本文整理匯總了Python中Polygon.Polygon.addContour方法的典型用法代碼示例。如果您正苦於以下問題：Python Polygon.addContour方法的具體用法？Python Polygon.addContour怎麽用？Python Polygon.addContour使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類Polygon.Polygon的用法示例。
在下文中一共展示了Polygon.addContour方法的5個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: shape_center
# 需要導入模塊: from Polygon import Polygon [as 別名]
# 或者: from Polygon.Polygon import addContour [as 別名]
def shape_center(shape):
"""
computes the center of gravity of a shapefile multi-polygon
"""
from Polygon import Polygon
parts = shape.parts[:]
parts.append(len(shape.points))
# check for countries that cross the 180° longitude
far_east = False
far_west = False
for i in range(len(parts)-1):
pts = shape.points[parts[i]:parts[i+1]]
if len(pts) == 0: continue
if pts[0][0] < -90:
far_west = True
if pts[0][0] > 90:
far_east = True
poly = Polygon()
for i in range(len(parts)-1):
pts = shape.points[parts[i]:parts[i+1]]
if far_east and far_west:
# correct points
for j in range(len(pts)):
if pts[j][0] < 0: pts[j][0] += 360
poly.addContour(pts)
return poly.center()示例2: restore_poly_from_path_str
# 需要導入模塊: from Polygon import Polygon [as 別名]
# 或者: from Polygon.Polygon import addContour [as 別名]
def restore_poly_from_path_str(path_str):
"""
restores a list of polygons from a SVG path string
"""
contours = path_str.split('Z') # last contour may be empty
from Polygon import Polygon as Poly
poly = Poly()
for c_str in contours:
if c_str.strip() != "":
pts_str = c_str.strip()[1:].split("L")
pts = []
for pt_str in pts_str:
x, y = map(float, pt_str.split(','))
pts.append((x, y))
poly.addContour(pts, is_clockwise(pts))
return poly示例3: apply_contours
# 需要導入模塊: from Polygon import Polygon [as 別名]
# 或者: from Polygon.Polygon import addContour [as 別名]
def apply_contours(self, contours):
"""
constructs a Polygon from contours
"""
self.contours = contours
from Polygon import Polygon as GPCPoly
poly = GPCPoly()
skip = 0
for pts_ in contours:
pts = []
for pt in pts_:
if 'deleted' in pt and pt.deleted is True:
skip += 1
continue
pts.append((pt[0], pt[1]))
ishole = utils.is_clockwise(pts)
if len(pts) > 2:
poly.addContour(pts, ishole)
self.poly = poly示例4: generate_polygon
# 需要導入模塊: from Polygon import Polygon [as 別名]
# 或者: from Polygon.Polygon import addContour [as 別名]
def generate_polygon(coords, scale):
"""
Generate a polygon that encompasses a set of grid coordinates.
:param coords: List of coordinates to draw polygon around
:param scale: Area around each grid square (1/scale in degrees is area of each point)
:return: Polygon of area representing the set of points
:return: Polygon of area representing the set of points
"""
out_poly = Polygon()
h_step = 0.51/scale
for pos in coords:
# sum up each polygon
out_poly.addContour([
(pos[0] - h_step, pos[1] - h_step),
(pos[0] + h_step, pos[1] - h_step),
(pos[0] + h_step, pos[1] + h_step),
(pos[0] - h_step, pos[1] + h_step)
])
out_poly.simplify()
return out_poly示例5: Polygon
# 需要導入模塊: from Polygon import Polygon [as 別名]
# 或者: from Polygon.Polygon import addContour [as 別名]
HEX_HEIGH = 24
f1,f2 = 19, 25
fname = sys.argv[1]
img = Image.open(fname)
img.putalpha(0xFFFFFF)
poly = Polygon()
poly.addContour([
(0,HEX_HEIGH),
(f1,HEX_HEIGH*2),
(f1+f2,HEX_HEIGH*2),
(f1+f1+f2,HEX_HEIGH),
(f1+f2,0),
(f1,0)
])
w,h = img.size
for x in range(w):
for y in range(h):
if poly.isInside(x,y):
continue
img.putpixel((x, y), 0)