Matlab-時(shí)鐘繪制

1、一題目請用Matlab編寫程序，繪制一個(gè)時(shí)鐘表盤和時(shí)針、分針、秒針，且時(shí)鐘能根據(jù)計(jì)算機(jī)系統(tǒng)當(dāng)前時(shí)間，自動更新時(shí)針、分針、秒針的位置。表盤和時(shí)針、分針、秒針使用plot函數(shù)繪制，計(jì)算機(jī)系統(tǒng)當(dāng)前時(shí)間使用clock函數(shù)獲取。二操作方法與實(shí)驗(yàn)步驟（1） 總體設(shè)計(jì)思想 設(shè)計(jì)時(shí)鐘，根據(jù)適中的樣式先畫出表盤，根據(jù)數(shù)學(xué)公式畫出時(shí)分刻度以及時(shí)針分針，再根據(jù)clock函數(shù)讀取計(jì)算機(jī)當(dāng)前時(shí)間，最后加上循環(huán)語句讓時(shí)鐘走起來。（2） 所用到的數(shù)學(xué)公式1. 繪制表盤（圓）：x = cos (theta1); y = sin (theta1);2. 繪制時(shí)分刻度： Plot ( 0.9*cos (theta3(i) ),

2、0.97*cos(theta3(i) ) ,0.9*sin (theta3(i) ),0.97*sin( theta3(i) ) );3. 繪制時(shí)針分針：theta_h=0.5 * pi-(h+m/60)/12*2*pi;plot ( 0,0.6 * cos(theta_h), 0,0.6*sin(theta_h), 'blue','linewidth', 2);theta_m=0.5*pi-m/60*2*pi;plot (0,0.7*cos(theta_m),0,0.7*sin(theta_m), 'cyan', 'linewidth&

3、#39;, 2);theta_s=0.5*pi-(s/60)*2*pi;plot (0,0.85*cos(theta_s),0,0.85*sin(theta_s), 'black', 'linewidth', 2)4. clock讀取計(jì)算機(jī)當(dāng)前時(shí)間： C=clock; h=C(4); m=C(5); s=C(6);（3） 程序流程圖開始 用極坐標(biāo)與直角坐標(biāo)的關(guān)系繪制圓盤：theta1=0:2*pi/100:2*pi; x=cos(theta1); y=sin(theta1); h=plot(x,y);i=1；j=1;i <=12 N Y 繪制時(shí)刻度線：pl

4、ot(0.8*cos(theta2(i),0.97*cos(theta2(i),0.8*sin(theta2(i),0.97*sin(theta2(i);i +j <=12 Y繪制分刻度線：plot(0.9*cos(theta3(i),0.97*cos(theta3(i),0.9*sin(theta3(i),0.97*sin(theta3(i); set(h,'color','black');j +讀取計(jì)算機(jī)當(dāng)前時(shí)間并畫出時(shí)分秒針： C=clock; h=C(4); m=C(5); s=C(6); theta_h=0.5*pi-(h+m/60)/12*2*

5、pi;plot(0,0.6*cos(theta_h),0,0.6*sin(theta_h),'blue','linewidth',2); theta_m=0.5*pi-m/60*2*pi;plot(0,0.7*cos(theta_m),0,0.7*sin(theta_m),'cyan','linewidth',2); theta_s=0.5*pi-(s/60)*2*pi; plot(0,0.85*cos(theta_s),0,0.85*sin(theta_s),'black','linewidth'

6、,2);加上循環(huán)使表走起來：while（1）結(jié)束（4） 實(shí)驗(yàn)代碼1. 利用極坐標(biāo)與直角坐標(biāo)的關(guān)系繪制圓。 theta1=0:2*pi/100:2*pi; x=cos(theta1); y=sin(theta1); h=plot(x,y); % 繪制圓 set(h,'linewidth',6) % 設(shè)置圓的屬性 hold on % 保留已經(jīng)繪制的圖形 axis equal % 是橫縱坐標(biāo)系的單位長度相同 2. 繪制時(shí)刻度線與分刻度線 theta2=0:2*pi/12:2*pi; for i=1:length(theta2) % 循環(huán)語句繪制時(shí)刻度線h=plot(0.8*cos(t

7、heta2(i),0.97*cos(theta2(i),0.8*sin(theta2(i),0.97*sin(theta2(i); set(h,'linewidth',3) set(h,'color','black') end theta3=0:2*pi/60:2*pi; for i=1:length(theta3) % 循環(huán)語句繪制分刻度線 h=plot(0.9*cos(theta3(i),0.97*cos(theta3(i),0.9*sin(theta3(i),0.9 7*sin(theta3(i); set(h,'color'

8、;,'black') end 3. 繪制時(shí)針分針并讀取計(jì)算機(jī)當(dāng)前時(shí)間C=clock; % 調(diào)用clock函數(shù)讀取當(dāng)前時(shí)間h=C(4); % clock函數(shù)：year month day hour minute seconds 4，5，6分別代表m=C(5); 時(shí)分秒s=C(6);theta_h=0.5*pi-(h+m/60)/12*2*pi;plot(0,0.6*cos(theta_h),0,0.6*sin(theta_h),'blue','linewidth',2);theta_m=0.5*pi-m/60*2*pi;plot(0,0.7*cos

9、(theta_m),0,0.7*sin(theta_m),'cyan','linewidth',2);theta_s=0.5*pi-(s/60)*2*pi;plot(0,0.85*cos(theta_s),0,0.85*sin(theta_s),'black','linewidth',2); 4. 讓時(shí)鐘走起來完成實(shí)驗(yàn) while(1) theta1=0:2*pi/100:2*pi; X=cos(theta1); y=sin(theta1); h=plot(x,y); set(h,'linewidth',6) ho

10、ld on axis equal plot(0,0,'.','Markersize',50); theta2=0:2*pi/12:2*pi; for i=1:length(theta2) h=plot(0.8*cos(theta2(i),0.97*cos(theta2(i),0.8*sin(theta2(i),0.97*sin(theta2(i); set(h,'linewidth',3) set(h,'color','black') end theta3=0:2*pi/60:2*pi; for i=1:lengt

11、h(theta3) h=plot(0.9*cos(theta3(i),0.97*cos(theta3(i),0.9*sin(theta3(i),0.97*sin(theta3(i); set(h,'color','black') end C=clock; h=C(4); m=C(5); s=C(6); theta_h=0.5*pi-(h+m/60)/12*2*pi; plot(0,0.6*cos(theta_h),0,0.6*sin(theta_h),'blue','linewidth',2); theta_m=0.5*pi-m/60*2*pi; plot(0,0.7*cos(theta_m),0,0.7*sin(theta_m),'cyan','linewidth',2); theta_s=0.5*pi-(s/