You're trying to do too much in one pass.
Create a net that opens the series, Selects a member, grids it and
exports it (this will be a field in a .dx file). You can set this net
up with a Sequencer to drive the Select and to change the output
filename via a Format, so it will be automatic.
Then create a series .dx file (just a list of strings, not the data)
that points to or assembles (however you like to think of it) all the
individual field files. You can type this out by hand as I have just
done, or if you program or write shell scripts, you can automate this
part of the process as well (but not using DX).
'series.dx' should look something like (double-check the doco for the
syntax: I'm writing this off the top of my head at 730am):
object "series" class series
member 0 position 0.0 value "field_001.dx"
member 1 position 1.0 value "field_002.dx"
...
Import that series.dx file into the net you are using now (minus the
Select/Autogrid stuff of course) and start streaking!
On Sunday, May 2, 2004, at 00:05 America/New_York, Allen H. Nugent
wrote:
Dear Users,
I want to form streaklines within a 3D vector field time-series, on a
scattered grid, using the Sequencer to advance the time frame. The
documentation asserts that this is possible, but does not provide an
explicit example that is sufficiently similar to my situation.
The documentation indicates that the appropriate option for the
{Streakline}<data> input, when using the Sequencer this way, is to
input the entire series. However, {Streakline} requires the input
field or series to have a 'connections' component, and {AutoGrid}
refuses to operate on the whole series. Thus, I don't see how it is
possible to input the entire series to {Streakline}, unless the source
data is a native DX file with a connections component (which mine
isn't).
If I use {Sequencer} and {Select} on the series, I can apply
{AutoGrid} to an individual series member and pass the output to the
<data> input of {Streakline}. But, if I then connect the {Sequcencer}
output to the <frame> input of {Streakline}, the latter module
produces the execution error: "Bad parameter: frame parameter given
out of sequence". (If I disconnect the <frame> input I get no
streaklines in the image, anyway).
As for the other inputs to {Streakline}, I supplied a line (created
using {Grid}) to <start>, and left the <time>, <head>, etc. inputs on
their defaults.
So, what am I doing wrong?
Thanks in advance!
Allen H. Nugent
Graduate School of Biomedical Engineering
University of New South Wales
Sydney NSW 2052 Australia
Tel: +61 2 9385 3916 Fax: +61 2 9663 2108
