matlab动画演示17个实例.doc

1.弹性蹦球演示程序figure(1);%定义函数axis([-5.1,5,-0.05,1.05]);%绘制二维图形hold on;%保持当前图形及轴系所有的特性axis(off);%覆盖坐标刻度，并填充背景%通过填充绘出台阶及两边的挡板fill([4.12,4.22,4.22,4.12],[-0.05,-0.05,1.05,1.05],y);fill([-5,-3.2,-3.2,-5],[-0.05,-0.05,0,0],g);fill([-3.2,-2.8,-2.8,-3.2],[-0.05,-0.05,0.2,0.2],g);fill([-3.2,-1.4,-1.4,-3.2],[0.2,0.2,0.25,0.25],g);fill([-1.4,-1,-1,-1.4],[0.2,0.2,0.45,0.45],g);fill([-1.4,0.4,0.4,-1.4],[0.45,0.45,0.5,0.5],g);fill([0.4,0.8,0.8,0.4],[0.45,0.45,0.7,0.7],g);fill([0.4,2.0,2.0,0.4],[0.7,0.7,0.75,0.75],g);fill([2.0,2.3,2.3,2.0],[-0.05,-0.05,0.75,0.75],g);fill([2.3,4.12,4.12,2.3],[-0.05,-0.05,0,0],g);%x2=line([-5,5],[0.25,0.25],color,g,linestyle,-, markersize,50)%设置台阶边框线，颜色，擦试方式%line([-5,5],[0.5,0.5],color,b,linestyle,-, markersize,50)%设置球与地面接触面的颜色，擦试方式%line([-5,5],[0.75,0.75],color,b,linestyle,-, markersize,50)%设置球与地面接触面的颜色，擦试方式head=line(-5,1,color,r,linestyle,.,erasemode,xor, markersize,60);%设置小球颜色，大小，线条和擦试方式%body=line(-5,1,color,b,linestyle,-,erasemode,none); %描绘轨迹线%设置初始条件while 1t=4;dt=0.001;w=0;dw=0.001;w=0;%设置球弹起的初始位置%设置球弹起的高度while t=4.12? ? t=dt+t;if w=1? ? w=dw+w;else? ? w=-1;endy=(-w*w)+1;set(head,xdata,t,ydata,y);%设置球的运动%set(body,xdata,t,ydata,y);%描绘轨迹线drawnow;end %结束程序w=0;%设置球弹起的初始位置%设置球弹起的高度while t=2.11? ? t=t-dt;if w=1? ? w=dw+w;else? ? w=-1;endy=(-w*w)+1;set(head,xdata,t,ydata,y);%设置球的运动%set(body,xdata,t,ydata,y);%描绘轨迹线drawnow;end %结束程序w=0;%设置球弹起的初始位置??%设置球弹起的高度while t=1.11? ? t=t-dt;if w=1? ? w=dw+w;else? ? w=-1;endy=(-w*w)/4+1;set(head,xdata,t,ydata,y);%设置球的运动%set(body,xdata,t,ydata,y);%描绘轨迹线drawnow;end %结束程序w=-0.71;%设置球弹起的初始位置??%设置球弹起的高度while t=-0.62? ? t=t-dt;if w=1? ? w=dw+w;else? ? w=-1;endy=(-w*w)/2+1;set(head,xdata,t,ydata,y);%设置球的运动%set(body,xdata,t,ydata,y);%描绘轨迹线drawnow;end %结束程序w=-0.71;%设置球弹起的初始位置??%设置球弹起的高度while t=-2.31? ? t=t-dt;if w=1? ? w=dw+w;else? ? w=-1;endy=(-w*w)/2+0.75;set(head,xdata,t,ydata,y);%设置球的运动%set(body,xdata,t,ydata,y);%描绘轨迹线drawnow;en