PyDVT A Python package for data displaying

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PyDVTA Python package for data displaying

• Jorg Klora
• Gilles Berruyer
• Emmanuel Papillon
• Nicolas Pascal
• Alexandre Gobbo

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Whats PyDVT?

• Package containing Python base classes for data
  visualization applications.

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Objective

• Easy remake of existing ESRF graphical tools in
  Python.
• Easy creation of simple graphic applications in
  beamlines (on-line acquisition)
• Standarize graphical application development
• Attempt to share model with Scisoft (off-line
  analysis).

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Requirements

• Tk or Qt? GUI toolkit independent.
• Generic data abstraction layer.
• Independent and extensible modules.
• Performance.
• Multi-Platform.
• Easy of use.
• Simple and complex cases.

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Tkinter x Pyqt Simple Example

• Tk
• import Tkinter
• from SPSData import
• from ImageView import
• root Tkinter.Tk ()
• dataSPSData (RefreshInterval100)
• view ImageView (root)
• view.SetSource ( ColormapFilter (None,
  RectSelection(data)))
• data.SetSource (sys.argv1)
• data.LoadSource (sys.argv2)
• view.Show ()
• root.mainloop ()

• Qt
• import qt
• from SPSData import
• from ImageView import
• root qt.Qapplication (sys.argv)
• dataSPSData (RefreshInterval100)
• view ImageView (None)
• view.SetSource ( ColormapFilter (None,
  RectSelection(data)))
• data.SetSource (sys.argv1)
• data.LoadSource (sys.argv2)
• view.Show ()
• root.setMainWidget (View)
• root.exec_loop ()

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Even Simpler Example (NumPy)

• Tk
• import Tkinter
• from ImageView import
• from Numeric import
• root Tkinter.Tk ()
• view ImageView (root)
• arr Numeric.ones ((500,500))
• view.SetData(Image(arr))
• view.Show ()
• root.mainloop ()

• Qt
• import qt
• from ImageView import
• from Numeric import
• root qt.Qapplication (sys.argv)
• view ImageView (None)
• arr Numeric.ones ((500,500))
• view.SetData(Image(arr))
• view.Show ()
• root.setMainWidget (View)
• root.exec_loop ()

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Examples...
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More Information...

• www.esrf.fr/computing/bliss/python/PyDVT