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S2S v4.3 updates #24

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14 changes: 11 additions & 3 deletions lib/scenes2strips.py
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,10 @@ class RasterDimensionError(Exception):
def __init__(self, msg=""):
super(Exception, self).__init__(msg)

class RasterValueError(Exception):
def __init__(self, msg=""):
super(Exception, self).__init__(msg)

class MetadataError(Exception):
def __init__(self, msg=""):
super(Exception, self).__init__(msg)
Expand Down Expand Up @@ -1035,14 +1039,18 @@ def loadData(demFile, matchFile, orthoFile, ortho2File, maskFile, metaFile, targ

demFile_srs = rat.extractRasterData(rat.openRaster(demFile), 'spat_ref')

z, x_dem, y_dem, spat_ref = rat.extractRasterData(rat.openRaster(demFile, target_srs, 'bilinear'), 'array', 'x', 'y', 'spat_ref')
z, x_dem, y_dem, spat_ref, nodata_val = rat.extractRasterData(rat.openRaster(demFile, target_srs, 'bilinear'), 'array', 'x', 'y', 'spat_ref', 'nodata_val')
if spat_ref.IsSame(target_srs) != 1:
raise SpatialRefError("DEM '{}' spatial reference ({}) mismatch with strip spatial reference ({})".format(
demFile, spat_ref.ExportToProj4(), target_srs.ExportToProj4()))

# Fail if any input pixel is infinite
if np.any(np.isinf(z)):
#warnings.warn("DEM '{}' contains infinite values".format(demFile))
raise RasterValueError("DEM '{}' contains infinite values".format(demFile))

# A DEM pixel with a value of -9999 is a nodata pixel; interpret it as NaN.
# TODO: Ask Ian about the following interpretation of nodata values.
z[(z < -100) | (z == 0) | (z == -np.inf) | (z == np.inf)] = np.nan
z[(z == nodata_val) | np.isinf(z)] = np.nan

check_srs = rat.extractRasterData(rat.openRaster(matchFile), 'spat_ref')
if check_srs.IsSame(demFile_srs) != 1:
Expand Down