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class DxfDrawing(object):
"""
Represents intermediate model of DXF drawing. It is useful in iterating
through exported object and for easy change the DXF handling library.
"""
def __init__(self):
self._entities = {}
self._layers = {}
self._views = []
self._vports = []
self._blocks = []
def isEmpty(self):
return len(self._entities) == 0
def addEntity(self, type, **kwargs):
if type not in self._entities:
self._entities[type] = []
self._entities[type].append(kwargs)
def addLayer(self, name, color):
self._layers[name] = color
def containsLayer(self, name):
return name in self._layers
def addBlock(self, block):
self._blocks.append(block)
def containsBlock(self, blockname):
return blockname in self._blocks
def convert(self, **kwargs):
""" Converts this drawing into DXF representation object """
raise NotImplementedError()
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