class BackImporter:
def __init__ (self, model, grid):
self.__model = model
self.__grid = grid
self.__cutter = ClipHelper(grid)
self.__preprocessor = Preprocessor()
def process (self, filename, minlevel, maxlevel):
self.__minlevel = minlevel
self.__maxlevel = maxlevel
cursize = 0
progress = Progress(filename, 0, os.stat(filename)[6])
for ln in open(filename):
if ln.startswith('AF'):
self.processAF(ln)
elif ln.startswith('LF'):
self.processLF(ln)
elif ln.startswith('LM'):
self.processLM(ln)
elif ln.startswith('PF'):
self.processPF(ln)
cursize += len(ln)
progress.update(cursize)
def processAF(self, af):
#if len(af) > 64*1024:
# return
grp = af.split(';')
transtype = transform_af(grp)
if transtype:
themecode, featcode = transtype
priority = int(grp[3])
name = self.__preprocessor.nominalizeName(grp[6])
polylist = []
for poly in grp[2].split('|'):
points = poly.split(',')
poly = [(int(points[i]), int(points[i+1])) for i in range(0, len(points), 2)]
#
polyList = [poly]
for level in range(self.__maxlevel-1, self.__minlevel-1, -1):
newPolyList = []
for poly in polyList:
for mesh, clipPoly in self.__cutter.clipPolygon(poly, level):
area = XBackArea()
area.priority = priority
area.themecode = themecode
area.featcode = featcode
area.name = name
area.polylist = [clipPoly]
# save
model = self.__model[level]
parcel = model.get(mesh)
if not parcel:
parcel = XParcel()
parcel.back_area_list.append(area)
model.put(mesh, parcel)
newPolyList.append(clipPoly)
polyList = newPolyList
themecode = 0
featcode = 0
def processLF (self, lf):
grp = lf.split(';')
transtype = transform_lf(grp)
if transtype:
themecode, featcode = transtype
priority = int(grp[3])
name = self.__preprocessor.nominalizeName(grp[6])
points = grp[2].split(',')
poly = [(int(points[i]), int(points[i+1])) for i in range(0, len(points), 2)]
for level in range(self.__minlevel, self.__maxlevel):
for meshcode, segment in self.__cutter.clipPolyline(poly, level):
edge = XBackEdge()
edge.themecode = themecode
edge.featcode = featcode
edge.polyline = segment
edge.name = name
model = self.__model[level]
parcel = model.get(meshcode)
if not parcel:
parcel = XParcel()
parcel.back_edge_list.append(edge)
model.put(meshcode, parcel)
def processLM (self, lm):
grp = lm.split(';')
transtype = transform_lm(grp)
if transtype:
point = tuple([int(x) for x in grp[2].split(',')])
name = self.__preprocessor.nominalizeName(grp[3])
for level in range(self.__minlevel, self.__maxlevel):
meshcode = self.__grid.getPointMesh(point, level)
node = XBackNode()
node.themecode = transtype[0]
node.featcode = transtype[1]
node.point = point
node.name = name
model = self.__model[level]
parcel = model.get(meshcode)
if not parcel:
parcel = XParcel()
parcel.back_node_list.append(node)
model.put(meshcode, parcel)
def processPF (self, pf):
grp = pf.split(';')
transtype = transform_pf(grp)
if transtype:
themecode, featcode = transtype
point = tuple([int(x) for x in grp[2].split(',')])
name = self.__preprocessor.nominalizeName(grp[6])
for level in range(self.__minlevel, self.__maxlevel):
meshcode = self.__grid.getPointMesh(point, level)
node = XBackNode()
node.themecode = themecode
node.featcode = featcode
node.point = point
node.name = name
model = self.__model[level]
parcel = model.get(meshcode)
if not parcel:
parcel = XParcel()
parcel.back_node_list.append(node)
model.put(meshcode, parcel)
