Hi,
can you instantiate a mitk::MedSAFETrackingDevice somewhere else in the
code successfully? In a unit test maybe?
Do you use the mitkClassMacro correctly in MedSAFETrackingDevice?
- Jochen
Von: Kostas Pachopoulos [mailto:[email protected]]
Gesendet: Mittwoch, 3. Juni 2009 17:41
An: [email protected]
Betreff: [mitk-users] mitkIGT: cxx0030 error: expression cannot
beevaluated- while trying to create new TrackingDevice
Hi all,
i have a header file with the following:
class CrossRef {
...
private:
boost::shared_ptr<boost::thread> magtracker_reader;
mitk::MedSAFETrackingDevice::Pointer tracker;
mitk::TrackingDeviceSource::Pointer source;
....
and i try to implement in a separate cpp file:
void CrossRef::initMagneticTracker() {
tracker= mitk::MedSAFETrackingDevice::New(); //error thrown HERE
source = mitk::TrackingDeviceSource::New();
source->SetTrackingDevice(tracker);
source->Connect();
source->StartTracking();
}
The CrossRef constructor is the default one. The problem is, that an
"cxx0030 error: expression cannot be evaluated" is thrown by
itksmartpointer.h at:
SmartPointer &operator = (ObjectType *r)
{
if (m_Pointer != r)
....
Any ideas?
Thanks,
KP
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