Question

我试图在地图图像上绘制一些坐标（纬度和经度）。我正在绘制的数据来自列表列表（lats和lons分别是第2和第3个元素）。我已经做了一些关于matplotlib和'extent'的阅读，但是我仍然无法将坐标与地图对齐（也就是说，我无法将其缩放'可以这么说'。

def mapping_data(atlas_data):
    i = 0
    x = []
    y = []
    while i < len(atlas_data):
        x.append(atlas_data[i][1])
        y.append(atlas_data[i][2])
        i = i + 1

    image = plt.imread('map.png')
    mapped = plt.imshow(image)
    plt.imshow(mpimg.imread('map.png'))
    plt.scatter(x, y)
    plt.show()

当我按原样运行我的代码时，我得到了im1（地图正常，但是所有地点都指向地图而不是地图上）。当我添加所需的地图范围时，如下所示：

(plt.imshow(mpimg.imread('map.png'), extent = (149.105, 149.130, -35.29, -35.27))

...我得到了im2（像往前一样，但是地图图像颠倒了）??

有人可以帮我解决出错的问题吗？我错过了一步吗？我非常感谢任何有助于调整事物的帮助！

以下是我用于参考的数据示例：

[['Kookaburra',
  -35.27667,
  149.1097,
  'Australian National Botaniacl Gardens, Canberra',
  '2000-08-14',
  'Aves',
  'Coraciiformes',
  'Alcedinidae',
  'Dacelo',
  'Dacelo novaeguineae',
  'False'],
 ['White-faced heron',
  -35.272244105599064,
  149.12580246473127,
  'Sullivans Creek--Turner Parkland',
  '2016-08-09',
  'Aves',
  'Ciconiiformes',
  'Ardeidae',
  'Egretta',
  'Egretta novaehollandiae',
  'False'],
 ['Australian King-parrot',
  -35.274386,
  149.112636,
  'CSIRO (Black Mountain)',
  '2014-10-20',
  'Aves',
  'Psittaciformes',
  'Psittacidae',
  'Alisterus',
  'Alisterus scapularis',
  'False'],
 ['Eastern Spinebill',
  -35.27719917903922,
  149.10937031732462,
  'Australian National Botanic Gardens',
  '2000-09-08',
  'Aves',
  'Passeriformes',
  'Meliphagidae',
  'Acanthorhynchus',
  'Acanthorhynchus tenuirostris',
  'False'],
 ['Crimson Rosella',
  -35.2780499,
  149.11015749999999,
  'Australian National Botanic Gardens',
  '2003-08-08',
  'Aves',
  'Psittaciformes',
  'Psittacidae',
  'Platycercus',
  'Platycercus elegans',
  'False'],
 ['Australian Raven',
  -35.27856893080605,
  149.10974594347084,
  'Australian National Botanic Gardens',
  '2018-03-18',
  'Aves',
  'Passeriformes',
  'Corvidae',
  'Corvus',
  'Corvus coronoides',
  'False'],
 ['Australian King-parrot',
  -35.2780499,
  149.11015749999999,
  'Australian National Botanic Gardens',
  '2012-07-24',
  'Aves',
  'Psittaciformes',
  'Psittacidae',
  'Alisterus',
  'Alisterus scapularis',
  'False']]

Answer 1

您快到了那里！ x和y需要交换。我还整理了一下您的功能。

以下方法应该起作用：

import matplotlib.pyplot as plt
import matplotlib.image as mpimg

fig, ax = plt.subplots()

atlas_data = [['Kookaburra',
  -35.27667,
  149.1097,
  'Australian National Botaniacl Gardens, Canberra',
  '2000-08-14',
  'Aves',
  'Coraciiformes',
  'Alcedinidae',
  'Dacelo',
  'Dacelo novaeguineae',
  'False'],
 ['White-faced heron',
  -35.272244105599064,
  149.12580246473127,
  'Sullivans Creek--Turner Parkland',
  '2016-08-09',
  'Aves',
  'Ciconiiformes',
  'Ardeidae',
  'Egretta',
  'Egretta novaehollandiae',
  'False'],
 ['Australian King-parrot',
  -35.274386,
  149.112636,
  'CSIRO (Black Mountain)',
  '2014-10-20',
  'Aves',
  'Psittaciformes',
  'Psittacidae',
  'Alisterus',
  'Alisterus scapularis',
  'False'],
 ['Eastern Spinebill',
  -35.27719917903922,
  149.10937031732462,
  'Australian National Botanic Gardens',
  '2000-09-08',
  'Aves',
  'Passeriformes',
  'Meliphagidae',
  'Acanthorhynchus',
  'Acanthorhynchus tenuirostris',
  'False'],
 ['Crimson Rosella',
  -35.2780499,
  149.11015749999999,
  'Australian National Botanic Gardens',
  '2003-08-08',
  'Aves',
  'Psittaciformes',
  'Psittacidae',
  'Platycercus',
  'Platycercus elegans',
  'False'],
 ['Australian Raven',
  -35.27856893080605,
  149.10974594347084,
  'Australian National Botanic Gardens',
  '2018-03-18',
  'Aves',
  'Passeriformes',
  'Corvidae',
  'Corvus',
  'Corvus coronoides',
  'False'],
 ['Australian King-parrot',
  -35.2780499,
  149.11015749999999,
  'Australian National Botanic Gardens',
  '2012-07-24',
  'Aves',
  'Psittaciformes',
  'Psittacidae',
  'Alisterus',
  'Alisterus scapularis',
  'False']]

def mapping_data(atlas_data):
    x, y = [], []
    for i in range(len(atlas_data)):
        x.append(atlas_data[i][1])
        y.append(atlas_data[i][2])

    return x, y

y, x = mapping_data(atlas_data)

ax.scatter(x, y, edgecolors='red', linewidths=2, zorder=2)
ax.imshow(mpimg.imread('https://preview.ibb.co/jSD99o/map.png'), extent=(149.105, 149.130, -35.29, -35.27), zorder=1)

plt.show()

仅供参考，我创建了指向该区域google地图上的屏幕截图的链接，因此，实际位置是估算值，坐标将不完全匹配。

在地图上放置坐标 - Python

1 个答案: