2008 Summer Project Week:PerformanceTuningFiducials - Revision history

Naucoin: /* Key Investigators */

2008-06-27T13:32:27Z

Key Investigators

Naucoin: /* Key Investigators */

2008-06-27T12:59:31Z

Key Investigators

Naucoin: /* References */

2008-06-26T17:22:28Z

References

Show changes

Naucoin: /* Key Investigators */

2008-06-26T17:18:58Z

Key Investigators

Naucoin at 21:22, 23 June 2008

2008-06-23T21:22:36Z

Naucoin: /* Key Investigators */

2008-06-12T20:10:53Z

Key Investigators

Naucoin: /* Key Investigators */

2008-06-12T20:10:40Z

Key Investigators

Naucoin at 17:57, 12 June 2008

2008-06-12T17:57:46Z

Naucoin: New page: {| |Project Week Main Page ]] |[[Image:Slicer3DWidgets1.jpg|thumb|320px|Current state of Fiducials in Slicer...

2008-06-12T17:57:24Z

New page: {| |thumb|320px|Return to [[2008_Summer_Project_Week|Project Week Main Page ]] |[[Image:Slicer3DWidgets1.jpg|thumb|320px|Current state of Fiducials in Slicer...

New page

{|
|[[Image:ProjectWeek-2008.png|thumb|320px|Return to [[2008_Summer_Project_Week|Project Week Main Page]] ]]
|[[Image:Slicer3DWidgets1.jpg|thumb|320px|Current state of Fiducials in Slicer]]
|[[Image:Slicer3DWidgets2.jpg|thumb|320px|Progress]]
|}

__NOTOC__

===Key Investigators===
* BWH: Nicole Aucoin
* Isomics: Steve Pieper, Alex Yarmarkovich
* Kitware: Will Schroeder

<div style="margin: 20px;">

<div style="width: 27%; float: left; padding-right: 3%;">

<h1>Objective</h1>

Increase responsiveness of fiducials in Slicer.

</div>

<div style="width: 27%; float: left; padding-right: 3%;">

<h1>Approach, Plan</h1>

Our approach is to clear up issues with existing strategies, and then tune the fiducials to be efficient when there are 200 in the scene at once.

''ctest -R Slicer3FiducialsTest2'' or ''source ../Slicer3/Libs/MRML/Testing/testFiducialAdd.tcl''

Our plan for the project week is to first collaborate on debugging, tracking down the causes of segmentation faults during rendering with more efficient widget management algorithms, and using the Event Broker to track cascades of events.<br>
The goal is to avoid having to remove all fiducials from the scene and deleting them before readding them to reflect any changes in the MRML node.<br>
If time permits, a redesign of the fiducials frame work will be sketched out, to take full advantage of the vtk widgets in VTK5.2.
</div>

<div style="width: 40%; float: left;">

<h1>Progress</h1>

TBD...

</div>

<br style="clear: both;" />

</div>

===References===
*

← Older revision		Revision as of 13:32, 27 June 2008
Line 44:		Line 44:

	Updating MRML node, GUI and widget to not rely on Modified events.		Updating MRML node, GUI and widget to not rely on Modified events.
		+
		+	Will is going to update the vtkSeedWidget in VTK to provide a new base platform for the fiducials. Nicole will adapt it into what Slicer3 needs. Goal: revamped and solid by RSNA.

	</div>		</div>

← Older revision		Revision as of 12:59, 27 June 2008
Line 42:		Line 42:

	Updated the fiducial list widget to use the event broker to add observations on the fiducial list node. Immediate result was an immense slow down. Logged to file when moving a fiducial in the 3D window and got the dot file below.		Updated the fiducial list widget to use the event broker to add observations on the fiducial list node. Immediate result was an immense slow down. Logged to file when moving a fiducial in the 3D window and got the dot file below.
		+
		+	Updating MRML node, GUI and widget to not rely on Modified events.

	</div>		</div>

@@ Line 41: / Line 41: @@
 <h1>Progress</h1>
-TBD...
+Updated the fiducial list widget to use the event broker to add observations on the fiducial list node. Immediate result was an immense slow down. Logged to file when moving a fiducial in the 3D window and got the dot file below.
 </div>

@@ Line 1: / Line 1: @@
 {|
 |[[Image:ProjectWeek-2008.png|thumb|320px|Return to [[2008_Summer_Project_Week|Project Week Main Page]] ]]
-|[[Image:Slicer3Fiducials1.jpg|thumb|320px|Current state of Fiducials in Slicer]]
+|[[Image:Slicer3_125Fids.jpg|thumb|320px|Current state of Fiducials in Slicer]]
 |}

@@ Line 12: / Line 12: @@
 * BWH: Nicole Aucoin
 * Isomics: Steve Pieper, Alex Yarmarkovich
-* Kitware: Will Schroeder
+* Kitware: Will Schroeder, Sebastien Barre

@@ Line 33: / Line 33: @@
 ''ctest -R Slicer3FiducialsTest2'' or ''source ../Slicer3/Libs/MRML/Testing/testFiducialAdd.tcl''
-Our plan for the project week is to first collaborate on debugging, tracking down the causes of segmentation faults during rendering with more efficient widget management algorithms, and using the Event Broker to track cascades of events.<br>
+Our plan for the project week is to first collaborate on debugging, tracking down the causes of segmentation faults during rendering with more efficient widget management algorithms, and using the Event Broker to track cascades of events. A secondary bottleneck is in the vtkKWMultiColumnList, as updating it as fiducials are added takes a long time.<br>
 The goal is to avoid having to remove all fiducials from the scene and deleting them before readding them to reflect any changes in the MRML node.<br>
 If time permits, a redesign of the fiducials frame work will be sketched out, to take full advantage of the vtk widgets in VTK5.2.
@@ Line 49: / Line 49: @@
 </div>
 ===References===
+*