Error in edge fixed and extra imports in graph views removed.

            raise AttributeError('This edge does not yet have any matches computed.')

        matches, mask = self._clean(clean_keys)

        domain = self.source.handle.raster_size

        domain = self.source.geodata.raster_size

        # Massage the dataframe into the correct structure

        coords = self.source.get_keypoint_coordinates()

import math

import numpy as np

import networkx as nx

from autocnet.examples import get_path

from autocnet.fileio.io_gdal import GeoDataset

from matplotlib import pyplot as plt

import matplotlib