在VC++6.0中實(shí)現(xiàn)直線的掃描轉(zhuǎn)換算法

1、實(shí)驗(yàn)序號(hào)：2寧夏師范學(xué)院數(shù)學(xué)與計(jì)算機(jī)科學(xué)學(xué)院計(jì)算機(jī)圖形學(xué)實(shí)驗(yàn)報(bào)告實(shí)驗(yàn)項(xiàng)目名稱：直線的掃描轉(zhuǎn)換學(xué)號(hào)2014210677姓 名王艷艷專業(yè)、班級(jí)14計(jì)本一班實(shí)驗(yàn)地點(diǎn)文科樓206指導(dǎo)教師羅曉麗時(shí)間2017.3.17、實(shí)驗(yàn)?zāi)康?學(xué)會(huì)使用mfc能夠運(yùn)用直線的三種掃描算法即數(shù)值微分算法（ddat法）、 中點(diǎn)畫線算法和bresenham畫線算法繪制直線，并熟悉掌握制作過(guò)程。二、實(shí)驗(yàn)環(huán)境：windows 7vc+ 6.0三、實(shí)驗(yàn)內(nèi)容:打開(kāi)vc6.0,點(diǎn)擊新建一 工程一mf（appwizard exe,創(chuàng)建項(xiàng)目名稱（隨便寫），確定位置，然后點(diǎn)擊確定files projects workspaces other d

2、ocximients總 atl com appwizardtlclusicr rcsoutlc type wizardcustuui appwiizard?id?iubase pm|ect-tdevstiirlin add-in mrardfxtended scored ptor wi7arriftlsapi exteneiam wizardmakefile弟mfc activex contrglwizardmfc appwcm (dll|utility projectwin32 applicatiunwin5? cftiftnlp apfklifinnwinjl? 3ynnmic-l int

3、 i ihriywin37 statir i ihraryrrojectfisme：wangynysnlocauon:rwangyanyan療 create mew workspacec rn ninftnt wnrkrpficr depenjciicy ufrin3el 帝 tfmrms：0wirj2okcancel選擇創(chuàng)建的應(yīng)用類型一 單文檔一 完成點(diǎn)擊確定dda# 法:aiwizanj will cfriatt a ntw skrkitm pvojtct wmi) the lolluwifig stjtcmicalluns：pfj|ii4tiuii type of vangyanyfin

4、；single docume nt interlace application larqetinq： win32m-c app iviidrc - strp 1中文簡(jiǎn)體，+latpwzchs.dm二einishnhw project informctioifc alia res：* in it al toolbar in main framet initial slalus bar in rnjiin frame* printing and print preview suppart in view+ 3d cnnlrols* uses shared dll inruplenneritatmn

5、 |mfc42.dll+ activex cnntrnls support enabledi localizablc text in.中文僻體n中國(guó)ptnjzt nirerdnry： t：iy/anciyanyaftwhal jangtihj)* wniild yon like 叩ur rouicrs in? qackc-llllcltu tit lienled:application： cwanqyanyana(ip in wangyanyan.tl and wangyanyan.cppframt： cmiilnfmme in mdlitfrm.li and makfrmxppdociimt

6、nt： cwangyany4nooc in v/ahgyan/andoc.h andwangyanyanooc.cppview： cvz4iiqyanyar)vicw in wangyannvicw.h and wfingyanyonvicwxppcdrilc iwhattype 曲 epptication would you like to crcfitc?q dacmnientfview aichltecture supurt? siiiyic dvcunicnt,ii i-thirrr hi-in rr ne multiple docomerrts yialug basbd添加成員函數(shù)：

7、1展開(kāi) wangyanyanclasses 右擊 wangyanyanviewr選擇 add membefuntion (添加成員函數(shù))一 函數(shù)類型定義為void ,函數(shù)描述為：ddaline點(diǎn)擊確定ix-、 * cmnimframie-1b cwangysniyiii 卻p-聽(tīng)；cw也鯉舅jbmho呢 - 1 cwangyonyfimvicw , jglobeh2 .展開(kāi) wangyanyan classescwangyanyanview在 ddaline ()函數(shù)里添加 形參 int x0,int y0,int x1,int y1,int color,cclientdc & dc叫l(wèi)u c

8、udiiufjdiijjriiiulev: :ddft_llrieclnt xo.lut g.liil x1 .lril .int culur .cclivnloc & dcj)3 .雙擊cwangyanyanview在public中添加代碼：void cwangyanyanjview:ddaline(int x0,int y0,int x1,int y1,int color,cclientdc & dc);丁 cwmbciyatiyiiiduc, t c：whngiyanynnvifw, asscrifvalidll-t cwangyaryanvlf記住最后加分號(hào) / gratians pu

9、blic: |ud1i cilangi/anyan:zbbaiine(imt xilnt fipilint x1ipinttnloik dt)；，/ 阪/ classulzard qenerat例n ulrtual functian ouerrtd /白f#_ui fttualcclidiiyijidiiiydnulu)4 .展開(kāi)cwangyanyan雙擊ondraw-添加代碼：cclientdc dc(this);ddaline(8,12,20,20,rgb(255,145,200),dc);9 bcwocumemjq 0nbeginphntinp 4r0ndrawcdc 堂d氣，onend

10、printingc 吊，onprepareprintin precreatewindovi globalsuoid cngyantjinuieiu: :ondrawccdc* pdc) oc* pdoc = getdocunent();aserl_uald(pdoc)： todo: add draw code for native data here ggllentdc dc(this);ddalin9&i12i2o,?o,rcb tdc;5 .雙擊ddaline,在函數(shù)體內(nèi)編寫如下代碼：void cdwangyanyanview:ddaline(int x0,int y0,int x1,in

11、t y1,int color,cclientdc & dc)cpen newpen(ps_solid,1,color);dc.selectobject(&newpen);int x,dx,dy,y,k;dx=x1-x0;dy=yi-y0;k=dy/dx;y=y0;for(x=x0;x cunlt (tv，叫口占吸*加y習(xí)介典e：山日七“仙*門門 / ritn-debtiy 七卜51。1工lnllte (ftske r h jx iinpwl 工i lu b miuirlf ftllhit ik_clast若蟲gqyii jhi ml) j)；rptwrn (cvanqyu niyahdcr*)

12、h judar iiwh t ：fcndaf /.cebug/ / /j/ / /j/ 3/ cudn jny juu is-u iw工dgi h jradii vfewii rt fgn叫rnqfwhhplb tu0 linpinr kd.int ywolfit xl nt *irat eol*r+cclientl)c % de 亡fem b4rm|je wddw lgl j m t f 即性嗅 5 nlot *4 叫中淖；dx=h：1 -xli；njf=jfi-y9；y 妙：formss &；kcwangyanyanview 在 midpointline函數(shù)里添加形參 intx0,int

13、y0,int x1,int y1,int color,cclientdc & dcft v tan0ar 7ru ti ddla_lliie|infl xtl. uim_unc|) dumplcidumpcon mi .midpainll intq際 onlhcginrintiin g|1t ondmmcdc xpdvoid curiqinamiview: ;hhidpq ntlinp(i nt xoi，int opint m1 rinnt yl, i nt cold:un i in ovaiiq.1 ini|.hiuii!v;ilpnini lij ni j nt yi|t i nl n 1

14、 f i ni hini i nr tcc i fpitnc 匕/ durrirt/ classwizard generated vlhtiial ifvinctlon dvarrldes4 .展開(kāi) cwangyanyanview- 雙擊 ondraw-添加代碼:midpointline(20,15,200,485,rgb(80,120,255), dc);* idumpcdumpcon getdocumento * midpdintlinepnt) * mmpolntuflcqonbcgtnprintiny|i $ ondrircdc 加方 % onendprinting(c 節(jié)，on pr

15、epare printin precreatewindo*pdoc - cctdcument();assert向 id(pdoc);/ to&o: add dram code for natiue data here cclientdc dc(this);口ur 一 line(8,12,20,2m,kgn(2s5,15,2(i0),nc);hupdlbtllne2ob15,20t|bms,rib(b8r 120,255 , dc);5 .雙擊midpointline、在函數(shù)體內(nèi)編寫如下代碼:cpen newpen(ps_solid,1,color); dc.selectobject(&newp

16、en);int a,b,delta1,delta2,d,x,y;a=y0-y1;b=x1-x0;d=2*a+b;delta1=2*a;delta2=2*(a+b);x=x0;y=y0;dc.setpixel(x,y,color);while(xx1)if(d0)x+;y+;d+=delta2; elsex+;d+=delta2;dc.setpixel(x,y,color);噂 i.wb(miyiinyaiivi.d da_uneiir)t xqn .dcaunel，u ump|cdimipcon gduocumcnt* hhjpmmlemn” .mmpmml lri d|)- oribcgin

17、finlinglf .ondirjwfcdc *pd 鼻 onitndiprinilng|(；c* dinlrrepardprihlin prccrcalcwifitlciiir lj glubnhvoid cw.angyani|anuieu:midp!ntl 1 ne(intlio,int hl yfpimt cdidit ,cclifntdc & de) djm rewpe a (l l d p 1tc n 1 nr);dctltctibjectf &ntfin |;int a ndf ltal meltaz.* .酣,y eb-nli-xw：2,邛 b;del u1二冷箝delu2=2*

18、 c+unilc.ftpn nfi (xvyi|.i:o)dr)i;(m* ； u*j 口* l 右擊 cwangyanyanviewr 選擇 addfuntion ,函數(shù)類型定義為 void ,函數(shù)描述為：bresenham line點(diǎn)擊確定2 .點(diǎn)擊 classes cwangyanyanview 在 bresenham_line 函數(shù)里添加形參 intx0,int y0,int x1,int y1,int color,cclientdc & dcvuld止xl f hit j nl colnr tccl i pntdc a dr)3 .雙擊cwangyanyanview在public中添

19、加代碼:void cwangyanyanview二bresenham_line(int x0,int y0,int x1,int y1,intcolor,cclientdc & dc),最后加分號(hào) ： cw.叫 l.i3* 1 rmiw4liinmiidpiujliy fi逑明近/ #一tjim kipt eibmtliratot br &卜工id則| lyiifitftjst nlpifet 川口4 crlr4mifa|k 1 雙擊ondraw- 添加代碼:bresenham_line(65,12,400,450,rgb(20,180,250), dc); r cpwivirto admirtvali nrrrsruh* brescrih* .cpwwlw ”科稠m ddahneii doaimq imp(口 m gciddcub . midpt inn. midpaintl r unurqintr ontndptuifunilu/uithiihhhitfthitutiuu/iiithfihf ff cfv iview old cfwjuietf ： ：onfirjiiidoce