Hi there again,
I have been trying to implement some colouring in the fibers but nothing
changes.
I am basing my implementation of what I find in the MITK source, but
there is actually no plugin where colours of tracks get changed...
This is part of my code, and I get the correct cout´s:
Snippet
if(strcmp(cc,mitk::FiberBundleX::COLORCODING_ORIENTATION_BASED) ==0)
{
cout <<"1" << endl;
fiber->SetColorCoding(mitk::FiberBundleX::COLORCODING_ORIENTATION_BASED);
fiber->DoColorCodingOrientationBased();
}
else if(strcmp(cc,mitk::FiberBundleX::COLORCODING_FA_BASED)==0)
{
cout <<"2" << endl;
fiber->SetColorCoding(mitk::FiberBundleX::COLORCODING_FA_BASED);
fiber->DoColorCodingFaBased();
}
else //custom color
{
cout <<"3" << endl;
int rgbcolor[3];
rgbcolor[0] = 255;
rgbcolor[1] = 0;
rgbcolor[2] = 100;
fiber->SetColorCoding(mitk::FiberBundleX::COLORCODING_CUSTOM);
geometryNodeArray[0]->SetProperty("color",mitk::ColorProperty::New(rgbcolor[0],
rgbcolor[1], rgbcolor[2]));
geometryNodeArray[0]->Modified();
}
I dont know what I am missing...
btw, I am still using the MITK 2013.09.
Best,
Miguel
On 15.10.2014 11:31, Miguel Nunes wrote:
Thank you so much for the quick answer, Peter!
I managed to solve my translation issue.
Regarding the other question, I will investigate this setFAmap. If I dont
manage to get this working I will come back to you.
Best regards,
Miguel
On Wednesday, October 15, 2014 11:03 CEST, Peter Neher <p.ne...@dkfz-heidelberg.de> wrote:
Hi Miguel,
MITK always uses world coordinates for the fiber points. Thus, no
transformation is needed and the matrix is set to identity. The bounding
box of the fibers is different from the image bounding box since the
fibers don't necessarily have to occupy the same volume as the image
they were obtained from.
Regarding your second question, the fiber colors are calculated in the
FiberbundleX class. The default orientation colorcoding is calculated in
DoColorCodingOrientationBased() and a custom color coding, e.g. FA based
color coding, is done in the method "SetFAMap" of the FiberBundleX.
I hope that helps!
Cheers,
Peter
On 14.10.2014 18:18, Miguel Nunes wrote:
Hello MITK List,
I am having a interesting problem. I am loading a Track file (trk) and the
respective accompanying MR datasets and segmentations.
After loading the datasets, all datasets are correctly aligned in the
stdmultiwidget.
But for my plugin I need to access the transformation between the datasets and
I cannot achieve this. There is always some miss calculations. For example, if
I ask the geometry3D for the bounding box of the dataset, it gives me different
values comparing to when I get these values from the vtkPolyData inside the
mitkFiberBundleX. The two returning BB are not the same.
When I check the details of the Fiber dataset, it is only shown an identiy
matrix and the BBox, without any transformation. But the BBoxes of the track
and the MR image are different. So, how does MITK align them?
Also, I do not understand how the colors of the fibers get rendered. As far as I
have found there is only a
fib->SetColorCoding(mitk::FiberBundleX::COLORCODING_CUSTOM) (and similar) which
leads me nowhere. the render functions of geometry only lead me in circles...
Thank you!
Best regards,
Miguel Nunes
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Division Medical and Biological Informatics
Junior Group Medical Image Computing (MIC)
German Cancer Research Center (DKFZ)
Im Neuenheimer Feld 280
69120 Heidelberg
Germany
phone: +49 6221 42-3552
fax: +49 6221 42-2345
p.ne...@dkfz.de
http://www.dkfz.de/de/mbi/people/Peter_Neher.html
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