diff options
| author | Peter Hutterer <peter.hutterer@who-t.net> | 2016-12-16 08:22:54 +1000 |
|---|---|---|
| committer | Peter Hutterer <peter.hutterer@who-t.net> | 2016-12-21 10:55:57 +1000 |
| commit | ec63ecd48599277ca9c30d6f906a96c5fdfd6a01 (patch) | |
| tree | b8d1bab5bb64fa4394506d2e3d6b4ce4fe9dc8c1 /tools | |
| parent | 84ab969c2656e4debdc71b1158e889677059f817 (diff) | |
tools: switch the ptraccel-debug printf to use mm/s
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/ptraccel-debug.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/tools/ptraccel-debug.c b/tools/ptraccel-debug.c index 4ecb7e8..4fcb45f 100644 --- a/tools/ptraccel-debug.c +++ b/tools/ptraccel-debug.c @@ -141,19 +141,31 @@ print_ptraccel_sequence(struct motion_filter *filter, } } +/* mm/s → units/µs */ +static inline double +mmps_to_upus(double mmps, int dpi) +{ + return mmps * (dpi/25.4) / 1e6; +} + static void -print_accel_func(struct motion_filter *filter, accel_profile_func_t profile) +print_accel_func(struct motion_filter *filter, + accel_profile_func_t profile, + int dpi) { - double vel; + double mmps; printf("# gnuplot:\n"); - printf("# set xlabel \"speed\"\n"); + printf("# set xlabel \"speed (mm/s)\"\n"); printf("# set ylabel \"raw accel factor\"\n"); printf("# set style data lines\n"); - printf("# plot \"gnuplot.data\" using 1:2\n"); - for (vel = 0.0; vel < 0.004; vel += 0.0000001) { - double result = profile(filter, NULL, vel, 0 /* time */); - printf("%.8f\t%.4f\n", vel, result); + printf("# plot \"gnuplot.data\" using 1:2 title 'accel factor'\n"); + printf("#\n"); + printf("# data: velocity(mm/s) factor velocity(units/us)\n"); + for (mmps = 0.0; mmps < 300.0; mmps += 1) { + double units_per_us = mmps_to_upus(mmps, dpi); + double result = profile(filter, NULL, units_per_us, 0 /* time */); + printf("%.8f\t%.4f\t%.8f\n", mmps, result, units_per_us); } } @@ -338,7 +350,7 @@ main(int argc, char **argv) } if (print_accel) - print_accel_func(filter, profile); + print_accel_func(filter, profile, dpi); else if (print_delta) print_ptraccel_deltas(filter, step); else if (print_motion) |