我正在尝试向地图添加多个路线和图钉，并将其导出为图像而不是HTML。我发现@enigmaticPhysicist answer的代码如下：
#!/usr/bin/env python
"""
Stitch together Google Maps images from lat, long coordinates
Based on work by heltonbiker and BenElgar
Changes:
* updated for Python 3
* added Google Maps API key (compliance with T&C, although can set to None)
* handle http request exceptions
With contributions from Eric Toombs.
Changes:
* Dramatically simplified the maths.
* Set a more reasonable default logo cutoff.
* Added global constants for logo cutoff and max image size.
* Translated a couple presumably Portuguese variable names to English.
"""
import requests
from io import BytesIO
from math import log, exp, tan, atan, ceil
from PIL import Image
import sys
# circumference/radius
tau = 6.283185307179586
# One degree in radians, i.e. in the units the machine uses to store angle,
# which is always radians. For converting to and from degrees. See code for
# usage demonstration.
DEGREE = tau/360
ZOOM_OFFSET = 8
GOOGLE_MAPS_API_KEY = None # set to 'your_API_key'
# Max width or height of a single image grabbed from Google.
MAXSIZE = 640
# For cutting off the logos at the bottom of each of the grabbed images. The
# logo height in pixels is assumed to be less than this amount.
LOGO_CUTOFF = 32
def latlon2pixels(lat, lon, zoom):
mx = lon
my = log(tan((lat + tau/4)/2))
res = 2**(zoom + ZOOM_OFFSET) / tau
px = mx*res
py = my*res
return px, py
def pixels2latlon(px, py, zoom):
res = 2**(zoom + ZOOM_OFFSET) / tau
mx = px/res
my = py/res
lon = mx
lat = 2*atan(exp(my)) - tau/4
return lat, lon
def get_maps_image(NW_lat_long, SE_lat_long, zoom=18):
ullat, ullon = NW_lat_long
lrlat, lrlon = SE_lat_long
# convert all these coordinates to pixels
ulx, uly = latlon2pixels(ullat, ullon, zoom)
lrx, lry = latlon2pixels(lrlat, lrlon, zoom)
# calculate total pixel dimensions of final image
dx, dy = lrx - ulx, uly - lry
# calculate rows and columns
cols, rows = ceil(dx/MAXSIZE), ceil(dy/MAXSIZE)
# calculate pixel dimensions of each small image
width = ceil(dx/cols)
height = ceil(dy/rows)
heightplus = height + LOGO_CUTOFF
# assemble the image from stitched
final = Image.new('RGB', (int(dx), int(dy)))
for x in range(cols):
for y in range(rows):
dxn = width * (0.5 + x)
dyn = height * (0.5 + y)
latn, lonn = pixels2latlon(
ulx + dxn, uly - dyn - LOGO_CUTOFF/2, zoom)
position = ','.join((str(latn/DEGREE), str(lonn/DEGREE)))
print(x, y, position)
urlparams = {
'center': position,
'zoom': str(zoom),
'size': '%dx%d' % (width, heightplus),
'maptype': 'roadmap',
'sensor': 'false',
'scale': 1
}
if GOOGLE_MAPS_API_KEY is not None:
urlparams['key'] = GOOGLE_MAPS_API_KEY
url = 'http://maps.google.com/maps/api/staticmap'
try:
response = requests.get(url, params=urlparams)
response.raise_for_status()
except requests.exceptions.RequestException as e:
print(e)
sys.exit(1)
im = Image.open(BytesIO(response.content))
final.paste(im, (int(x*width), int(y*height)))
return final
############################################
if __name__ == '__main__':
# a neighbourhood in Lajeado, Brazil:
NW_lat_long = (1.351197*DEGREE, 103.715133*DEGREE)
SE_lat_long = (1.230035*DEGREE, 103.933829*DEGREE)
zoom = 13 # be careful not to get too many images!
result = get_maps_image(NW_lat_long, SE_lat_long, zoom=zoom)
result.show()
使用此代码，我可以绘制希望看到的地图。但是，我不确定我可以在代码中的什么地方添加行和引脚。我有为此所需的坐标。我正在寻找使用gmplot模块生成的输出示例，该模块仅输出HTML文件。这是样本的screenshot，它使用了我的数据的一个子集。请注意，我可以绘制所有路线，但由于HTML文件太大而无法打开。
路线示例列表：
[[1.2973966666666668, 103.78098833333333], [1.297397, 103.780988], [1.2973966666666668, 103.78098833333333]]
示例图钉：
[1.2973966666666668, 103.78098833333333]
任何帮助将不胜感激。谢谢。