Question

我正在学习pythons库gmplot，我想知道是否有一种方法可以用这个库绘制多个多边形。这是我为绘制一个多边形而编写的代码：

from gmplot import gmplot

gmap5 = gmplot.GoogleMapPlotter(10, 10, 7)

x = [5, 10, 10, 5]
y =[5, 5, 15, 15]
gmap5.scatter(x, y, '# FF0000', size = 40, marker = False) 

# polygon method Draw a polygon with 
gmap5.polygon(x, y, color = 'red') 

gmap5.draw( "map.html" )

但是当我要绘制多个多边形时，出现错误：

TypeError: can't multiply sequence by non-int of type 'float'

这是我编写的代码：

from gmplot import gmplot

gmap5 = gmplot.GoogleMapPlotter(10, 10, 7)

x = [[5, 10, 10, 5], [15, 15, 19, 25]]
y =[[5, 5, 15, 15], [16, 17, 25, 15]]

gmap5.scatter(x, y, '# FF0000', size = 40, marker = False) 

# polygon method Draw a polygon with 
gmap5.polygon(x, y, color = 'red') 

gmap5.draw( "map.html" )

我也尝试使用此方法：x = [(5, 10, 10, 5), (15, 15, 19, 25)] y =[(5, 5, 15, 15), (16, 17, 25, 15)]，但它给了我同样的错误

Answer 1

所以，我认为您的问题是gmap5.scatter期望有一个经度和纬度点列表，并且您正在传递一个列表列表。通过遍历您的x＆y列表中的列表，一次绘制一个列表，我设法使其起作用。

尝试一下

from gmplot import gmplot

gmap5 = gmplot.GoogleMapPlotter(10, 10, 7)

x = [[5, 10, 10, 5], [15, 15, 19, 25]]
y =[[5, 5, 15, 15], [16, 17, 25, 15]]

for lat, long in zip(x,y):
    gmap5.scatter(lat, long, '# FF0000', size = 40, marker = False)

    # polygon method Draw a polygon with
    gmap5.polygon(lat, long, color = 'red')

gmap5.draw( "map.html" )

通过这样做，您应该能够绘制多个多边形。

例如，这也对我有用：

from gmplot import gmplot

gmap5 = gmplot.GoogleMapPlotter(10, 10, 7)

x = [[5, 10, 10, 5], [15, 15, 19, 25], [10, 20, 25, 50, 10]]
y = [[5, 5, 15, 15], [16, 17, 25, 15], [25, 30, 35, 40, 25]]

for lat, long in zip(x,y):
    gmap5.scatter(lat, long, '# FF0000', size = 40, marker = False)

    # polygon method Draw a polygon with
    gmap5.polygon(lat, long, color = 'red')

gmap5.draw( "map.html" )

只要x和y中的相应列表具有相同的长度，就不会有任何问题。

有没有一种方法可以使用Python在一个图形上绘制多个多边形

1 个答案: