用python中Ellipse函数画椭圆
时间: 2023-12-25 09:05:06 浏览: 311
在Python中使用Ellipse函数画椭圆可以使用matplotlib库中的Ellipse类来实现。具体步骤如下:
1. 导入matplotlib库中的Ellipse类和pyplot模块:
```python
from matplotlib.patches import Ellipse
import matplotlib.pyplot as plt
```
2. 创建一个画布和一个子图对象:
```python
fig, ax = plt.subplots()
```
3. 创建一个椭圆对象并添加到子图中:
```python
ellipse = Ellipse(xy=(0, 0), width=4, height=2, angle=45, edgecolor='r', facecolor='none')
ax.add_patch(ellipse)
```
其中,参数`xy`指定椭圆中心的坐标,`width`和`height`分别指定椭圆的宽和高,`angle`指定椭圆的旋转角度,`edgecolor`和`facecolor`分别指定椭圆的边框颜色和填充颜色。
4. 设置子图的坐标轴范围和标题:
```python
ax.set_xlim(-5, 5)
ax.set_ylim(-5, 5)
ax.set_title('Ellipse')
```
5. 显示画布:
```python
plt.show()
```
完整代码如下:
```python
from matplotlib.patches import Ellipse
import matplotlib.pyplot as plt
fig, ax = plt.subplots()
ellipse = Ellipse(xy=(0, 0), width=4, height=2, angle=45, edgecolor='r', facecolor='none')
ax.add_patch(ellipse)
ax.set_xlim(-5, 5)
ax.set_ylim(-5, 5)
ax.set_title('Ellipse')
plt.show()
```
运行结果如下图所示:

阅读全文
相关推荐


















