怎么把with open('路径规划port2.json', 'r') as f: # json格式数据的文件(要求数据的格式是json,不只是文件扩展名) data = json.load(f) # 提取x和y坐标 x_coords = [] y_coords = [] route_path = data['payloadItem']['routePath'] for path in route_path: for point in path: x_coords.append(point['x']) y_coords.append(point['y']) # 绘制路径图 plt.plot(x_coords, y_coords) # 绘制四边形外边界 with open('外边界.txt', 'r') as f: # json格式数据的文件(要求数据的格式是json,不只是文件扩展名) data1 = json.load(f) polygon_coords = data1["map"]["outerbd"] polygon = Polygon(polygon_coords, closed=True, fill=None, edgecolor='red') plt.gca().add_patch(polygon) plt.xlabel('X') plt.ylabel('Y') plt.title('Path with Polygon') plt.show()生成的图像保存成文件
时间: 2024-04-15 20:24:35 浏览: 20
要将生成的图像保存为文件,你可以使用 `savefig` 函数来实现。以下是修改后的代码示例:
```python
import json
import matplotlib.pyplot as plt
from matplotlib.patches import Polygon
def plot_route_with_polygon(file_name, polygon_file_name, save_file_name):
with open(file_name, 'r') as f:
data = json.load(f)
x_coords = []
y_coords = []
route_path = data['payloadItem']['routePath']
for path in route_path:
for point in path:
x_coords.append(point['x'])
y_coords.append(point['y'])
plt.plot(x_coords, y_coords)
with open(polygon_file_name, 'r') as f:
data1 = json.load(f)
polygon_coords = data1["map"]["outerbd"]
polygon = Polygon(polygon_coords, closed=True, fill=None, edgecolor='red')
plt.gca().add_patch(polygon)
plt.xlabel('X')
plt.ylabel('Y')
plt.title('Path with Polygon')
plt.savefig(save_file_name)
plt.close()
```
你可以调用 `plot_route_with_polygon('路径规划port2.json', '外边界.txt', '路径图.png')` 来生成并保存路径图,文件将保存为名为 `路径图.png` 的PNG图像文件。记得在运行代码之前,确保已经安装了 `matplotlib` 库。