Projects:ARRA:SlicerAM:Meeting20100921 - Revision history

Haehn at 21:00, 21 September 2010

2010-09-21T21:00:16Z

Haehn at 20:54, 21 September 2010

2010-09-21T20:54:52Z

Haehn: Created page with 'On Tuesday, 21st of September 2010 Wendy, Nicole, Steve and Daniel got together to look at the current Annotation module status. * Performance problems with multiple vtkBiDimens…'

2010-09-21T20:54:31Z

Created page with 'On Tuesday, 21st of September 2010 Wendy, Nicole, Steve and Daniel got together to look at the current Annotation module status. * Performance problems with multiple vtkBiDimens…'

New page

On Tuesday, 21st of September 2010 Wendy, Nicole, Steve and Daniel got together to look at the current Annotation module status.

* Performance problems with multiple vtkBiDimensionalWidgets (as an example, happens with all vtkWidgets) while rotating/zooming the 3D view
** Daniel wrote a test to place 5 vtkBiDimensionalWidgets isolated from 3D Slicer and DisplayableManagers - just pure VTK
*** The performance of this test is much better than 3D Slicer but delays are still visible
** We took process samples on Mac OS X to find the source of these problems
*** SlicerQT with 5 vtkBiDimensionalWidgets sampling:
*** TestAnnotationWidgetsStandalone with 5 vtkBiDimensionalWidgets sampling:
** A major performance loss was identified when rendering the texts next to the widgets
*** We deactivated the text display and the rendering performance in Slicer increased dramatically
*** Possible solution: hide all texts when the 3D window is rotated etc.

* Current status of Annotation module:
** Ruler, Bidimensional and Fiducials can be placed in 2D and 3D
*** Synchronization with MRML and among the 2D/3D views work
** The ruler should show the dividers on a fixed scale according to millimeter or cm
** Sometimes the placement of fiducials causes funky behavior
** Reformated Axis or changed orientations of the SliceNodes cause problems
** Sometimes the measurement display of rulers is not correct (f.e. a strange "4 4" display - maybe the sprintf function causes problems?)
** Undo worked but redo crashed
** MRML Save Scene should be checked

* Next step: Hierarchy
** API from Nicole is available in the trunk
** We probably do not need a separate Fiducial (lite) module (TBD later)
** There will be an invisible top hierarchy in which new annotations are added without creating a hierarchy
*** Then a new hierarchy can be added as a subset to each existing hierarchy
*** As soon as the first hierarchy gets created, the invisible top-level hierarchy will be a new visible hierarchy on the same level of the created one
** It should be possible to pass annotation hierarchies or only one type of annotations inside a hierarchy to Node Selectors and CLI modules
** Maybe extend the data module to provide an annotation view of the MRML tree?
*** BTW the data module crashed on drag and drop

* After hierarchy:
** Finish up property dialog

@@ Line 1: / Line 1: @@
 On Tuesday, 21st of September 2010 Wendy, Nicole, Steve and Daniel got together to look at the current Annotation module status.
 * Performance problems with multiple vtkBiDimensionalWidgets (as an example, happens with all vtkWidgets) while rotating/zooming the 3D view
@@ Line 5: / Line 6: @@
 *** The performance of this test is much better than 3D Slicer but delays are still visible
 ** We took process samples on Mac OS X to find the source of these problems
-*** SlicerQT with 5 vtkBiDimensionalWidgets sampling:
+*** SlicerQT with 5 vtkBiDimensionalWidgets sampling: [[File:sampleslicerqt.png|none|thumb|Sample results on Slicer]]
-*** TestAnnotationWidgetsStandalone with 5 vtkBiDimensionalWidgets sampling:
+*** Plain VTK (TestAnnotationWidgetsStandalone) with 5 vtkBiDimensionalWidgets sampling: [[File:sampleannotationtests.png|none|thumb|Sample results on plain VTK]]
 ** A major performance loss was identified when rendering the texts next to the widgets
 *** We deactivated the text display and the rendering performance in Slicer increased dramatically
 *** Possible solution: hide all texts when the 3D window is rotated etc.
 * Current status of Annotation module:
@@ Line 20: / Line 22: @@
 ** Undo worked but redo crashed
 ** MRML Scene Load and Save should be checked
 * Next step: Hierarchy
@@ Line 30: / Line 33: @@
 ** Maybe extend the data module to provide an annotation view of the MRML tree?
 *** BTW the data module crashed on drag and drop
 * After hierarchy:
 ** Finish up property dialog