Film Strip
The film strip is a visualization of a video file. By default, it displays the video that is associated with the data (See Project Manager). It displays frames of the video along a time axis. Additionally, the frame at the time of the current cursor position is always shown. Thus, it is a good stimulus visualization to couple with other time-based visualizations. See "Add to Window" for information on how to couple visualizations.
Figure 1: A Film Strip Visualization
Aggregation
The film strip is not able to aggregate, as each film strip requires the entire space of its window.
Settings
- Time Column:
- In order to display the film strip correctly, a video time in the data must be present, which is used for synching the video to the displayed data. Select this column here. If the time unit for the Video time is not set, it is assumed to be given in seconds. If you have problems displaying your video, set the time unit for the video time column in the properties section of the data node where the data originates.
- Video Time Factor:
- A factor that can be used to adapt the video time before it is used. Normally, there should be no need to set this value to anything other than 1, if the time unit is set correctly for the video time. It can be used to adjust the video time, if you only have a time column that does not properly sync to the video time.
- Video Time Offset:
- This value can be used to offset the start of the video regarding the start of the data. This value is assumed to be in the same time unit as the Time Column. If the unit of the Time Column is unknown, or if the Time Column is a TimeStamp or DateTime value, the Offset is assumed to be given in seconds.
- Media Selection:
Determines, how the video, that is being displayed, is selected. There are two different options:
- Project:
- The video is selected according to the stimulus association you can set in the Project Manager.
- Manual:
- You can select the video via the Manual Media Association.
Note that regardless of the setting, all media need to be have been added in the Project Manager, even if they are used via the "Column" or "Manual" option and thus no association is set in the Project Manager.
- Manual Media Association:
- Associates media with scenario/participant combinations, if Media Selection is "Manual". This setting can be used, if you have several media files per scenario/participant combination and want to display another one than is associated in the Project Manager.