如何在django中按自定义区域过滤位置？

# models.py
from django.db import models

class Location(models.Model):
    name = models.CharField(max_length=100)
    latitude = models.FloatField()
    longitude = models.FloatField()

# views.py
from django.shortcuts import render
from .models import Location

def filter_locations(request):
    # 自定义区域的边界，这里使用一个简单的示例多边形
    custom_area = [
        (40.712776, -74.005974),  # 纽约市
        (34.052235, -118.243683),  # 洛杉矶
        (41.878113, -87.629799),  # 芝加哥
    ]

    # 过滤位置信息
    filtered_locations = Location.objects.filter(latitude__range=(34, 41), longitude__range=(-118, -74))

    context = {
        'filtered_locations': filtered_locations
    }
    return render(request, 'filter_locations.html', context)

# filter_locations.html
{% for location in filtered_locations %}
    <p>{{ location.name }}</p>
{% endfor %}