本文整理汇总了Python中shapely.geometry.Polygon.distance方法的典型用法代码示例。如果您正苦于以下问题：Python Polygon.distance方法的具体用法？Python Polygon.distance怎么用？Python Polygon.distance使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类shapely.geometry.Polygon的用法示例。
在下文中一共展示了Polygon.distance方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: iter_chars_on_line
# 需要导入模块: from shapely.geometry import Polygon [as 别名]
# 或者: from shapely.geometry.Polygon import distance [as 别名]
def iter_chars_on_line(chars, line, start_len, step=0.6):
'''
Yields single character geometries placed on line.
:param chars: iterable generated by ``generate_char_geoms``
:param line: :class:`shapely.geometry.LineString`
:param start_len: length or start position on line as int or float
:param step: distance a character is moved on line at each iteration
(decrease for more accuracy and increase for faster rendering)
:yields: character geometries as :class:`shapely.geometry.MultiLineString`
'''
# make sure first character is not rendered directly at the edge of the line
cur_len = max(start_len, 1)
# geometry containing path of all rotated characters
text_geom = Polygon()
for paths, width, spacing in chars:
cur_len += spacing
last_rad = None
for _ in xrange(30):
# get current position on line
pos = line.interpolate(cur_len)
# get radians of gradient
rad = linestring_char_radians(line, cur_len, width)
#: only rotate if radians changed
if rad != last_rad:
rot_coords = tuple(tuple(rotate_coords(geom, rad))
for geom in paths)
last_rad = rad
# move rotated char to current position
rot = MultiPolygon(tuple(
Polygon(tuple(translate_coords(c, pos.x, pos.y)))
for c in rot_coords
))
# check whether distance to previous characters is long enough
if (
text_geom.distance(rot) >= spacing
or text_geom.geom_type == 'GeometryCollection'
):
text_geom = text_geom.union(rot)
cur_len += width
yield rot
break
cur_len += step示例2: zip
# 需要导入模块: from shapely.geometry import Polygon [as 别名]
# 或者: from shapely.geometry.Polygon import distance [as 别名]
for park_bureau,bureau_color in zip(park_bureaus, bureau_colors):
park_json_file = open(park_bureau + '.geojson')
park_json_data = load(park_json_file)
park_features = park_json_data['features']
for park_feature in park_features:
coordinates = chain.from_iterable(park_feature['geometry']['coordinates'])
park_polygon = Polygon(map(tuple, coordinates))
min_distance = sys.maxsize
min_name = ""
for amtrak_station in amtrak_stations:
distance = park_polygon.distance(amtrak_station['coordinates'])
if distance < min_distance:
min_distance = distance
min_name = amtrak_station['station_name']
if park_feature['properties']['NAME1'] is not None :
park_name = park_feature['properties']['NAME1']
else :
park_name = ""
park_feature['properties'] = {}
park_feature['properties']['description'] = park_name + "<br>"
park_feature['properties']['description'] += "Closest Station: " + min_name + "<br>"
示例3: zip
# 需要导入模块: from shapely.geometry import Polygon [as 别名]
# 或者: from shapely.geometry.Polygon import distance [as 别名]
wr.field('x',fieldType='N',size=20,decimal=3)
wr.field('y',fieldType='N',size=20,decimal=3)
for [x,y] in valid_points:
wr.poly([[[x,y]]],shapeType=shapefile.POINT)
wr.record([x,y])
wr.save('shapes\\nexrad_points')
#--write a nearest-neighbor nexrad shapefile
wr = shapefile.writer_like(shapename_nex)
wr.field('group',fieldType='N',size=2,decimal=0)
pmap = {}
for shape,poly,record in zip(nexrad_shapes,nexrad_polygons,nexrad_records):
imin,dist = None,1.0e+30
for i,v in enumerate(valid_Points):
d = poly.distance(v)
if d < dist:
dist = d
imin = i
if imin in pmap.keys():
pmap[imin].append(record[0])
else:
pmap[imin] = [record[0]]
wr.poly([shape.points],shapeType=shape.shapeType)
record.append(imin)
wr.record(record)
wr.save('shapes\\nexrad_groups')
#--add the grouping to the grid shapefile
wr = shapefile.writer_like(shapename_grid)
wr.field('nex_group',fieldType='N',size=3,decimal=0)