def testSimpleCreation(self):
# file = NexusUtils.createNexusFile(self.abspath)
# g = file.getGroup("/ScanFileHolder:NXentry/datasets:NXdata", True)
# lazy = NexusUtils.createLazyWriteableDataset("heading1", Dataset.FLOAT64, [10, 100000], None, None)
# file.createData(g, lazy)
# dataIn = DatasetFactory.createRange(lazy.getSize(), Dataset.FLOAT64)
# dataIn.shape = lazy.getShape()
# lazy.setSlice(None, dataIn, SliceND.createSlice(lazy, None, None))
# file.close()
# os.remove(self.abspath)
# This cannot work as the saved file is _NOT_ a valid SRS format
# sfh.save(AsciiScanFileHolderSaver(self.abspath+"_srs"));
#
dataIn = DatasetFactory.createRange(1000000, Dataset.FLOAT64)
dataIn.shape = [10, 100000]
sfh = ScanFileHolder()
sfh.addDataSet("heading1", dataIn)
# sfh.load(SRSLoader(self.abspath+"_srs"));#@UndefinedVariable
# os.remove(self.abspath)
sfh.save(SimpleNexusSaver(self.abspath))
file = NexusUtils.openNexusFileReadOnly(self.abspath)
g = file.getGroup("/ScanFileHolder:NXentry/datasets:NXdata", False)
dataOut = file.getData(g, "heading1").getDataset().getSlice()
file.close()
if dataIn != dataOut:
self.fail("dataIn != dataOut")
def saveImage(self, filename):
path = self.filepath + filename
if self.ds is None:
raise Exception("Epics GigE Camera %s has not acquired an image" % self.name)
else:
sfh = ScanFileHolder()
sfh.addDataSet("Image",self.ds)
sfh.save(PNGSaver(path))
def saveImage(self, filename):
path = self.filepath + filename
if self.ds is None:
raise Exception("Epics GigE Camera %s has not acquired an image" %
self.name)
else:
sfh = ScanFileHolder()
sfh.addDataSet("Image", self.ds)
sfh.save(PNGSaver(path))
def savePNGFile(self, fileName, dataset):
if os.path.exists(fileName) and os.path.isfile(fileName):
print "File " + fileName + " already exist. Choose another name."
return False
#PNG file writer from GDA Analysis package
sfh = ScanFileHolder()
sfh.setAxis("PeemImage", dataset)
sfh.save(PNGSaver(fileName))
return True
