static void
print_ptraccel_sequence(struct motion_filter *filter,
int nevents,
double *deltas)
{
struct normalized_coords motion;
uint64_t time = 0;
double *dx;
int i;
printf("# gnuplot:\n");
printf("# set xlabel \"event number\"\n");
printf("# set ylabel \"delta motion\"\n");
printf("# set style data lines\n");
printf("# plot \"gnuplot.data\" using 1:2 title \"dx out\", \\\n");
printf("# \"gnuplot.data\" using 1:3 title \"dx in\"\n");
printf("#\n");
dx = deltas;
for (i = 0; i < nevents; i++, dx++) {
motion.x = *dx;
motion.y = 0;
time += 12; /* pretend 80Hz data */
motion = filter_dispatch(filter, &motion, NULL, time);
printf("%d %.3f %.3f\n", i, motion.x, *dx);
}
}
static void
print_ptraccel_deltas(struct motion_filter *filter, double step)
{
struct normalized_coords motion;
uint64_t time = 0;
double i;
printf("# gnuplot:\n");
printf("# set xlabel dx unaccelerated\n");
printf("# set ylabel dx accelerated\n");
printf("# set style data lines\n");
printf("# plot \"gnuplot.data\" using 1:2 title \"step %.2f\"\n", step);
printf("#\n");
/* Accel flattens out after 15 and becomes linear */
for (i = 0.0; i < 15.0; i += step) {
motion.x = i;
motion.y = 0;
time += 12; /* pretend 80Hz data */
motion = filter_dispatch(filter, &motion, NULL, time);
printf("%.2f %.3f\n", i, motion.x);
}
}
int process(const tendrils& inputs, const tendrils& outputs)
{
xyz_cloud_variant_t input = input_->make_variant();
feature_cloud_variant_t normals = normals_->make_variant();
boost::apply_visitor(filter_dispatch(impl_, inputs, outputs), input, normals);
return 0;
}
static void
filter_motion(struct touchpad_dispatch *touchpad,
double *dx, double *dy, uint32_t time)
{
struct motion_params motion;
motion.dx = *dx;
motion.dy = *dy;
filter_dispatch(touchpad->filter, &motion, touchpad, time);
*dx = motion.dx;
*dy = motion.dy;
}
static void
print_ptraccel_movement(struct motion_filter *filter,
int nevents,
double max_dx,
double step)
{
struct normalized_coords motion;
uint64_t time = 0;
double dx;
int i;
printf("# gnuplot:\n");
printf("# set xlabel \"event number\"\n");
printf("# set ylabel \"delta motion\"\n");
printf("# set style data lines\n");
printf("# plot \"gnuplot.data\" using 1:2 title \"dx out\", \\\n");
printf("# \"gnuplot.data\" using 1:3 title \"dx in\"\n");
printf("#\n");
if (nevents == 0) {
if (step > 1.0)
nevents = max_dx;
else
nevents = 1.0 * max_dx/step + 0.5;
/* Print more events than needed so we see the curve
* flattening out */
nevents *= 1.5;
}
dx = 0;
for (i = 0; i < nevents; i++) {
motion.x = dx;
motion.y = 0;
time += 12; /* pretend 80Hz data */
motion = filter_dispatch(filter, &motion, NULL, time);
printf("%d %.3f %.3f\n", i, motion.x, dx);
if (dx < max_dx)
dx += step;
}
}