domains. It allows to export waveform and spectrum charts as BMP, PNG or SVG images.
Recognized input file formats:
*.wav ... waveform audio files (PCM formats)
*.wfm ... Rigol oscilloscope waveform files (tested with Rigol DS1052E)
*.wv ... modulation waveforms for Rohde&Schwarz SMU200 vector signal generator
Requirements:
Basic knowledge of windowed FFT spectrum analysis
Any version of Windows that supports Direct2D API (Server 2008, Vista, 7, ...)
Download:
wfm_view.zip
Usage:
wfm_view <input file> [-align]
The program searches the directory containing <input file> for files with the same
extension. You can scroll through these files using the "<" and ">" toolbar buttons.
The "-align" switch causes the program to align itself with the current active window.
This is handy when configuring WFM Viewer as an external viewer for file managers like
Altap Salamander or Total Commander.
Keyboard Shortcuts:
Ctrl+O ... open a different file
Ctrl+R ... reload current file (in case some other program changed it)
Limitations:
Maximum input signal length is 8M samples. If the input file is longer, only the first
8M samples are read.
Maximum window length for FFT spectrum analysis is 1M sample.
Chart Controls:
--------------------------------------------------------------------------------------
| | Control | Action | Modifiers |
|--------------------------------------------------------------------------------------|
| M | Left Double-click | Reset view | Control, Shift |
| o | Right Button + Move | Pan view | Control, Shift |
| u | Left Button + Move | Selection-based zoom (L>R: in, R>L: out) | Control, Shift |
| s | | Move legend | (none) |
| e | Right Button Click | Pop-up chart menu | (none) |
| | Wheel Up/Down | Zoom in/out (around cursor or annotation) | Control, Shift |
|---|-----------------------------------------------------------------|----------------|
| K | Arrows | Pan view | (none) |
| e | Shift/Caps + Arrows | Zoom in/out (around cursor or annotation) | (none) |
| y | Return/Clear | Reset view | Control, Shift |
| b | Dot/Decimal | Move mouse position to center | Control, Shift |
| o | Home, End | Move horizontal view to start/end | (none) |
| a | Page Up, Page Down | Move vertical view to top/bottom | (none) |
| r | Backspace | Undo zoom | (none) |
| d | Space | Redo zoom | (none) |
| | Control + '+' | Increase DPI | (none) |
| | Control + '-' | Decrease DPI | (none) |
| | Control + '0' | Set system DPI | (none) |
| | Control + 'L' | Legend on/off | (none) |
| | Control + 'A' | Annotation on/off | (none) |
| | Control + 'D' | Copy annotation (mind keyboard focus :o) | (none) |
| | Control + 'C' | Copy image | (none) |
| | Control + 'S' | Save image | (none) |
| | Control + '1'..'9' | Curve visibility on/off | (none) |
--------------------------------------------------------------------------------------
Screenshots:
