Olivier,

Defining the dimensionality of each data intent is a good topic for
our next phone conference.

I propose the following:

NIFTI_INTENT_POINTSET, NIFTI_INTENT_VECTOR
Dimensionality=2
Dim0=#nodes
Dim1=3 (x, y, z components)

NIFTI_INTENT_TRIANGLE
Dimensionality=2
Dim0=#triangles
Dim1=3 (node numbers that form a triangle)

NIFTI_INTENT_RGB_VECTOR
Dimensionality=2
Dim0=#nodes
Dim1=3 (red, green, blue components)
Should the range of data values be (0, 255) or (0.0, 1.0)?

NIFTI_INTENT_RGBA_VECTOR
Dimensionality=2
Dim0=#nodes
Dim1=4 (red, green, blue, alpha components)
Should the range of data values be (0, 255) or (0.0, 1.0)?


NIFTI_INTENT_* (statistic)
NIFTI_INTENT_LABEL
NIFTI_INTENT_NODE_INDEX
NIFTI_INTENT_SHAPE
NIFTI_INTENT_TIME_SERIES

These intents can be either (I have no preference but we should pick
one):

Dimensionality=2
Dim0=#nodes
Dim1=1

or

Dimensionality=1
Dim0=#nodes


John

>
>>
>> By: Olivier Coulon
>>
>> Hello everybody,
>> trying to read the gii files uploaded by Ziad, the following
>> question arised
>> : when storing a data array of, say, 20000 triangles, one has to
>> write this :
>> Dimensionality="2"
>> Dim0="20000"
>> Dim1="3"
>> i.e. 20000 elements of dimension 3. When it comes to scalar data,
>> this transposes
>> to :
>> Dimensionality="2"
>> Dim0="20000"
>> Dim1="1"
>> i.e. 20000 elements of dimension 1, as given in John's example files.
>> In Ziad's files it is declared as :
>> Dimensionality="1"
>> Dim0="20000"
>> which is one element of dimension 20000.
>> Are both ways OK ? Or did I misunderstand something ?
>> Thanks,
>>
> Olivier