已知半径和圆心画圆
几个随机的圆心.和半径.怎么画出圆呢?谢谢已知半径和圆心画圆
polar(2*pi,r) 原先写过一个限制位置和圆大小的随机画圆程序:function RandomPlotCircle(Lxmin,Lxmax,Lymin,Lymax,Rmin,Rmax,n,Factor)
& This Programm made by Bainhome
& Date:Mar.22th 2006
& First Edited in Mar.23th 2006
% **********************************输*入*变*量*介*绍**********************************
% Lmin,Lmax——The Bound of Circle PlotArea(Both X dir & Y dir)
% Rmin,Rmax——The Limitation of Radius
% Example:RandomPlotCircle(1,10,1,10,.1,2,10)
% *****************************************完*毕***************************************************
close all
clc
count=0;
Lxmin=Lxmin+Rmax;
Lxmax=Lxmax-Rmax;
Lymin=Lymin+Rmax;
Lymax=Lymax-Rmax;
R1(1)=Rmin+rand*(Rmax-Rmin);
RT(1)=R1(1);
x1(1)=Lxmin+rand*(Lxmax-Lxmin);
y1(1)=Lymin+rand*(Lymax-Lymin);
for i=1:1
if x1(i)+R1(i)<=Lxmax&x1(i)-R1(i)>=Lxmin&y1(i)+R1(i)<=Lymax&y1(i)-R1(i)>=Lymin
else
R1(i)=Factor*R1(i);
while x1(i)+R1(i)>Lxmax|x1(i)-R1(i)<Lxmin|y1(i)+R1(i)>Lymax|y1(i)-R1(i)<Lymin
R1(i)=Factor*R1(i);
end
end
if R1(i)>Rmin
rectangle('position',,'curvature',,'facecolor','w')
axis equal
hold on
else
count=count+1;
R1(i)=0;
end
end
for i=2:n
R1(i)=Rmin+rand*(Rmax-Rmin);
RT(i)=R1(i);
x1(i)=Lxmin+rand*(Lxmax-Lxmin);
y1(i)=Lymin+rand*(Lymax-Lymin);
if x1(i)+R1(i)<=Lxmax&x1(i)-R1(i)>=Lxmin&y1(i)+R1(i)<=Lymax&y1(i)-R1(i)>=Lymin
Disp=sqrt(.^2+.^2);
SumR=R1(i)+R1(1:i-1);
if all(Disp./SumR>1)
if R1(i)>Rmin
rectangle('position',,'curvature',,'facecolor','w')
axis equal
hold on
else
count=count+1;
R1(i)=0;
end
else
while any(Disp./SumR<=1)|x1(i)+R1(i)>Lxmax|x1(i)-R1<Lxmin|y1(i)+R1(i)>Lymax|y1(i)-R1(i)<Lymin
R1(i)=Factor*R1(i);
x1(i)=Lxmin+rand*(Lxmax-Lxmin);
y1(i)=Lymin+rand*(Lymax-Lymin);
Disp=sqrt(.^2+.^2);
SumR=R1(i)+R1(1:i-1);
end
if R1(i)>Rmin
rectangle('position',,'curvature',,'facecolor','w')
axis equal
hold on
else
count=count+1;
R1(i)=0;
end
end
else
while x1(i)+R1(i)>Lxmax|x1(i)-R1<Lxmin|y1(i)+R1(i)>Lymax|y1(i)-R1(i)<Lymin
R1(i)=Factor*R1(i);
end
Disp=sqrt(.^2+.^2);
SumR=R1(i)+R1(1:i-1);
if all(Disp./SumR>1)
if R1(i)>Rmin
rectangle('position',,'curvature',,'facecolor','w')
axis equal
hold on
else
count=count+1;
R1(i)=0;
end
else
while any(Disp./SumR<=1)|x1+R1>Lxmax|x1-R1<Lxmin|y1+R1>Lymax|y1-R1<Lymin
R1(i)=Factor*R1(i);
x1(i)=Lxmin+rand*(Lxmax-Lxmin);
y1(i)=Lymin+rand*(Lymax-Lymin);
Disp=sqrt(.^2+.^2);
SumR=R1(i)+R1(1:i-1);
end
if R1(i)>Rmin
rectangle('position',,'curvature',,'facecolor','w')
axis equal
hold on
else
count=count+1;
R1(i)=0;
end
end
end
end
% axis()
x1(R1==0)=[];
y1(R1==0)=[];
R1(R1==0)=[];
R1,x1,y1
RT=R1;
count
if count>0
while length(RT)~=n
R2=Rmin+rand*(Rmax-Rmin);
x2=Lxmin+rand*(Lxmax-Lxmin);
y2=Lymin+rand*(Lymax-Lymin);
Disp=sqrt(.^2+.^2);
SumR=R2+R1;
if all(Disp./SumR>1)
RT=;
rectangle('position',,'curvature',,'facecolor','w')
axis equal
hold on
end
end
end
R1
set(gca,'color','k','fontsize',20,'fontweight','bold')
title('随机画圆程序','fontsize',20,'fontweight','bold','fontname','隶书')
Lxmin=Lxmin-Rmax;
Lxmax=Lxmax+Rmax;
Lymin=Lymin-Rmax;
Lymax=Lymax+Rmax;
axis()
页:
[1]