McIDAS-X User's Guide
Version 2023.1

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RVF

Restores virtual frames saved with command SVF.


Format

RVF bframe eframe name


Parameters

bframe

beginning frame number of the current session to load (default=1)

eframe

ending frame number of the current session to load (default=bframe)

name

file name used to save the frames with the SVF command; if no extension is specified, .PIX is automatically appended


Remarks

RVF restores the image, graphics, frame directory, navigation, image enhancement and the graphics table that were present on each of the frames when they were saved with command SVF. Full image and graphics functionality is retained so you can use commands like EG, ERASE, EU, GU, K and W. If you're running a session with independent graphics, you can also use commands like SF, SG, J and Y to display or loop the restored image and graphics frames independently.

Virtual frames can only be restored to frames the same size as the original. Use command LVF with FORM=ALL to list the size of each of the virtual frames so you can restore them to frames of the correct size with RVF.

The frames specified in RVF acquire the panel configuration that the virtual frames had when they were saved with the SVF command. For example, if a virtual frame with four panels is restored to a single-panel frame, the frame is reconfigured to have four panels.

Frames saved with SVF on little endian workstations (e.g., PC systems) can only be restored with RVF on the same workstation or other little endian workstations. Likewise, frames saved with SVF on big endian workstations can only be restored with RVF on the same workstation or other big endian workstations.


See Also

Use the SVF command to save virtual frame files. Use LVF to list virtual frame files.


Examples

RVF 1 5 PICTURE

This entry loads the first five frames from the file PICTURE.PIX into frames 1 through 5 of the current session.

RVF 19 19 PICTURE

This entry loads the first frame from the file PICTURE.PIX into frame 19 of the current session.


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