def readdxf(infile):
infile = infile.readlines()
file_index = 0
block_record = []
block_record_start_flag = False
block_record_id_flag = False
block_record_end_flag = False
while block_record_end_flag == False:
infile[file_index] = infile[file_index].strip()
if infile[file_index] == 'BLOCK_RECORD':
block_record_start_flag = True
bloc = Block_Record()
elif infile[file_index] == '5':
block_record_id_flag = True
elif block_record_start_flag == True and block_record_id_flag == True:
bloc.name = infile[file_index]
#l = copy.copy(bloc)
block_record.append(bloc) #when using outside of class, you can append directly without the danger of overwriting
block_record_start_flag = False
block_record_id_flag = False
elif infile[file_index] == 'ENDTAB':
if infile[file_index+2].strip() == 'ENDSEC':
block_record_start_flag = False
block_record_id_flag = False
block_record_end_flag = True
file_index += 1
block_start_flag = False
return block_record
def readdxf(infile):
infile = infile.readlines()
file_index = 0
block_record = []
block_record_start_flag = False
block_record_id_flag = False
block_record_end_flag = False
#block record collection program start
#goes through dxf file and collects the unique ids of the blocks
while block_record_end_flag == False:
infile[file_index] = infile[file_index].strip()
if infile[file_index] == 'BLOCK_RECORD':
block_record_start_flag = True
bloc_rec = Block_Record()
elif infile[file_index] == '5':
block_record_id_flag = True
elif block_record_start_flag == True and block_record_id_flag == True:
bloc_rec.name = infile[file_index]
#l = copy.copy(bloc_rec)
block_record.append(bloc_rec) #when using outside of class, you can append directly without the danger of overwriting
block_record_start_flag = False
block_record_id_flag = False
elif infile[file_index] == 'ENDTAB':
if infile[file_index+2].strip() == 'ENDSEC':
block_record_start_flag = False
block_record_id_flag = False
block_record_end_flag = True
file_index += 1
#block record collection program end
block_list = []
block_section_end_flag = False
#block collection program start
while block_section_end_flag == False:
block_id_flag = False
block_acbdblockbegin_flag = False
block_end_flag = False
line_flag = False
polyline_flag = False
infile[file_index] = infile[file_index].strip()
if infile[file_index] == 'BLOCK':
block_start_flag = True
bloc = Block()
elif block_start_flag == True and infile[file_index] == '330':
block_id_flag = True
elif block_start_flag == True and block_id_flag == True:
bloc.id = infile[file_index]
block_id_flag = False
elif infile[file_index] == 'AcDbBlockBegin' and block_start_flag == True:
acbdblockbegin_flag = True
elif infile[file_index] == '2' and acbdblockbegin_flag == True and block_start_flag == True:
bloc.name = infile[file_index+1].strip()
elif infile[file_index] == 'AcDbLine' and acbdblockbegin_flag == True and block_start_flag == True:
line_flag = True
elif line_flag == True and acbdblockbegin_flag == True and block_start_flag == True:
if infile[file_index] == '10' and infile[file_index+2].strip() == '20':
lin = Line(bloc.name)
lin.x_start = entities[index+1].strip()
lin.y_start = entities[index+3].strip()
lin.x_end = entities[index+7].strip()
lin.y_end = entities[index+9].strip()
bloc.object_list['line'].append(lin)
line_flag = False
elif infile[file_index] == 'AcDbPolyline' and acbdblockbegin_flag == True and block_start_flag == True:
polyline_flag = True
elif polyline_flag == True and acbdblockbegin_flag == True and block_start_flag == True:
if infile[file_index] == '10' and infile[file_index+2].strip() == '20':
poly = Polyline(bloc.name)
x_coordinates = entities[file_index+1:file_index+14:4].strip()
y_coordinates = entities[file_index+3:file_index+16:4].strip()
x_coordinates = [float(item) for item in self.x_coordinates]
y_coordinates = [float(item) for item in self.y_coordinates]
poly.x_bl = min(self.x_coordinates)
poly.y_bl = min(self.y_coordinates)
poly.x_tr = max(self.x_coordinates)
poly.y_tr = max(self.y_coordinates)
bloc.object_list['poly'].append(poly)
polyline_flag = False
elif infile[file_index] == 'AcDbBlockEnd' and acbdblockbegin_flag == True and block_start_flag == True:
acbdblockbegin_flag = False
block_start_flag = False
block_list.append(bloc)
elif infile[file_index] == 'ENDSEC':
block_section_end_flag = True
block_id_flag = False
file_index += 1
