[vtkusers] get vtkImageData point

[Bill Lorensen]

Use
vtkImageData:: ComputeStructuredCoordinates

https://www.vtk.org/doc/nightly/html/classvtkImageData.html


On Thu, Oct 19, 2017 at 6:38 AM, arwtyxouymz <arw.tyx-ouy_mz at ezweb.ne.jp> wrote:
> Hi,
>
> I get the pixel value from x-y-z real-world coordinate.
> For getting pixel value, by vtkImageData Class Reference, GetScalarPoint is
> useful but its arguments are only int, i-j-k points of image.
>
> So I want to convert real-world x-y-z coordinate to image i-j-k points and
> get pixel value.
> If there is directory converting method, please tell me.
>
> Or
> I could convert x-y-z coordinate to vtkIdType by using FindPoint method.
> So, please tell me the method converting vtkIdType to image i-j-k points.
>
> Please help!
>
>
>
>
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