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Fix calibration/scaling for balance board

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Ryan Pavlik
2010-11-11 08:16:09 -06:00
parent 6e26b47003
commit 8b32094cbe
1 changed files with 5 additions and 2 deletions
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7
src/wiiboard.c
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@@ -124,10 +124,13 @@ void wii_board_disconnected(struct wii_board_t* wb) {
}
static float do_interpolate(uint16_t raw, uint16_t cal[3]) {
#define WIIBOARD_MIDDLE_CALIB 17.0f
if (raw < cal[1]) {
return ((raw-cal[0]) * 14.0f)/(float)(cal[1] - cal[0]);
return ((raw-cal[0]) * WIIBOARD_MIDDLE_CALIB)/(float)(cal[1] - cal[0]);
} else if (raw > cal[1]) {
return ((raw-cal[1]) * 14.0f)/(float)(cal[2] - cal[1]) + 14.0f;
return ((raw-cal[1]) * WIIBOARD_MIDDLE_CALIB)/(float)(cal[2] - cal[1]) + WIIBOARD_MIDDLE_CALIB;
} else {
return WIIBOARD_MIDDLE_CALIB;
}
}