[Rtk-users] how to draw geometric phantom in RTK?

[Aurélien Coussat]

Hi,
As far as I understand it, the text file accepts all geometries shown
in https://en.wikipedia.org/wiki/Quadric, except parabolic cylinder and
paraboloid family (as detailed in the last line of http://wiki.openrtk.
org/index.php/RTK/Scripts/DrawGeometricPhantom).The parameters x, y and
z refer to the position of the quadric in the space, while a, b and c
refer to its size in each of the dimension, respectively. The parameter
beta refers to its rotation. The parameter "gray" refers to the value
of your phantom within the quadric. Note that gray values add up: for
instance if you want a sphere whose value is 2 within a bigger sphere
whose value is one, both of them should have the parameter "gray" set
to one.
Hope that this is clearer now!
Aurélien.
On Wed, 2019-06-05 at 16:46 +0800, Jianbing wrote:
> Hi:
>         I want to use RTK to draw a geometric phantom. But the only
> thing I could find is <RTK/Scripts/DrawGeometricPhantom>, and there
> is only a simple txt file. I could not find any document about how to
> draw a geometric phantom with such command, what is the meaning of
> each parameters in the txt file?
> rtkdrawgeometricphantom --phantomfile GeometricPhantom.txt -o
> newPhantom.mha
>        Furthermore, what documents shoud I refer to to modify these
> parameters in order to generate my own phantom?
>        Thanks in advance.
> 
> 
> 
> 
> 
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