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Touch: Fix small loss of precision calculating X/Y positions.

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This commit is contained in:
Jared Boone 2016-07-27 11:14:11 -07:00
parent f1a3201940
commit 9500da4b1b
1 changed files with 4 additions and 4 deletions
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8
firmware/application/touch.cpp
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@ -32,14 +32,14 @@ Metrics calculate_metrics(const Frame& frame) {
const auto x_max = frame.x.xp;
const auto x_min = frame.x.xn;
const auto x_range = x_max - x_min;
const auto x_position = (frame.x.yp + frame.x.yn) / 2;
const float x_norm = float(x_position - x_min) / x_range;
const float x_position = (frame.x.yp + frame.x.yn) * 0.5f;
const float x_norm = (x_position - x_min) / x_range;
const auto y_max = frame.y.yn;
const auto y_min = frame.y.yp;
const auto y_range = y_max - y_min;
const auto y_position = (frame.y.xp + frame.y.xn) / 2;
const float y_norm = float(y_position - y_min) / y_range;
const float y_position = (frame.y.xp + frame.y.xn) * 0.5f;
const float y_norm = (y_position - y_min) / y_range;
const auto z_max = frame.pressure.yp;
const auto z_min = frame.pressure.xn;