CIBC:Documentation:SCIRun:Reference:Teem:SelectTimeStepFromNrrd
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SelectTimeStepFromNrrd
Information
- Package: Teem
- Catagory: Misc
- Author(s): Martin Cole
- Status: Supported in latest version
- Version: 3.0
Description
Summary
The SelectTimeStepFromNrrd module allows users to select a single time step or column from a Misc that has a time axis. The user can also select a range of time indecies and send them to the output port one at a time. This module allows the user to animate Through a time series.
Detailed Description
When the module runs in interactive mode, the user selects which vectors they want to include in the playback. In the SelectTimeStepFromNrrd module dialog window, Start and End sliders enable the user to set the playback range, the Current Value function specifies which row or column to send downstream, and the Delay function controls the time delay and speed of the animated points on the mesh.
There are several Play Modes in the SelectTimeStepFromNrrd GUI dialog window: Once, Loop, Bounce1, and Bounce2. The Once mode plays the animation from current value to the end of the selected range of column and rows on the matrix. The Loop mode plays the selected range endlessly, reversing directions after reaching the start or end of the range. Bounce1 only plays endpoints once, while Bounce2 repeats them. For example, if the range is 1 through 3, Bounce1 will play { 1 2 3 2 1 2 3 2 1 . . .}, while Bounce2 will play {1 2 3 3 2 1 2 3 3 2 1}. Using the Delay text field in the GUI dialog window, the user specifies a delay (in milliseconds) that controls the speed at which the selected rows or columns may be sent to the output port.
The Increment entry can be used to skip through the input matrix by more than one element at a time. This can be used with the Send Amount entry to send more than one row/column at a time. For instance, if both entries are set to three, the module will send three rows/columns at a time, which can then be mapped onto a vector field by the MODULE REFERENCE module.
This module is much more efficient if the Time axis is the last (slowest) axis in the input NRRD. This is because the output of each timestep is a contiguous chunk of the input and can thus be sent as a pointer offset rather than an interleaved memory copy.
Frequently Asked Questions
Known Bugs
Recent Changes
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