Commit e436c757 authored by jlaura's avatar jlaura
Browse files

Merge pull request #60 from kree/adjacency 

Basic 'calculate overlap' funcationality working* on cubes
parents 6d411b5e d394aaec

autocnet/fileio/io_gdal.py

+39 −6
Original line number Diff line number Diff line 
import pvl

import os

import warnings



from pysal.cg.shapes import Polygon

from autocnet.utils.utils import find_in_dict, find_nested_in_dict

from osgeo import ogr

import numpy as np

import gdal

import osr
@@ -191,12 +195,35 @@ class GeoDataset(object): 
    @property

    def latlon_extent(self):

        if not getattr(self, '_latlon_extent', None):

            try:

                xy_extent = self.xy_extent

                lowerlat, lowerlon = self.pixel_to_latlon(xy_extent[0][0], xy_extent[0][1])

                upperlat, upperlon = self.pixel_to_latlon(xy_extent[1][0], xy_extent[1][1])

                self._latlon_extent = [(lowerlat, lowerlon), (upperlat, upperlon)]

            except:

                warnings.warn("Couldn't calculate a Latitude/Longitude extent")

                self._latlon_extent = None



        return self._latlon_extent



    @property

    def footprint_polygon(self):

        if not getattr(self, '_pvl_header', None):

            self._pvl_header = pvl.load(self.file_name) # Should be a member variable?

            polygon_pvl = find_in_dict(self._pvl_header, 'Polygon')

            start_polygon_byte = find_in_dict(polygon_pvl, 'StartByte')

            num_polygon_bytes = find_in_dict(polygon_pvl, 'Bytes')



            # TODO: Do we really need to re-open the file here? self.dataset does not work

            f = open(self.file_name, 'r+')

            f.seek(start_polygon_byte - 1)

            wkt = f.read(num_polygon_bytes)

            polygon = ogr.CreateGeometryFromWkt(wkt)

            self._footprint_polygon = polygon

            f.close()

        return self._footprint_polygon





    @property

    def xy_extent(self):

        if not getattr(self, '_xy_extent', None):
@@ -220,8 +247,14 @@ class GeoDataset(object): 


        """

        if not getattr(self, '_bounding_box', None):

            try:

                latlons = self.latlon_extent # Will fail without geospatial data

                self._bounding_box = cg.standalone.get_bounding_box([cg.shapes.LineSegment(latlons[0], latlons[1])])

                print(list(self._bounding_box))

            except:

                envelope = self.footprint_polygon.GetEnvelope()

                self._bounding_box = [envelope[0], envelope[2], envelope[1], envelope[3]] # TODO: check me?

                print(self.bounding_box)

        return self._bounding_box



    @property

autocnet/graph/tests/test_network.py

+14 −0
Original line number Diff line number Diff line
@@ -76,6 +76,20 @@ class TestFromList(unittest.TestCase): 


    def test_graph_length(self):

        self.assertEqual(self.graph.__len__(), 3)

        self.assertEqual(self.graph.number_of_nodes(), 3)



class TestFromListCubes(unittest.TestCase):

    @classmethod



    def setUpClass(cls):

        filelist = [get_path('AS15-M-0297_sub4.cub'),

                    get_path('AS15-M-0298_sub4.cub'),

                    get_path('AS15-M-0299_sub4.cub')]

        cls.graph = network.CandidateGraph.from_filelist(filelist)



    def test_graph_length(self):

        self.assertEqual(self.graph.number_of_nodes(), 3)

        self.assertEqual(self.graph.number_of_edges(), 3)



class TestEdge(unittest.TestCase):