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  • Data processing with Workflows
  • Running scripts in the Python perspective
  • Visualising multidimensional data in DExplore Hyperview
  • Creating movies from HDF5 stacks

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Experiment with writing scripts to analyse data (either the example data or your own), the instructors in the class will be happy to help with any questions/problems you might have.

DExplore Hyper3D

Hyper3D is a view added to DExplore for visualising 3 dimensional datasets. DAWN 1.2 contains the first version with this view, included for user feedback and collecting further requirements.

The Hyper3D view was specifically designed to work with hyperspectral image datasets (stacks of images where each images corresponds to a different wavelength and a single pixel traced down the stack is a spectrum), but it also works well for other stacks of images.

  • Go the the DExplore perspective and open the example file 315029.dat.
  • Select the Pilatus dataset, and in the dataset inspector select Hyper3D from the inspector tab
  • What shape is this dataset?
  • Select eta as the trace-coord, drag the Hyper3D view to a convenient place and double click the tab to maximise the view

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The two plots in this view show different sections of the 3D pilatus dataset. The image shows the dimensions perpendicular to the dimension selected as the trace-coord. The actual image shown is an integration of the image stack over the window shown in the trace plot on the right.

  • Move the region on the right hand plot, what happens to the image on the left hand plot?

The trace in the right hand plot shows the average of all the traces corresponding to the pixels selected by the box region on the image.

  • Move the region on the left hand plot, what happens to the trace on the right hand plot?
  • Add more regions to the image, using the Create New Profile toolbar action. Traces can be exported to a .dat file using the Export... toolbar action.

Experiment with your own 3D datasets (or ask for more exciting datasets), the instructors in the class will be happy to help with any questions/problems you might have.

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