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| author | Lane Kolbly <lane.kolbly@ni.com> | 2021-04-14 14:37:10 -0500 |
|---|---|---|
| committer | Aaron Rossetto <aaron.rossetto@ni.com> | 2021-04-15 14:00:34 -0500 |
| commit | 1efdc3a7f6cba76cf475dbc8cc0862981981f9e0 (patch) | |
| tree | a774d300c105d849efeb5dddf0592ca428bb14e3 /host/examples/ascii_art_dft.hpp | |
| parent | 184999c54f0f30a7952d4e8560b393730c00e353 (diff) | |
| download | uhd-1efdc3a7f6cba76cf475dbc8cc0862981981f9e0.tar.gz uhd-1efdc3a7f6cba76cf475dbc8cc0862981981f9e0.tar.bz2 uhd-1efdc3a7f6cba76cf475dbc8cc0862981981f9e0.zip | |
examples: Add min dynamic range limit to ascii art DFT example
The DFT plotting routine hangs when the dynamic range equals zero,
so this change adds a limit so that the dynamic range never goes
below 10.
Diffstat (limited to 'host/examples/ascii_art_dft.hpp')
| -rw-r--r-- | host/examples/ascii_art_dft.hpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/host/examples/ascii_art_dft.hpp b/host/examples/ascii_art_dft.hpp index fe411e400..73e627519 100644 --- a/host/examples/ascii_art_dft.hpp +++ b/host/examples/ascii_art_dft.hpp @@ -233,6 +233,10 @@ std::string dft_to_plot(const log_pwr_dft_type& dft_, float dyn_rng, float ref_lvl) { + if (dyn_rng <= 0.0) { + throw std::runtime_error("dyn_rng must be greater than zero in dft_to_plot"); + } + frame_type frame(width, height); // fill this frame // re-order the dft so dc in in the center |