Display Module FAQ

Online.Display Module FAQ

Published on Friday, December 13, 1996 by Gideon Ariel

Module FAQDisplay


We are currently adding the “Plate” capability to the Display module so that
one work with the summed channels with a Kistler plate.

Regarding to Export at a data rate different that the original video
recording rate, I believe you cam enter a value diferent that the frame rate
& the program will interpolate data at the requested rate. Let me know if I
am wrong.

Also you reported that the Display module did not show video field by field
but rather frame by frame. Unless I am mistaken the program should be able to
advance field by field, but depending on exactly what data has been selected,
it may not appear that this is so. There can be a number of data sets active
which may have at different time interval associated with each one. The
program displays the data synchronized so it may be that on set the data does
not display each possible data point when stepping to the next time.  When
stepping to the next time to display, the program uses the data set from the
grid of active data sets with the longest time between data points to
determine the next time for which to display data. So if the selected data
set is at 30hz for a graph then the video will display images at 30hz as
well. Let me know if I am mistaken.

Best, Jeremy

In a message dated 9/30/99 2:09:12 PM Eastern Daylight Time,
info@arieldynamics.com writes:

<< > Could you give me a sign when I may download the new version?
 > BTW I noticed that the DISPLAY-module when graphing ANA-files
 > only gives the seperate channels and not the calculated ones as
 > does the ANALOG-module. But for the moment we only use the
 > ANALOG-module to display and export. I noticed also that when
 > exporting values from a ANA-file we can give start and end time
 > (seconds) and the step. That step is depending of the rate (Hz) of
 > the recording. Should it be possible in the future that the step is a
 > fraction of time? for example 0.01 second. If this should be
 > possible then it would be possible that (with a good
 > synchronisation of course) one could see the video-file and the
 > force-plate curves evoluate at the same time…

Hello Susan,

I will provide answers below each of your questions.
Please contact me for any additional information.

John Probe
Email: info@arieldynamics.com

At 04:56 PM 03/31/2000 -0500, you wrote:
>I have been exploring how to use our somewhat new system and I have
>several questions/problems:
> 1. Can you graph the raw data (prior to filtering)? If so, how? If
>not, why not?
Yes! These procedures can be found in the Display program help file. Raw data can be graphed before or after filtering using the following steps:
a. Open the display program
b. Select the 3D icon and select the desired sequence.
c. Select the NEW 3D button to specify the data trial.
d. You will see the option to select RAW POSITION in the QUANTITY column.
e. Select the OK button to graph the data.

> 2. Can you export the raw data (before filtering)? If so, how? If
>not, why not?
Yes! These procedures can be found in the Display program help file. Raw data can also be exported using the following steps.
a. Follow steps a through e listed above
b. Select GRAPH, DATA to display the graph options. Make certain that RAW ONLY is selected in the Curves section.
c. Select OK to graph the data.
d. Select EXPORT, WORKSHEET, NEW and name the worksheet.
e. Select the OPEN button to create the worksheet.
f. Select EXPORT, WORKSHEET, SAVE to display the Export Channel Options menu.
g. Enter the Caption, X-Axis Start/End and X Increment values and press the OK button to save the data to the worksheet.

> 3. Why do some files for digitizing start at a time other than 0.0
The 0.0 time is determined by the Synchronizing Point specified in the Digitizing Module. If no Synch Point is specified by the user, the software assumes that the first from is the Synch Point and therefore, sets the time for the first image equal to 0.0 seconds.

> 4. How can you reset the timer to start at 0.0 s?
The Time Value can be set to 0.0 only be specifying the Synch Point at the point where you wish the time to equal 0.0 seconds.

> 5. Why won’t the export feature in ‘Display’ export the data points
>if the time does not start at 0.0? (I have a file that starts at 0.700
>sec going to 1.2 s. When I try to export, I get header only, no data)
I have tried to repeat this situation and the data exports as expected. Therefore, there is either something wrong in the procedure or something different in your data file. I suggest you follow the steps listed in Questions 1 & 2 above. If you are still experiencing problems exporting data, then you should attach the files to an Email and send them to me for examination. We would need the *.CF, *.1t (and all other related *.t files), and the *.3d file where * indicates your sequence name.

> 6. I tried to pad and manipulate the time in ‘Display’ and
>’Transform’ but to no avail.
See Answers 3 & 4 above.

We are always happy to assist! Hope you have a great weekend!

>Sue Chinworth
>Elon College Dept of Physical Therapy Education
>2085 Campus Box
>Elon College, NC 27244

Hello Donna,

There are several programs available for the printing, graphing and export
functions.  A brief description of them is listed below.

APAS2TEXT – used to export the data for each individual point that has been
digitized.  This data is exported to ASCII format so the user can perform
“custom” analysis.

APASVIEW – Used to simultaneously display graphs, video, spreadsheet data.

DISPLAY – Very similar to APASView but also includes ability to export the
graphed data to worksheet format for additional analysis by Lotus, Excel

Each of these modules also have the Windows pull-down help files for
additional information.

I hope this helps to answer your questions.


John Probe

—– Original Message —–
From: “Donna Ziarkowski” <donnaz@uplink.net>
To: “Gideon Ariel” <info@arieldynamics.com>
Sent: Monday, June 11, 2001 4:20 AM
Subject: Re: APAS Video Codecs

> John,
> Could you tell me what function in APAS 2000 has replaced the
> “graphing”  function of APAS 1997?  I am able to digitize, transform and
> filter but am not quite sure how to graph and export.
> Thank you, once again, for your assistance.
> Donna