On my system the histogramm widget does not work, neither by itself nor in the measurement functionality. Instead of proper scaling the f(x) range is from -1 to 1 and no bins are visible.
Build on/with
Windows Vista 64 Bit
VTK 5.4.0
ITK 3.16
QT 4.6
| Status | Assigned | Task | ||
|---|---|---|---|---|
| Resolved | None | T3207 Make ImageStatistics View open source | ||
| Resolved | None | T3334 Histogramm widget does not work |
A small update: this seems to be related to the configuration of VTK and/or Qt.
Observerved different behaviors under the following four configurations:
1.) VTK 5.4.2 32 Bit with VTK_USE_QVTK_QT_OPENGL = ON
QT 4.6.1
2.) VTK 5.4.2 32 Bit with VTK_USE_QVTK_QT_OPENGL = OFF
QT 4.6.1
3.) VTK 5.4.0 64 Bit with VTK_USE_QVTK_QT_OPENGL = OFF
QT 4.6.0
4.) VTK 5.4.0 32 Bit with VTK_USE_QVTK_QT_OPENGL = ON
QT 4.5.1
I just tried the "Histogram to Clipboard" button. That one works just fine as far as I can tell.
Changing 'related platforms' to 'all', the histogram is not drawn also on Mac OS X, but the information is there ( copying to clipboard works properly ). The shown scale in widget is [-1, 1]
Histogram is not visible on Fedora 12 64bit with Qt 4.6.2 and VTK 5.4.0. I don't know about the VTK_USE_QVTK_QT_OPENGL switch. Do you now how I can find out? I only have the installed version, not the build directory.
Tested for the OPENGL Flag:
VTK 5.4.0 64 Bit with VTK_USE_QVTK_QT_OPENGL = ON
ITK 3.16
QT 4.6
VTK 5.4.0 64 Bit with VTK_USE_QVTK_QT_OPENGL = OFF
ITK 3.16
QT 4.6
Added patch using some of the vtk chart test code in the histogram cpp to study behaviour.
[SVN revision 21802]
FIX (#3334): Initialize QItemModel correctly (by setting row AND column count) to make the histogram widget work again with new Qt versions