APASview
Quick Reference
Loading kinematic data from APAS .3d
files:
When the APAS .3D file is created the
following information is stored:
1. Marker displacement (trajectory) in 3
dimensional space (X,Y,Z)
2. Marker velocity in 3 dimensional space (X,Y,Z)
3. Marker acceleration in 3 dimensional space (X,Y,Z)
Normally this information is used for the
display the trajectory of the stickfigures, but can also be used as numerical data. In
some investigations it can be useful to watch a stickfigure along with centre of gravity,
velocity of a tennisraket, or the acceleration of the knee in walking.
1. Open a new instance of the DataWindow
2. Click on 
in the DataWindow speedbutton panel bring up the set-up window.
3. The datatype must be specified to load the
correct type of data. It is possible to choose between three different types of kinematic
data:
1. APAS Displacement
2. APAS Velocity
3. APAS Acceleration
4. Double click in the FileName textbox and
use the fileopen window to locate an APAS .3D file.
5. Only 16 channels of kinetic data can be
simultaneously displayed in a DataWindow. Do not select more than 16 channels from the
MarkerList.
If you leave this selection untouched the
first 16 markers will be selected automatically.
6. Select one of four direction (X, Y, Z or
resultant).
7. Exit the DataWindow set-up.
8. The kinetic data will be loaded just after
the set-up window is closed.
9. Use the runtime configuration menu for
further configuration of channel color, name, rectify and show.
Loading analog data from APAS .ANA files:
1. Open a new instance of the DataWindow
2. Click on
in the DataWindow speedbutton
panel bring up the set-up window.
3. Set the datatype to APAS ANA.
4. Double click in the FileName text box and
use the fileopen window to locate an APAS .ANA file.
5. Select a trial from the TrialList.
6. If you have selected a file containing
less than 16 channels (check the # of Channels): Proceed at index number 9.
7. A selection of the channels of interest is
necessary. If this operation is avoided the first 16 channels will be displayed (jump to
index 9). Double click the selected trial in the TrialList.
8. Select the channels you want to display in
the DataWindow. If you double click the item 'Trial List' you will get the complete Trial
List again.
9. Exit the DataWindow set-up.
10. The Datafile is loaded.
11. Use the runtime configuration menu for
further configuration of channel color, name, rectify and show.
Loading numerical data from
binary and text files:
1. Open a new instance of the DataWindow
2. Click on in the DataWindow speedbutton panel bring up the set-up window.
3. Set the data type to Text or Binary (real
6 byte, real 4 byte, longint 4 byte, integer 2 byte, word 2 byte, byte)
4. Double click in the FileName textbox and
use the fileopen window to locate a text file or a binary file.
5. Configure the number of channels.
6. Exit the DataWindow set-up (press the
set-up window button OK).
7. The Datafile is loaded.
8. Use the runtime configuration menu for
further configuration of channel color, name, rectify and show.
Loading joint angle data from APAS .3D
files:
1. Open a new instance of the DataWindow
2. Click on in the DataWindow speedbutton panel bring up the set-up window.
3. Select the APAS angle datatype.
4. Double click in the FileName textbox and
use the fileopen window to locate an APAS .3D file.
5. Before the APASview can load the angle
data two segments must be defined, a proximal and a distal. For this purpose three markers
must be selected from the makerlist.
This example will demonstrate the definition
of the knee joint angle: The hip marker defines the proximal marker, and a knee marker
defining the joint marker, all together defining a thigh segment. Last the ankle marker
together with the knee marker defines the calf segment. With this set up the APASview
calculates the joint angle of the knee joint.
6. Select CCW/CW for calculating counter
clockwise or clockwise.
7. Exit the DataWindow set-up.
8. The joint data will be loaded just after
the set-up window is closed.
9. Use the runtime configuration menu for
further configuration of channel color, name, rectify and show.
Loading stickfigure (Marker Trajectory)
data into the StickWindow:
1. Open a new instance of the StickWindow
2. Click on the button to bring up the set-up window.
3. Double click in the File Name textbox and
use the fileopen window.
4. When closing the open file window the
configuration of the stick figure is loaded.
5. Change marker connections of the stick
figure if necessary.
6. Exit set-up window.
7. The file is loaded and the stick figure is
displayed on the canvas
Loading forceplate data into the StickWindow:
The forceplate data can be displayed with and
without marker trajectory. The loading for both situations is the same.
1. Open a new instance of the StickWindow
2. Click on the button to bring up the set-up window.
3. If marker trajectory has to displayed
together with the forceplate vectors, the marker trajectory file should be loaded prior to
loading the forceplate data.
4. Double click in the Forceplate File Name
textbox and use the fileopen window.
5. Select the forceplate orientation
6. Select the Y+ direction of the clibration
frame with respect to X+ direction.
7. Select where the reference marker is
placed on the forceplate
8. Enable or disable the visual display of
the forceplates.
9. Select a reference marker for the
alignment of the forceplates. If the APASview should use the parameters aligning the
second forceplate in respect to the first using the information from the APAS .ANA file,
the reference marker #2 must be cleared out.
10. Exit set-up window. Only the OK button
will load the data.
Scaling of the force vector is done at run
time. Activate the StickWindow containing the forceplate data, press the shift button and
move the mouse up and down.
