逐點比較法直線插補c語言程序

一、 逐點比較法插補程序#includeHconio.hn#iiiclude”graphics.h"#iiicludeMprocess.hn#defiiieNi_ciicle0#defiiieShun.circle1voidvoiddiaw_Base_circle();voiddiaw_cabu_ciicle();voidclose_graph();voidacrroods();staticfloatxO.vO;voidliiie_cabu(),draw_line().draw_lme_cabu();voidlme_cabu() /*此函數(shù)控制直線插步兩次*/{mti;miCgraph();sleep(l);foi(i=0;i<2;i++){line(0420300J20);outtextxy(310,120；,ZH);lme(l00J0,100.300);outtextxy(110300；*Xn);outtextxy(90J30；,On);draw_line();if(i==o)draw_luie_cabu(6);elsediaw_liiie_cabu(2);gotoxv(50,5);getch();cleardevice();s亡tcoloi(WHITE);}}_voiddrawJmeQ/*畫直線*/{line(100,120,600,450);textcoloi(YELLOW);duecMdeo=0;gotoxy(45,5);cpiiiitf(HLmefiom:X0Y0Z0n);gotoxy(45,6);cprmtf(HLmeto:X500Y0Z330J;gotoxy(45,7);cprmtf(HUnits:PixelH);gotoxy(45,8);cpriiitf(HLmenow:”)；}voiddiaw_lme_cabu(mtstep)/*關(guān)鍵的直線插補函數(shù)*/mtXe=600.Ye=450;floatFiilXih=100,Ym=120;setcolor(RED);moveto(Xin.Ym);while(Xin<=Xe&&Ym<=Ye){Fm=(Ym420)*(Xe400).(Xin400)*(Ye-120);if(Fm>=0)Xm=Xm+s忙p;elseYm=Ym+s忙p;lineto(Xin,Ym);gotoxy(55,8);pnntfCX%3?0fY0Z%3.Of,Xin-100.Ym-120);delav(llOO);}}/*圓插補部分的函數(shù)區(qū)*/voidinit_graph() /*圖形系統(tǒng)初始化*/{iiitgdrive=DETECT.gmode;iiiitgiaph(&gdrive,&gmode,"");cleaideviceQ;}voidacrroods() /*屏幕中心坐標(biāo)*/{x0=getniaxx()/2;y0=getmaxy()/2;}_voiddiaw_Base_circle() /*畫圓及寫參數(shù)*/{line(x0-200,y0,x0+200,y0);outtextxy(x0+220,y0/,Zn);lme(x0.v0-l80,x0,y0+l80);outtextxy(x0+10.y04-l80/XH);outtextxy(xO-l0.v0+10「CT);circle(x0,y0,150);textcoloi(YELLOW);direct\rideo=0:gotoxy(46,2);cprintf{nCirclestail:X0Y0Z150H);gotoxy(463);cpiiiitf(nCircleend:X0Y0Z150H);gotoxy(46,4);cpimtf(nUmts 〔Pixel”)；gotoxy(46,5);cprmtf(nCirclenow:");}voidclose_graph() /*關(guān)圖形系統(tǒng)*/closegraphQ;}voiddiaw_cabu_circle(iiitsstep.mtDirectory)/*關(guān)鍵的圓插補函數(shù)*/{iiitflag=0;floatFm,Xm.Ym;Xin=x0+150;Ym=yO;moveto(Xin,Ym);setcolor(RED);while(l) 嚴分象限，順圓和逆圓討論*/Fm=(Xin-xO)*(Xin-xO)+(Ym-\7O)*(Ym-yO)-l50*150;/*圓判斷公式*7if(Fm>=0){if(!Directory){/*逆圓判斷*/if(Xin>=x0&&Ym<=v0){if(flag)break;/*if語句判斷象限，以下一樣*/else Xin=Xm-sstep;}if(Xm<=xO&&Ym<=y^){flag=l;Ym=Ym+sstep;}if<XiiK=x0&&Ym>=y°)Xm=Xm+sstep;if(Xm>=x0&&Ym>=yO)Ym=Ym-sstep;}else{ /*itisDuectoiyselse*/if(Xin>xO&&Ym<yO)Ym=Ym+sstep;if<Xm<=x0&&Ym<=yO)Xin=Xin+sstep;if(Xm<x0&&Ym>v0){flag=1;Ym=Ym-sstep;}

if(Xm>=x0&&Ym>=yO){

if(flag)break;Xm=Xm-sstep;}}else{ /*itisFnTselse*/if(!Directory){if(Xm>xO&&Ym<v0)

}if(Xmv=x0&&Ym<=y^)}if(Xm<=x0&&Ym>=yO)Ym=Ym+sstep;else{if(Xm>=x0&&Ym>=yO)Xm=Xm+sstep;if(Xin>xO&&Ym<yO)Xm=Xm+sstep;if(Xmv=x0&&Ym<=y^)Ym=Ym-sstep;}if(Xmv=x0&&Ym<=y^)}if(Xm<=x0&&Ym>=yO)Ym=Ym+sstep;else{if(Xm>=x0&&Ym>=yO)Xm=Xm+sstep;if(Xin>xO&&Ym<yO)Xm=Xm+sstep;if(Xmv=x0&&Ym<=y^)Ym=Ym-sstep;if(Xm<=x0&&Ym>=vO){flag=1; Xin=Xin-sstep;}if(Xin>=x0&&Ym>=yO){iRflag)break:elseYm=Ym+sstep;}}lineto(XiiKYm);gotoxv(58,5);prmtf(MX%3.0fY0Z%3.Of^Ym-yO^Xm-xO);delay(SOO);voidcircle_demo(intDiiectory) /*控制圓插補兩次*/mti=O,sstep;imyaph();sleep⑵;acnoods(&xO,&yO);fdr(i=0;i<2;i++)diaw_Base_circle(150);if(i==0){sstep=6;diaw_cabu_ciicle(sstep.Directoiy);}else{sstep=l;diaw_cabu_ciicle(sstep.Directoiy);}getch();cleardeviceQ;s亡tcoloi(WHITE);}}/*圓插補部分的函數(shù)區(qū)結(jié)束*/niam()/*主函數(shù)負貴寫封面和函數(shù)調(diào)用*/{iiitchoice=0;mit_giaph();wliile(choice!=4){setfillstyle(l.RED);bar(2OO.30,400.80);setcolor(GREEN);settextstyle(3,0,10);outtextxy(220,50；,DEMOPROGRAMBYP.Y.FH);setcoloi(WHITE);settextstyle(O,O,l);outtextxy(200,120/1.Linedemo.");outtextxy(200,140/2.Shun_Circledemo.");outtextxy(200,160/3.NLCiicledemo.”)；outtextxy(200,180/4.Quittheprogram.n);outtextxy(160,200/Pleaseenteryourchoice/1);gotoxy(46,13);scaufp%d”,&choice);