上機(jī)實(shí)驗(yàn)報(bào)告1

上機(jī)實(shí)驗(yàn)報(bào)告計(jì)算機(jī)圖形學(xué)實(shí)驗(yàn)題目班級(jí)姓名學(xué)號(hào)任課教師直線與圓的掃描轉(zhuǎn)換計(jì)算機(jī)科學(xué)與技術(shù)一班李倩文20110854126劉慧實(shí)驗(yàn)?zāi)康呐c要求：編寫程序?qū)崿F(xiàn)直線的掃描轉(zhuǎn)換。編寫程序?qū)崿F(xiàn)圓的掃描轉(zhuǎn)換。實(shí)驗(yàn)步驟與內(nèi)容：（可加附頁）用Bresenham算法畫一條起點(diǎn)為（50，50），終點(diǎn)為（150，150）的直線。（1）用正負(fù)法畫一個(gè)圓心為（100，100），R=50的1/4圓。（2）用正負(fù)法畫一個(gè)圓心為（100，100），R=50的整圓。程序清單：（1）.用Bresenham算法畫一條起點(diǎn)為（50，50），終點(diǎn)為（150，150）的直線。importjavax.swing.*;importjava.awt.*;classSetPixelextendsJPanel{ Colorcolor; intstartX,startY,endX,endY; publicSetPixel() { color=Color.blue; startX=50; startY=50; endX=150; endY=150; } publicvoidpaintComponent(Graphicsg) { g.setColor(color); Bresenham(g,startX,startY,endX,endY); } voidBresenham(Graphicsg,intxs,intys,intxe,intye){ intdx=xe-xs; intdy=ye-ys; inte=2*dy-dx; intx=xs; inty=ys; for(inti=0;i<dx;i++){ g.drawLine(x,y,x,y); if(e>=0){y=y+1; e=e-2*dx; } x=x+1; e=e+2*dy; } } }publicclassPixelWindowextendsJFrame{ publicPixelWindow(){ super("PixelColor"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(newRectangle(100,100,300,300)); SetPixelset=newSetPixel(); add(set);} /** *@paramargs */ @SuppressWarnings("deprecation") publicstaticvoidmain(String[]args){ //TODOAuto-generatedmethodstubPixelWindowsetPixel=newPixelWindow();setPixel.setVisible(true); }}2、用正負(fù)法畫一個(gè)圓心為（100，100），R=50的1/4圓。importjavax.swing.*;importjava.awt.*;classSetPixelextendsJPanel{ Colorcolor; intradius; publicSetPixel() { color=Color.blue; radius=50; } publicvoidpaintComponent(Graphicsg) { g.setColor(color); pnarc(g,radius); } voidpnarc(Graphicsg,intradius){ intx,y,f; x=0; y=0+radius; f=0; while(y>0){ g.drawLine(x,y,x,y); if(f>0){ f=f-2*y+1; y--; }else{ f=f+2*x+1; x++; } } if(y==0)g.drawLine(x,y,x,y);}}publicclassPixelWindowextendsJFrame{ publicPixelWindow(){ super("PixelColor"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(newRectangle(100,100,300,300)); SetPixelset=newSetPixel(); add(set);} /** *@paramargs */ @SuppressWarnings("deprecation") publicstaticvoidmain(String[]args){ //TODOAuto-generatedmethodstubPixelWindowsetPixel=newPixelWindow();setPixel.setVisible(true); }}遺留問題與說明：備注：年月日程序清單（操作步驟）

importjavax.swing.*;importjava.awt.*;publicclassSetPixelextendsJPanel{ {Colorcolor; intstartX,startY,endX,endY; publicSetPixel() { color=Color.blue; startX=50; startY=50; endX=150; endY=150; } publicvoidpaintComponent(Graphicsg) { g.setColor(color); Bresenham(Graphicsg,intxs,intys,intxe,intye); } }voidBresenham(Graphicsg,intxs,intys,intxe,intye){ intdx=xe-xs; intdy=ye-ys; inte=2*dy-dx; intx=xs; inty=ys; for(inti=0;i<dx;i++){ g.drawLine(x,y,x,y); if(e>=0){y=y+1; e=e-2*dx; } x=x+1; e=e+2*dy; } }publicclassPixelWindowextendsJFrame{publicPixelWindow(){ super("PixelColor") setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(newRectangle(100,100,300,300)); SetPixelset=newSetPixel(); add(set); }} /** *@paramargs */ @SuppressWarnings("deprecation") publicstati