有可能对佛叶产生启示吗？

Question

我在网上的图片上看到，folium在地图上生成了一种启示录形式，我试着手工创建，但每点都不可行，有什么办法吗？叶状叶

Answer 1

是的，通过使用folium的多边形(和其他一些东西)

我复制了这个回答来构造多边形。

import math
from shapely.geometry import Point
from shapely.affinity import scale, rotate

#input parameters
A = Point(-95.5, 41.25)
B = Point(-96.5, 41.25)
R = .25

d = A.distance(B)

#first, rotate B to B' around A so that |AB'| = |AB| and B'.y = A.y
#and then take S as midpoint of AB'
S = Point(A.x + d/2, A.y)

#alpha represents the angle of this rotation
alpha = math.atan2(B.y - A.y, B.x - A.x)

#create a circle with center at S passing through A and B'
C = S.buffer(d/2)

#rescale this circle in y-direction so that the corresponding
#axis is R units long
C = scale(C, 1, R/(d/2))

#rotate the ellipse obtained in previous step around A into the
#original position (positive angles represent counter-clockwise rotation)
C = rotate(C, alpha, origin = A, use_radians = True)

其中C是一个形状多边形

print(type(C))
<class 'shapely.geometry.polygon.Polygon'>

我把坐标从X，Y翻转到Y，X，使之变得友好

folium_poly = [[y,x] for x,y in C.exterior.coords]

剩下的都是叶

import folium

m = folium.Map([C.centroid.y, C.centroid.x])
folium.Polygon(folium_poly).add_to(m)
m

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