def slideToOrigin(self, poly):
bottom_pt, min_y = [], 999999999
for pt in poly:
if pt[1] < min_y:
min_y = pt[1]
bottom_pt = [pt[0], pt[1]]
GeoFunc.slidePoly(poly, -bottom_pt[0], -bottom_pt[1])
def slideToContainer(self):
# 平移部分形状
for index, poly in enumerate(self.polys):
right_pt = LPAssistant.getRightPoint(poly)
if right_pt[0] > self.cur_length:
delta_x = self.cur_length - right_pt[0]
GeoFunc.slidePoly(poly, delta_x, 0)
top_pt = self.poly_status[index][1]
self.poly_status[index][1] = [top_pt[0] + delta_x, top_pt[1]]
def placeFirstPoly(self):
poly = self.polygons[0]
left_index, bottom_index, right_index, top_index = GeoFunc.checkBound(
poly) # 获得边界
GeoFunc.slidePoly(poly, -poly[left_index][0],
-poly[bottom_index][1]) # 平移到左下角
def slideToBottomLeft(self):
'''移到最左下角位置'''
for poly in self.cur_polys:
GeoFunc.slidePoly(poly, -self.border_left, -self.border_bottom)
def minimizeOverlap(self):
start_time = time.time()
# 记录引导检索的相关内容
self.miu = [[1] * len(self.polys) for _ in range(len(self.polys))]
self.initialOverlap()
# 记录重叠变化情况
self.overlap_reocrd = []
# 检索次数限制/超出倍数退出
it, N = 0, 50
minimal_overlap = self.getTotalOverlap()
cur_overlap = minimal_overlap
print("初始重叠:", cur_overlap)
# 限定计算次数
print("开始一次检索")
while it < N:
print("it:", it)
# 获得随机序列并逐一检索
permutation = np.arange(len(self.polys))
np.random.shuffle(permutation)
for i in range(len(self.polys)):
# 选择特定形状
choose_index = permutation[i]
# 通过重叠判断是否需要计算
with_overlap = False
for item in self.pair_overlap[choose_index]:
if item > 0:
with_overlap = True
break
if with_overlap == False:
continue
# 获得当前的最小的深度（调整后），如果没有重叠，直接下一个
self.getPrerequisite(choose_index,
self.poly_status[choose_index][2],
offline=True)
cur_min_depth = self.getPolyDepeth(choose_index)
# 记录最优情况，默认是当前情况
original_position = self.poly_status[choose_index][1]
best_position, best_orientation, best_depth = self.poly_status[
choose_index][1], self.poly_status[choose_index][
2], cur_min_depth
# print("当前最低高度:",best_depth)
print("测试第", i, "个形状")
# 遍历四个角度的最优值
for orientation in [0, 1, 2, 3]:
# print("测试角度:",90*orientation,"度")
self.getPrerequisite(choose_index,
orientation,
offline=True)
self.getProblemLP()
new_position, new_depth = self.searchBestPosition(
choose_index) # 获得最优位置
if new_depth < best_depth:
best_position, best_orientation, best_depth = copy.deepcopy(
new_position), orientation, new_depth
# 如果有变化状态则需要更新overlap以及移动形状
if best_position != original_position:
print("本次检索最低深度：", best_depth)
# 更新记录的位置
self.poly_status[choose_index][1] = copy.deepcopy(
best_position)
self.poly_status[choose_index][2] = best_orientation
# 获取形状顶部位置并平移过去
new_poly = copy.deepcopy(
self.all_polygons[choose_index][best_orientation])
top_point = LPAssistant.getTopPoint(new_poly)
GeoFunc.slidePoly(new_poly,
best_position[0] - top_point[0],
best_position[1] - top_point[1])
# 更新形状与重叠情况
self.polys[choose_index] = new_poly
self.updateOverlap(choose_index)
# self.showPolys()
# 计算新方案的重叠情况
cur_overlap = self.getTotalOverlap()
self.overlap_reocrd.append(cur_overlap)
if cur_overlap < bias:
print("没有重叠，本次检索结束")
break
elif cur_overlap < minimal_overlap:
minimal_overlap = cur_overlap
it = 0
print("\n当前重叠:", cur_overlap, "\n")
it = it + 1
self.updateMiu()
# 超出检索次数
if it == N:
print("超出更新次数/超出倍数")
# self.showPolys()
end_time = time.time()
print("本轮耗时：", end_time - start_time)
print("最终结果：", self.polys)
print("当前状态：", self.poly_status)
with open(
"/Users/sean/Documents/Projects/Packing-Algorithm/record/fu_result.csv",
"a+") as csvfile:
writer = csv.writer(csvfile)
writer.writerows([[
time.asctime(time.localtime(time.time())),
end_time - start_time, self.cur_length,
self.total_area / (self.cur_length * self.width), cur_overlap,
self.poly_status, self.polys
]])
self.showPolys()
self.plotRecord("Overlap Record:", self.overlap_reocrd)
