I usually turn on the 'interpolate' option within Pick which allows the 'pick ray' to intersect the nearest actual data rather than requiring you to hit it precisely. (Actually, there are 3 'interpolate' states described in the docs for Pick, so read up on it and see which applies to you.)
Then the Pick will contain both the actual coordinate and any data attached to it.
Probe's main utility is in creating a starting point in 3-space for things like a bounds box (Construct) or a streamline start (and lots of other things, but not what you are doing). The name is misleading in that regard (I know: I used to poke at brains in a former life, as a neurobiology student).
<x-tad-bigger>____________________________
Chris Pelkie
Vice President
Conceptual Reality Presentations, Inc.
30 West Meadow Drive
Ithaca, NY 14850</x-tad-bigger><x-tad-bigger>
</x-tad-bigger>
On Nov 26, 2004, at 0:25, Herman, David ((NIH/NIMH)) wrote:
Hello,
I have a dx file that creates the image of a brain. In order to find
the coordinates of specific points of interest, I use the probe tool.
However, when I search the actual text in the dx file for those output
coordinates, the don't exist. Does anyone know how I can prevent this from
happening? Also, the data is 4-d (three coordinates and the four is a brain
measure); Is there a way to output all 4 coordinates, and not just the first
3?
thanks for your time,
dave
