圖形變換程序設計

圖形變換程序設計概述的繪制及圖形顏色變換。一、設計要求4種可選擇的功能，按字母“y”畫一個用點組成的圓；按字母“s”畫一個用不同顏色填充的三角形；按字母“z”顏色填充的矩形；按“q”鍵退出。二、設計思想（一）、界面控制程序開始顯示一行提示信息。鍵盤輸入“y”進入畫圓子程序，輸入“s”進入畫三角形子程序，輸入“z”進入畫矩形子程序。（二）、畫圓較完算法見下圖）（90個SINθCOSθA點位置可由以下表達式確定。<畫圓算法解圖>X=SINθ*Radius+OXY=COSθ*Radius+OY由A點又可求出與其相關的三點A’,B,B’（見上圖）。（三）、畫三角形由設定的字符（“*”）作為填充三角形元素，行數(shù)增12，依此往上畫能形成三角形。三角形顏色的變換是在已畫好圖的基礎上在圖原位置重畫，但改變相應字符的顏色。（四）畫矩形（本題為（本題為下卷即可完成矩形框的顏色變換。三、程序流程圖（一）、主流程圖關鍵代碼;主程序MAINPROCFARASSUMEDS:DATA,SS:STACK,CS:CODESTART:MOVMOVDS,AXINPUT:LEADX,SYSINFO;存偏移地址到DXCALLCL_SCREENCALLDISPLAY;調(diào)用顯示子程序;鍵盤輸入MOVAH,8;鍵盤輸入功能號（無回顯）INT21H;調(diào)用DOS系統(tǒng)中斷;----------------------------------;根據(jù)AL判斷畫哪個圖CMPAL,'Y'JZCIRCLE1CMPAL,'S'JZTRIANGLE1CMPAL,'Z'JZTECTANGLE1;----------------------------------CMPAL,'Q'JEEXIT;鍵盤輸入'Q'字符，退出CALLERRORDISJMPINPUTCIRCLE1:CALLCIRCLEMOVAX,3;顯示方式INT10H;BIOSJMPINPUTTRIANGLE1:CALLTRIANGLEJMPINPUTTECTANGLE1:CALLRECTANGLEJMPINPUTEXIT:CALLCL_SCREENMOVAH,4CH;DOSINT21HMAINENDP;主程序結束（二）、子程序畫圓流程圖（三）、子程序畫三角形流程圖（寫顯存BLBL915，三角形顏色從亮藍變到亮黃。（四）子程序畫矩形流程圖四、程序源代碼RUZHANMACRO;定義宏PUSHAXPUSHBXPUSHCXPUSHDXPUSHSIPUSHDIENDM;結束宏CHUZHANMACRO;定義宏POPDIPOPSIPOPDXPOPCXPOPBXPOPAXENDM;結束宏;----------------------------------------------------------DATASEGMENT;定義數(shù)據(jù)段SYSINFODB'PLEASECHOOSETHELETTERY,S,Z&'DB'INPUTQTOQUIT','$'MYINFODB' DESIGNBYDAWNY ',0DH,0AH,'$'ERRINFODB'CHOOSEERROR!','$'SINEDW00,02,03,05,07,09,11,12,14,16;SIN01DW17,19,21,23,24,26,28,29,31,33DW34,36,37,39,41,42,44,45,47,49DW50,52,53,54,56,57,59,60,62,63DW64,66,67,68,69,71,72,73,74,75DW77,78,79,80,81,82,83,84,85,86DW87,87,88,89,90,91,91,92,93,93DW94,95,95,96,96,97,97,97,98,98DW98,99,99,99,99,100,100,100,100DW100,100MMDW?;定義操作數(shù)為字的助記符MM代表像素點的列增量（為正）F_MMDW?定義操作數(shù)為字的助記符MM代表像素點的列增量（為負）NN DW?定義操作數(shù)為字的助記符NN代表像素點的行增量（為正）F_NNDW?定義操作數(shù)為字的助記符NN代表像素點的行增量（為負）OXEQU120;圓中心的列像素OYEQU240;圓中心的行像素RADIUSDW60;圓的半徑COLOURDB2;圓邊的顏色KKDW100COUNTDB90DATAENDS;----------------------------------------------------------CODESEGMENT;定義代碼段;主程序MAINPROCFARASSUMEDS:DATA,SS:STACK,CS:CODESTART:MOVAX,DATAMOVDS,AX;置光標位置INPUT:MOVAH,2;置光標功能號MOVBH,0;頁號MOVDH,0;行號MOVDL,20;列號INT10H;調(diào)用BIOS中斷LEADX,SYSINFO;存偏移地址到DXCALLCL_SCREENCALLDISPLAY;調(diào)用顯示子程序;鍵盤輸入MOVAH,8;鍵盤輸入功能號（無回顯）INT21H;調(diào)用DOS系統(tǒng)中斷;----------------------------------;根據(jù)AL判斷畫哪個圖CMPAL,'Y'JZCIRCLE1CMPAL,'S'JZTRIANGLE1CMPAL,'Z'JZTECTANGLE1;----------------------------------CMPAL,'Q'JEEXIT;鍵盤輸入'Q'字符，退出CALLERRORDISJMPINPUTCIRCLE1:CALLCIRCLEMOVAX,3;顯示方式INT10H;BIOSJMPINPUTTRIANGLE1:CALLTRIANGLEJMPINPUTTECTANGLE1:CALLRECTANGLEJMPINPUTEXIT:CALLCL_SCREENMOVAH,4CH;DOSINT21HMAINENDP;主程序結束;----------------------------------------------------------;DSDISPLAYPROCNEARMOVAH,9INT21HRETDISPLAYENDP;----------------------------------------------------------;子程序，顯示錯誤信息ERRORDISPROCNEARRUZHANCONTIUNE:MOVAH,2MOVBH,0MOVDH,12MOVDL,30INT10HLEADX,ERRINFO;存偏移地址到DXCALLCL_SCREENCALLDISPLAY;調(diào)用顯示子程序;檢驗鍵盤狀態(tài)MOVAH,0BH;INT21HCMPAL,0JETMP;鍵盤輸入，無回顯MOVAH,07H;功能號INT21HTMP:JZCONTIUNECHUZHANRETERRORDISENDP;----------------------------------------------------------;子程序，清屏CL_SCREENPROCNEARRUZHANMOVAH,7;卷屏功能號MOVAL,0;初始化屏幕MOVBH,7;卷入行屬性，上此處為正常顯示MOVCH,0;左上角行號MOVCL,0;左上角列號MOVDH,24;右下角行號MOVDL,79;右下角列號INT10HCHUZHANRETCL_SCREENENDP;----------------------------------------------------------;子程序，畫圓CIRCLEPROCNEARRUZHAN;調(diào)用宏，保存寄存器CALLSCREEN;調(diào)用屏幕子程序MOVCOUNT,90MOVSI,OFFSETSINE+89*2COS10MOVDI,OFFSETSINEAGAIN:CALLCOMPUTE;調(diào)用計算圓邊像素點CALLWRITE;描圓邊SUBSI,2;SI與源操作數(shù)相減ADDDI,2;DI與源操作數(shù)相加DECCOUNTJNZAGAIN;ZF0跳轉CHUZHAN;調(diào)用宏，恢復寄存器RETCIRCLEENDP;----------------------------------------------------------;10H;BIOSMOVAH,0BH;置彩色調(diào)板MOVBX,0;BH為彩色調(diào)色板ID，BL為ID配套使用的顏色INT10HRETSCREENENDP;----------------------------------------------------------;子程序，計算圓邊像素點COMPUTEPROCNEARMOVAX,[SISIAX，SI++依次得到所有圓邊點MULRADIUS;AXRADIUSAXDIVKK;得到圓邊像素點的列位置MOVMM,AXNEGAX;將AX轉化為二進制補碼，以求相對應的像素點MOVF_MM,AX;AXF_MMMOVAX,[DI]MULRADIUSDIVKKMOVNN,AXNEGAXMOVF_NN,AXRETCOMPUTEENDP;----------------------------------------------------------;子程序，描點WRITEPROCMOVDX,F_MM;對應像素列ADDDX,OYMOVCX,NN ;ADDCX,OXCALLWR_DOTMOVCX,F_NNADDCX,OXCALLWR_DOTMOVDX,MMADDDX,OYCALLWR_DOTMOVCX,NNADDCX,OXCALLWR_DOTRETWRITEENDP;----------------------------------------------------------;子程序，寫像素WR_DOTPROCMOVAH,0CH;寫像素功能號MOVAL,COLOUR;顏色值MOVBH,0;頁號INT10HRETWR_DOTENDP;----------------------------------------------------------;子程序，畫三角形TRIANGLEPROCNEARRUZHAN;保存寄存器MOVBL,9;字符屬性，暗藍GOON:MOVCH,1;1代表走，0代表暫停COLOR:MOVAH,0BH;檢驗鍵盤狀態(tài)INT21HCMPAL,0JNZAACMPCH,1JNZMOVCX,1;顯示字符個數(shù)MOVAH,2;功能號MOVBH,0;頁號MOVDH,6;行號MOVDL,36;列號INT10HHUATU:MOVAH,2;置光標INT10H;MOVAH,9;功能號MOVBH,0;顯示頁MOVAL,2AH;字符，'*'INT10HINCDH;行數(shù)加1，DOS窗口向下畫DECDL;列號減1，以便形成三角形ADDCX,2;每畫一行，顯示字符數(shù)加2個CMPCX,21;畫完為止JNZHUATUINCBLCMPBL,15JNZGOONAA:MOVAH,7INT21HCMPAL,'Q'JNZBBJMPEEBB:CMPCH,0JZCCMOVCH,0JMPCOLORCC:MOVJMPCOLOREE:CHUZHAN;恢復寄存器RETTRIANGLEENDP;----------------------------------------------------------;子程序，畫矩形RECTANGLEPROCNEARRUZHAN;保存寄存器;設置顯示方式;MOVAH,0;MOVAL,12H;INT10H;置光標初始位置MOVCX,1MOVAH,2MOVBH,0MOVDH,6MOVDL,6INT10H;光標右移，向右畫RIGHT:MOVAH,2;置光標位置INT10HMOVAH,9;9MOVAL,2AH;字符，'*'MOVBL,0FAH;字符屬性，背景為白，前景為紅;MOVCX,6INT10HINCDL;列數(shù)增加CMPDL,20JNERIGHT;當ZF為1時光標繼續(xù)右移，為0時跳轉JMPDOWN;光標下移，向下畫DOWN:MOVAH,2INT10HMOVAH,9MOVAL,2AHMOVBL,0FAH;MOVCX,6INT10HINCDHCMPDH,12JNZDOWNJMPLEFT;光標左移，向左畫LEFT:MOVAH,2INT10HMOVAH,9MOVAL,2AHMOVBL,0FAH;MOVCX,6INT10HDECDLCMPDL,6JNZLEFTJMPUP;光標上移，向上畫UP:MOVAH,2INT10HMOVAH,9MOVAL,2AHMOVBL,0FAH;MOVCX,6INT10HDECDHCMPDH,6JNZUP;**********************************************************;COLOUR2:MOVBH,0MOVBL,0CHANGE2:MOVINT21HCMPAL,0JNECCMPBL,0JNECHANGE2MOVAH,7MOVAL,14MOVCH,7MOVCL,7MOVDH,11MOVDL,19INT10HCALLDELAY;調(diào)用延時子程序ADDBH,0FHCMPBH,0F0HJNZCHANGE2JMPCOLOUR2C:MOVAH,07HINT21HCMPAL,'Q'JNEDJMPED:CMPBL,0