxc:=p*xc+q*xd; yyc:=p*yc+q*yd; xxd:=p*xd+q*xa; yyd:=p*yd+q*ya; xa:=xxa; ya:=yya; xb:=xxb; yb:=yyb; xc:=xxc; yc:=yyc; xd:=xxd; yd:=yyd; end; Repeat until keypressed; text; End. vTRIANGLE.INC  QH4P9fS!eFPi0(1dePXcl $cI:$S9)`h@*{bh0!j9sDLp8G|Lo:Lœs1Č(s2ӎ %{7T͢ o_[hV4׊fSے9` %B-{*X"T0aQ2qtfpk5FH C,$@o3Wuv]6t0 4aCEC)a,X~G$0rTFם ~_ѝ~G` a0La^MH%B6 `h(A8{G4d0(f{hz!L!L Q>P% nfA=KA+Xc1AGIiEl0 ]tI^z:D)O9qcUor~h@GhP5DQ1!PYC KrBFu:ihGB]yFǔu #ie|`(BOD%+`EE䑒00s&#Yy#{.? iO6StkR.L#*jc!aMSpap1B옴)wXaB,UJWD 0G   P`Hy(^} EB |[%Հ\ǠN ͚9M H)Mi }!-}́`]-hjQa*u*mOJJjAk3]d:Tj러0O6uWV gJ-8Cuය2iCy T!Vj\`dITW|ܧ`x 1|8A">kא[`Z RY֩~&Ac ދp 0x k͎BbIl(9٥Agn~q{IipeaNգ@ , BIm큽{pøfϻ{/s"g`D#f(7 @)jOa@H.=f,2PBܝ>(Regt]k(ubJ`Ca:ʕ1sx ܎S`*ʆC9)D'sɑ16i dseۇtܙ,U yi6&1[Xo=\PPTh5BsqQ'xVqu79 8lԾ[iYbV}+u1EAHpk$kxX0'rp>0\h=R/ׅ5tϗ elmYʼn=v븷k ^3s{&q Ȋ)N\}&[f\4)œo\(.~(:hBcMxYؙeBu91gܜ T!q>wG# ȽhgO͠ŷu^{QvW# Ze ̇S\BaAAòvfVyծ_d„)C87ttr) +,j\*҆ɂ``OG  2tNwgetЃP(R_Тw y+JKW !9w ]F۵+ȐԄFI7w(w",7>wˆvvvz.ѺĄ?A<1p,~T<o%s&Bvp3a&gG*b/7@|Q"=bD@V|w%hP}^(B,(D#Rw}̄+g+=D7 m7Vn_zYHc7qr[y|80hp>b!VgnhDK6{'#$7e@[(x>4򌈗YUE7X]cȄ,o~a$/)9K05VӯqnW "'&w~xK"RyM(p q@06@o>Ҟ x4瞐y5Οy18"x& 2BPy.{J-~19dև)cʛǻpGRmNJgOq?ddnNVqZã5Q$a(hcq)+`byQ#.wq+ 0vTRIANGLE.PAS (s *&qeAGt9(1LSD Ąf:NI2MBAH\I'sY1iZ.9f3J 2P`, Ef,,K7t )H$Ƞ(: s)_!C Rz @gKI@o3B:merR4s1NAa6btœ n ۽x,&y(18Q To90Cьt O4n