matlab绘制peano(皮亚诺)曲线和koch(科赫曲线,雪花曲线)分形曲线
时间: 2023-11-29 11:34:44 浏览: 311
绘制Peano曲线和Koch曲线可以使用MATLAB中的绘图函数进行实现,下面是详细的代码实现:
1. 绘制Peano曲线
```matlab
% 定义绘制Peano曲线的函数
function PeanoCurve(n)
% n为绘制的阶数
if n == 0
x = [0 1 1 2 2 3 3 2 2 1 1 0];
y = [0 0 1 1 0 0 1 1 2 2 1 1];
plot(x,y,'k');
else
hold on;
PeanoCurve(n-1); % 递归绘制子曲线
axis equal; % 设置坐标轴比例相等
x = get(gca,'Xtick');
y = get(gca,'Ytick');
set(gca,'XTick',[],'YTick',[]); % 隐藏坐标轴
x = [x(1) x x(end)];
y = [y(1) y y(end)]; % 添加边框
x1 = x(1:2:end); x2 = x(2:2:end);
y1 = y(1:2:end); y2 = y(2:2:end);
x = [x1;x2;x2;x1;x1];
y = [y1;y1;y2;y2;y1]; % 组合子曲线
plot(x,y,'k');
hold off;
end
end
```
使用方法:
```matlab
PeanoCurve(3); % 绘制3阶Peano曲线
```
2. 绘制Koch曲线
```matlab
% 定义绘制Koch曲线的函数
function KochCurve(n)
% n为绘制的阶数
if n == 0
x = [0 1 1/2 1/2 1 1];
y = [0 0 sqrt(3)/2 sqrt(3) sqrt(3) 0];
plot(x,y,'k');
else
hold on;
KochCurve(n-1); % 递归绘制子曲线
axis equal; % 设置坐标轴比例相等
x = get(gca,'Xtick');
y = get(gca,'Ytick');
set(gca,'XTick',[],'YTick',[]); % 隐藏坐标轴
x = [x(1) x x(end)];
y = [y(1) y y(end)]; % 添加边框
x1 = x(1:2:end); x2 = x(2:2:end);
y1 = y(1:2:end); y2 = y(2:2:end);
x = [x1;(x1+x2)/2;(x1+x2)/2;(x2-x1)/2+x1;x2];
y = [y1;(y1+y2)/2;(y1+y2)/2;(y2-y1)/2+y1;y2]; % 组合子曲线
plot(x,y,'k');
hold off;
end
end
```
使用方法:
```matlab
KochCurve(3); % 绘制3阶Koch曲线
```
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