[vtkusers] Locating a 3D position in 3D scheme from a XYZ coordinates

[Dean Inglis]

Hi Wagner,

 

how are m_XPosition, m_YPosition, m_ZPosition defined?

 

Given a 3D double precision 3D spatial point:

 

vktIdType id = m_CurrentImageData->FindPoint(xyzCoords)

if(id > -1)

{

//do what you need to do with the point: it's valid!

}

 

if you have integer ijk indices:

 

double queryPoint[3];

double dummyPcoords[3];

if(m_CurrentImageData->ComputeStructuredCoordinates(queryPoint,myijkindices,
dummyPcoords) == 1)

{

//the ijk indices refer to a point in the 3D image volume and you have a
valid 3D point

//otherwise, try with different ijk indices

}

 

HTH

Dean

 

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