<x-tad-bigger>____________________________
Chris Pelkie
Vice President (607) 257-8335
Conceptual Reality Presentations, Inc.
30 West Meadow Drive
Ithaca, NY 14850</x-tad-bigger>
On Apr 21, 2005, at 17:48, Matthew Bogosian wrote:
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Howdy all,
I am new to OpenDX, but am finding it quite useful. However, I am finding it difficult to extract certain metadata from my imports (which may very well stem from my own ignorance of OpenDX).
My problem is this:
I am trying to dynamically extract the number of grids in a certain dimension dynamically (so I can use the same .net program on different input data). What I have is effectively a sequence of three-dimensional data blocks in a single raw file. The length of the sequences can vary. I generate a .general header file for each raw data file with the appropriate dimensional data.
Currently, I can extract the size of all dimensions as a vector by doing:
Import(...) -> Extract("data") -> Inquire("grid counts")
This gives me (I think) an integer vector (e.g., [1024 768 6] (6 frames of 1024 x 768 data blocks). How can I extract the last dimension value as a scalar (which I then want to feed into my sequencer)?
I thought about multiplying the resultant vector by a mask (e.g., [0 0 1]) using Compute and then converting the result using Integer(...), but this seems to be a roundabout way to do what I want. Is there a better, or at least more direct way to extract a dimensional component of a vector?
-- Matt
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