def _newVolume(self,data,copyFrom=None,rescale=True):
"""Takes a numpy array and makes a geoprobe volume. This
volume can then be written to disk using the write() method."""
data = np.asarray(data)
#Set up the header Dictionary
if copyFrom is not None:
# Assume the string is the filname of a geoprobe volume
if isinstance(copyFrom, basestring):
copyFrom = volume(copyFrom)
try:
self.headerValues = copyFrom.headerValues
except AttributeError:
raise TypeError('This does not appear to be a valid'\
' geoprobe volume object')
else:
# Set default attributes
for varname, info in _headerDef.iteritems():
setattr(self, varname, info['default'])
(self.originalnx, self.originalny, self.originalnz) = data.shape
if rescale:
self.v0 = data.min()
self.dv = data.ptp() / 255.0
data -= self.v0
data /= self.dv
self.data = self._fixAxes(data)
def _newVolume(self, data, copyFrom=None, rescale=True, fix_axes=True):
"""Takes a numpy array and makes a geoprobe volume. This
volume can then be written to disk using the write() method."""
data = np.asarray(data)
#Set up the header Dictionary
if copyFrom is not None:
# Assume the string is the filname of a geoprobe volume
if isinstance(copyFrom, basestring):
copyFrom = volume(copyFrom)
try:
self.headerValues = copyFrom.headerValues
except AttributeError:
raise TypeError('This does not appear to be a valid'\
' geoprobe volume object')
else:
# Set default attributes
for varname, info in _headerDef.iteritems():
setattr(self, varname, info['default'])
(self.originalnx, self.originalny, self.originalnz) = data.shape
if rescale:
self.v0 = data.min()
self.dv = data.ptp() / 255.0
data -= self.v0
data /= self.dv
if fix_axes:
data = self._fixAxes(data)
self._data = data
def read_header(self):
"""Reads and returns the header of a geoprobe volume."""
header = dict()
for varname, info in _headerDef.iteritems():
self._file.seek(info['offset'])
value = self._file.readBinary(info['type'])
header[varname] = value
return header
def read_header(self):
"""Reads and returns the header of a geoprobe volume."""
header = dict()
for varname, info in _headerDef.iteritems():
self._file.seek(info['offset'])
value = self._file.readBinary(info['type'])
header[varname] = value
return header
def write_header(self, header):
"""Write the values in the dict "header" to the file."""
for varname, info in _headerDef.iteritems():
value = header.get(varname, info['default'])
self._file.seek(info['offset'])
self._file.writeBinary(info['type'], value)
def write_header(self, header):
"""Write the values in the dict "header" to the file."""
for varname, info in _headerDef.iteritems():
value = header.get(varname, info['default'])
self._file.seek(info['offset'])
self._file.writeBinary(info['type'], value)