Example 8: The Extrapolator Tool
In this example, we focus on the extrapolation capability. This
is a linear extrapolation, using just two images. In order to
use this, you must supply the "time" information about each frame
-- either with the "times" parameter, or by encoding the time in
the file_of_filenames (perhaps within one of the filenames
itself).
We also added CSS to stretch the buttons across the entire width
of the display, plus a little spacing between them.
Here is the configuration file:
<![CDATA[
#debug=true
# config file for extrapolation example
controls = startstop,speed,step,zoom,toggle,extrap
controls_style = display:flex;flex-flow:row;
buttons_style = flex:auto;margin:2px;
file_of_filenames = fof8.txt
extrap_times_template={(\d\d\d\d)}
times_label_style = 0xffff00, -5, CDT, #222, 12px arial, true
]]>
When the user is selecting a target, the program jumps to the
first frame. After the user selects a target, it jumps to the
last frame. However -- the user can change frames from these
"default" ones at any time before clicking to select the target.