Generates publication-quality S-parameter plots & polar plots. Plot are saved as an enanced Windows metafile (.emf file) that can be resized with no loss of quality.

To a large part, WinSPP has been superseded by InspectDR. InspectDR has more control over plots, and is more portable than WinSPP. Note, however, that WinSPP still has a few advantages for the moment:

• Supports polar plots (sometimes useful for transmission coefficients).
• Exports to .emf format: At the moment, .emf is easier to integrate into most Windows application (when compared to .svg).

• WinSPP: Simple graphical interface to load/preview/save plots.
• WinSPPcl: Even simpler command-line tool.

Certain versions of StarOffice/OpenOffice (/LibreOffice?) incorrectly interpret the enhanced metafile text angle by a factor of -1. This generates very unpleasant plots. WinSPP can compensate for this issue:

• Check "Compensate for StarOffice bug" in WinSPP (gui).
• Use -fixso switch in WinSPPcl (command-line tool).

Click here for a description of the input file format.

WinSPPcl.exe: Generates S-parameter/polar plot .emf files.

Example:
   WinSPPcl.exe [OPTIONS] [OUTPUT_FILE.emf] < [INPUT_FILE.plot]

OPTIONS:
   -h: Show this help.
   -fixso: Compensates for StarOffice EMF text angle bug.

• Currently generates plots using the older 32-bit windows GDI interface. As a result, the preview window does not leverage anti-aliasing effects.
• Does not support plot titles
• Does not support legends

WinSPP is currently provided as two small programs written in Visual Studio 2013. It should be straightforward to compile with VS2013 by opening/building from the solution file: VisualStudio2013/WinSPP/WinSPP.sln.

This software is provided "as is", with no guarantee of correctness. Use at own risk.

WinSPP was thrown together circa 2005 in order to produce publication-quality S-parameter plots. It is an extremely bare bones plotting tool... but it seems to work.