Beispiel #1
0
    def test_extent(self):

        # It should work exact same for any projection
        args = dict(nxny=(9, 9), dxdy=(1, 1), x0y0=(0, 0), proj=wgs84)
        g1 = Grid(**args)
        assert_allclose(g1.extent, g1.extent_in_crs(crs=g1.proj), atol=1e-3)

        args = dict(nxny=(9, 9),
                    dxdy=(30000, 30000),
                    x0y0=(0., 1577463),
                    proj=gis.check_crs('+init=epsg:26915'))
        g2 = Grid(**args)
        assert_allclose(g2.extent, g2.extent_in_crs(crs=g2.proj), atol=1e-3)

        exg = np.array(g2.extent_in_crs(crs=g1))
        exgx, exgy = g1.ij_to_crs(exg[[0, 1]], exg[[2, 3]], crs=wgs84)

        lon, lat = g2.corner_grid.ll_coordinates
        assert_allclose([np.min(lon), np.min(lat)], [exgx[0], exgy[0]],
                        rtol=0.1)

        p = g2.extent_as_polygon(crs=g2.proj)

        assert p.is_valid
        x, y = p.exterior.coords.xy
        assert_allclose([np.min(x), np.max(x),
                         np.min(y), np.max(y)], g2.extent)
Beispiel #2
0
    def test_extent(self):

        # It should work exact same for any projection
        args = dict(nxny=(9, 9), dxdy=(1, 1), ll_corner=(0, 0), proj=wgs84)
        g1 = Grid(**args)
        assert_allclose(g1.extent, g1.extent_in_crs(crs=g1.proj), atol=1e-3)

        args = dict(nxny=(9, 9), dxdy=(30000, 30000), ll_corner=(0., 1577463),
                    proj=pyproj.Proj(init='epsg:26915'))
        g2 = Grid(**args)
        assert_allclose(g2.extent, g2.extent_in_crs(crs=g2.proj), atol=1e-3)

        exg = np.array(g2.extent_in_crs(crs=g1))
        exgx, exgy = g1.ij_to_crs(exg[[0, 1]], exg[[2, 3]], crs=wgs84)

        lon, lat = g2.corner_grid.ll_coordinates
        assert_allclose([np.min(lon), np.min(lat)], [exgx[0], exgy[0]],
                        rtol=0.1)
Beispiel #3
0
    def test_extent(self):

        # It should work exact same for any projection
        args = dict(nxny=(9, 9), dxdy=(1, 1), ll_corner=(0, 0), proj=wgs84)
        g1 = Grid(**args)
        assert_allclose(g1.extent, g1.extent_in_crs(crs=g1.proj), atol=1e-3)

        args = dict(nxny=(9, 9),
                    dxdy=(30000, 30000),
                    ll_corner=(0., 1577463),
                    proj=pyproj.Proj(init='epsg:26915'))
        g2 = Grid(**args)
        assert_allclose(g2.extent, g2.extent_in_crs(crs=g2.proj), atol=1e-3)

        exg = np.array(g2.extent_in_crs(crs=g1))
        exgx, exgy = g1.ij_to_crs(exg[[0, 1]], exg[[2, 3]], crs=wgs84)

        lon, lat = g2.corner_grid.ll_coordinates
        assert_allclose([np.min(lon), np.min(lat)], [exgx[0], exgy[0]],
                        rtol=0.1)