def test_ggb_from_rio_dataset(self):
# get Land/Sea data file for this bounding box
utmZone = 56
utmDataPath = '/g/data/v10/eoancillarydata/Land_Sea_Rasters/WORLDzone%d.tif' % (utmZone,)
# read the data for the Flinders islet region
with rio.open(utmDataPath) as ds:
# get the gridded box for the full data extent
datasetGGB = GriddedGeoBox.from_dataset(ds)
# print
# print "For Land/Sea read via rasterio:"
self._land_sea_GGB_asserts(datasetGGB)
def no_test_ggb_subsets(self):
# get Land/Sea data file for this bounding box
utmZone = 56
utmDataPath = '/g/data/v10/eoancillarydata/Land_Sea_Rasters/WORLDzone%d.tif' % (utmZone,)
# read the data for the Flinders islet region
with rio.open(utmDataPath) as ds:
# get the gridded box for the full data extent
datasetGGB = GriddedGeoBox.from_dataset(ds)
flindersGGB = getFlindersIsletGGB()
window = datasetGGB.window(flindersGGB)
print('window=', window)
windowShape = (window[1][1] - window[1][0], window[0][1] - window[0][0])
print(windowShape)
# transform the origin of the window
windowOriginXY = (window[1][0], window[0][0])
print('windowOriginXY=', windowOriginXY)
windowOriginUTM = datasetGGB.affine * windowOriginXY
print('windowOriginUTM=', windowOriginUTM)
utm2wgs84 = osr.CoordinateTransformation(datasetGGB.crs, flindersGGB.crs)
windowOrigin = utm2wgs84.TransformPoint(windowOriginUTM[0], windowOriginUTM[1])
print('windowOrigin=', windowOrigin)
flindersOrigin = (150.927659, -34.453309)
print('flindersOrigin=', flindersOrigin)
diff = (flindersOrigin[0] - windowOrigin[0], flindersOrigin[1] - windowOrigin[1])
print('diff=', diff)
wgs842utm = osr.CoordinateTransformation(flindersGGB.crs, datasetGGB.crs)
(xUtm, yUtm, zzz) = wgs842utm.TransformPoint(flindersOrigin[0], flindersOrigin[1])
(xWgs84, yWgs84, zzz) = utm2wgs84.TransformPoint(xUtm, yUtm)
print('(xUtm, yUtm)= ', (xUtm, yUtm))
print('(xWgs84, yWgs84)=', (xWgs84, yWgs84))
if not windowShape == flindersGGB.shape:
self.fail("%s == %s" % (windowShape, flindersGGB.shape))
def no_test_ggb_copy_and_rereference(self):
# get Land/Sea data file for this bounding box
utmZone = 56
utmDataPath = '/g/data/v10/eoancillarydata/Land_Sea_Rasters/WORLDzone%d.tif' % (utmZone,)
# read the data for the Flinders islet region
with rio.open(utmDataPath) as ds:
# get the gridded box for the full data extent
datasetGGB = GriddedGeoBox.from_dataset(ds)
# dataset will be UTM
# print datasetGGB
# copy to WSG84
newGGB = datasetGGB.copy(crs='EPSG:4326')
def test_convert_coordinate_to_image(self):
"""
Test that an input image/array co-ordinate is correctly
converted to a map co-cordinate.
Simple case: The first pixel.
"""
# get Land/Sea data file for this bounding box
utmZone = 56
utmDataPath = '/g/data/v10/eoancillarydata/Land_Sea_Rasters/WORLDzone%d.tif' % (utmZone,)
# read the data for the Flinders islet region
with rio.open(utmDataPath) as ds:
# get the gridded box for the full data extent
datasetGGB = GriddedGeoBox.from_dataset(ds)
ximg, yimg = datasetGGB.convert_coordinates(datasetGGB.origin, to_map=False)
self.assertTrue((0, 0) == (ximg, yimg))
def no_test_ggb_subsets(self):
# get Land/Sea data file for this bounding box
utmZone = 56
utmDataPath = '/g/data/v10/eoancillarydata/Land_Sea_Rasters/WORLDzone%d.tif' % (utmZone,)
# read the data for the Flinders islet region
with rio.open(utmDataPath) as ds:
# get the gridded box for the full data extent
datasetGGB = GriddedGeoBox.from_dataset(ds)
flindersGGB = getFlindersIsletGGB()
scale = 0.00025
shapeYX = (3, 3)
origin = (150.0, -34.0)
corner = (shapeYX[1] * scale + origin[0], origin[1] - shapeYX[0] * scale)
ggb = GriddedGeoBox(shapeYX, origin)
assert ggb is not None
self.assertEqual(shapeYX, ggb.shape)
self.assertEqual(origin, ggb.origin)
self.assertEqual(corner, ggb.corner)
def test_convert_coordinate_to_map_offset(self):
"""
Test that an input image/array co-ordinate is correctly
converted to a map co-cordinate using a pixel centre offset.
Simple case: The first pixel.
"""
# get Land/Sea data file for this bounding box
utmZone = 56
utmDataPath = '/g/data/v10/eoancillarydata/Land_Sea_Rasters/WORLDzone%d.tif' % (utmZone,)
# read the data for the Flinders islet region
with rio.open(utmDataPath) as ds:
# get the gridded box for the full data extent
datasetGGB = GriddedGeoBox.from_dataset(ds)
xmap, ymap = datasetGGB.convert_coordinates((0, 0), centre=True)
# Get the actual centre co-ordinate of the first pixel
xcentre, ycentre = datasetGGB.convert_coordinates((0.5, 0.5))
self.assertTrue((xcentre, ycentre) == (xmap, ymap))
