json数据解析+画出散点和边界图

1. 数据是json格式

2. 函数功能：
给出5个顶点，画出边界，画图展示给定的散点是不是在由这5个顶点构成的多边形图形内。给出了两种代码，未注释的是优化后的代码，注释的是优化前的代码.

3. 代码结果展示

4. 代码展示：优化后的代码

import json
import matplotlib.pyplot as plt# json数据的读取
def read_from_file(path):with open(path, "r") as f:point_info = json.load(f)  # 数据读取coordinate_list=[] #建立列表，每一个主键对应的坐标作为一个整体，加入这个列表for key_info in point_info.values():temp = resolution(key_info)coordinate_list.append(temp)return coordinate_listdef resolution(keys_value):#把一个主键的点存储到列表coordinate = [[],[]]for key_value in keys_value.values():coordinate[0].append(key_value['x'])coordinate[1].append(key_value['y'])return coordinatedef plot(path):coordinate_list=read_from_file(path)print(coordinate_list[1])coordinate_list[1][0].append(coordinate_list[1][0][0])coordinate_list[1][1].append(coordinate_list[1][1][0])print(coordinate_list[1])plt.scatter(coordinate_list[0][0], coordinate_list[0][1], c='red', edgecolors='none', s=20) #散点图plt.plot(coordinate_list[1][0], coordinate_list[1][1], color='b') #边界图#显示坐标值for a, b in zip(coordinate_list[1][0], coordinate_list[1][1]):plt.text(a, b, (a, b))plt.show()if __name__ == "__main__":data = r"D:\Pythoncode\20plot\point_and_polygon.json"# info = read_from_file(data)info=plot(data)

5. 未优化之前的代码

# import json
# import matplotlib.pyplot as plt
# #json数据的读取
# def read_from_file(path):
#     with open(path, "r") as f:
#         point_info = json.load(f)#数据读取
#
#         scatter=point_info['generated_points']#获取散点坐标
#         scatter_point_x=[];
#         scatter_point_y =[];
#         for keyv in scatter.values():
#             scatter_point_x.append(keyv['x'])
#             scatter_point_y.append(keyv['y'])
#
#         polygon_point=point_info['polygon']  #获取多边形点的做标
#         polygon_point_x = [];
#         polygon_point_y = [];
#         for keyvs in polygon_point.values():
#             polygon_point_x.append(keyvs['x'])
#             polygon_point_y.append(keyvs['y'])
#         # print(polygon_point_x)
#         # print(polygon_point_y)
#     return scatter_point_x,scatter_point_y, polygon_point_x, polygon_point_y
#
#
# def plot(path):
#     x1,y1,x2,y2 = read_from_file(data)
#     x2.append(x2[0])
#     y2.append(y2[0])
#     plt.scatter(x1, y1, c='red', edgecolors='none', s=20)
#
#     plt.plot(x2, y2, color='b')
#     # #显示坐标值
#     # for a, b in zip(x2, y2):
#     #     plt.text(a, b, (a, b))
#
#     plt.show()
#     print(x2)
#     print(y2)
#
#
#
# if __name__=="__main__":
#     data=r"D:\Pythoncode\20plot\point_and_polygon(2).json"
#     info=plot(data)

6、用到的json数据

{"generated_points" : {"0" : {"x" : -1.0,"y" : 1.75},"1" : {"x" : -1.0,"y" : 1.4000000000000004},"10" : {"x" : -0.20000000000000007,"y" : 1.0500000000000003},"11" : {"x" : -0.20000000000000007,"y" : 0.70000000000000018},"12" : {"x" : 0.59999999999999987,"y" : 2.7999999999999998},"13" : {"x" : 0.59999999999999987,"y" : 2.4500000000000002},"14" : {"x" : 0.59999999999999987,"y" : 2.1000000000000001},"15" : {"x" : 0.59999999999999987,"y" : 1.75},"16" : {"x" : 0.59999999999999987,"y" : 1.4000000000000004},"17" : {"x" : 0.59999999999999987,"y" : 1.0500000000000003},"18" : {"x" : 0.59999999999999987,"y" : 0.70000000000000018},"19" : {"x" : 0.59999999999999987,"y" : 0.35000000000000009},"2" : {"x" : -1.0,"y" : 1.0500000000000003},"20" : {"x" : 1.3999999999999999,"y" : 3.1499999999999999},"21" : {"x" : 1.3999999999999999,"y" : 2.7999999999999998},"22" : {"x" : 1.3999999999999999,"y" : 2.4500000000000002},"23" : {"x" : 1.3999999999999999,"y" : 2.1000000000000001},"24" : {"x" : 1.3999999999999999,"y" : 1.75},"25" : {"x" : 1.3999999999999999,"y" : 1.4000000000000004},"26" : {"x" : 1.3999999999999999,"y" : 1.0500000000000003},"27" : {"x" : 1.3999999999999999,"y" : 0.70000000000000018},"28" : {"x" : 1.3999999999999999,"y" : 0.35000000000000009},"29" : {"x" : 2.1999999999999997,"y" : 3.1499999999999999},"3" : {"x" : -1.0,"y" : 0.70000000000000018},"30" : {"x" : 2.1999999999999997,"y" : 2.7999999999999998},"31" : {"x" : 2.1999999999999997,"y" : 2.4500000000000002},"32" : {"x" : 2.1999999999999997,"y" : 2.1000000000000001},"33" : {"x" : 2.1999999999999997,"y" : 1.75},"34" : {"x" : 2.1999999999999997,"y" : 1.4000000000000004},"35" : {"x" : 2.1999999999999997,"y" : 1.0500000000000003},"36" : {"x" : 2.1999999999999997,"y" : 0.70000000000000018},"37" : {"x" : 2.1999999999999997,"y" : 0.35000000000000009},"38" : {"x" : 2.9999999999999996,"y" : 3.1499999999999999},"39" : {"x" : 2.9999999999999996,"y" : 2.7999999999999998},"4" : {"x" : -1.0,"y" : 0.35000000000000009},"40" : {"x" : 2.9999999999999996,"y" : 2.4500000000000002},"41" : {"x" : 2.9999999999999996,"y" : 2.1000000000000001},"42" : {"x" : 2.9999999999999996,"y" : 1.75},"43" : {"x" : 2.9999999999999996,"y" : 1.4000000000000004},"44" : {"x" : 2.9999999999999996,"y" : 1.0500000000000003},"45" : {"x" : 2.9999999999999996,"y" : 0.70000000000000018},"46" : {"x" : 2.9999999999999996,"y" : 0.35000000000000009},"47" : {"x" : 3.7999999999999998,"y" : 2.7999999999999998},"48" : {"x" : 3.7999999999999998,"y" : 2.4500000000000002},"49" : {"x" : 3.7999999999999998,"y" : 2.1000000000000001},"5" : {"x" : -1.0,"y" : 0.0},"50" : {"x" : 3.7999999999999998,"y" : 1.75},"51" : {"x" : 3.7999999999999998,"y" : 1.4000000000000004},"52" : {"x" : 3.7999999999999998,"y" : 1.0500000000000003},"53" : {"x" : 3.7999999999999998,"y" : 0.70000000000000018},"54" : {"x" : 3.7999999999999998,"y" : 0.35000000000000009},"55" : {"x" : 4.5999999999999996,"y" : 2.7999999999999998},"56" : {"x" : 4.5999999999999996,"y" : 2.4500000000000002},"57" : {"x" : 4.5999999999999996,"y" : 2.1000000000000001},"58" : {"x" : 4.5999999999999996,"y" : 1.75},"59" : {"x" : 4.5999999999999996,"y" : 1.4000000000000004},"6" : {"x" : -0.20000000000000007,"y" : 2.4500000000000002},"60" : {"x" : 4.5999999999999996,"y" : 1.0500000000000003},"61" : {"x" : 4.5999999999999996,"y" : 0.70000000000000018},"62" : {"x" : 5.3999999999999995,"y" : 2.4500000000000002},"63" : {"x" : 5.3999999999999995,"y" : 2.1000000000000001},"64" : {"x" : 5.3999999999999995,"y" : 1.75},"65" : {"x" : 5.3999999999999995,"y" : 1.4000000000000004},"66" : {"x" : 5.3999999999999995,"y" : 1.0500000000000003},"67" : {"x" : 5.3999999999999995,"y" : 0.70000000000000018},"68" : {"x" : 6.1999999999999993,"y" : 2.4500000000000002},"69" : {"x" : 6.1999999999999993,"y" : 2.1000000000000001},"7" : {"x" : -0.20000000000000007,"y" : 2.1000000000000001},"70" : {"x" : 6.1999999999999993,"y" : 1.75},"71" : {"x" : 6.1999999999999993,"y" : 1.4000000000000004},"72" : {"x" : 6.1999999999999993,"y" : 1.0500000000000003},"8" : {"x" : -0.20000000000000007,"y" : 1.75},"9" : {"x" : -0.20000000000000007,"y" : 1.4000000000000004}},"polygon" : {"point_0" : {"x" : -1.0,"y" : 2.0},"point_1" : {"x" : 1.5,"y" : 3.5},"point_2" : {"x" : 7.0,"y" : 2.5},"point_3" : {"x" : 6.0,"y" : 0.5},"point_4" : {"x" : 0.0,"y" : 0.0}}
}

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