def getDrease(self, criteria):
poly_list = []
for poly in self.polys:
if criteria == 'length':
left, bottom, right, top = GeoFunc.checkBoundValue(poly)
poly_list.append([poly, right - left])
elif criteria == 'height':
left, bottom, right, top = GeoFunc.checkBoundValue(poly)
poly_list.append([poly, top - bottom])
else:
poly_list.append([poly, Polygon(poly).area])
poly_list = sorted(poly_list, key=lambda item: item[1],
reverse=True) # 排序，包含index
dec_polys = []
for item in poly_list:
dec_polys.append(item)
return dec_polys
def updateBound(self):
'''
更新包络长方形
'''
border_left, border_bottom, border_right, border_top = GeoFunc.checkBoundValue(
self.cur_polys[-1])
if border_left < self.border_left:
self.border_left = border_left
if border_bottom < self.border_bottom:
self.border_bottom = border_bottom
if border_right > self.border_right:
self.border_right = border_right
if border_top > self.border_top:
self.border_top = border_top
self.border_height = self.border_top - self.border_bottom
self.border_width = self.border_right - self.border_left
