Files
hexapod-robot/2026-current/robot/BodyPose.cpp
T
mangavalkandClaude Opus 5.5 ad77b06c36 Initial import: robot firmware + PlatformIO two-env scaffold
Robot-side firmware (Teensy 4.0) imported unchanged as extracted.
platformio.ini defines [env:robot] (teensy40) and [env:remote]
(teensy41); scripts/select_src_dir.py points each env at its own
sketch folder so robot/ and remote/ stay Arduino-style sketches.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-28 15:36:37 +02:00

51 lines
1.7 KiB
C++

#include "BodyPose.h"
void BodyPose::begin() {
s_roll_.reset(0); s_pitch_.reset(0); s_yaw_.reset(0);
s_x_.reset(0); s_y_.reset(0); s_z_.reset(0);
}
void BodyPose::update(float dt) {
s_roll_.setTarget(command_.roll_deg);
s_pitch_.setTarget(command_.pitch_deg);
s_yaw_.setTarget(command_.yaw_deg);
s_x_.setTarget(command_.x_mm);
s_y_.setTarget(command_.y_mm);
s_z_.setTarget(command_.z_mm);
s_roll_.update(dt); s_pitch_.update(dt); s_yaw_.update(dt);
s_x_.update(dt); s_y_.update(dt); s_z_.update(dt);
}
// Combines the commanded (smoothed) tilt with the robot's own stabilization
// correction, then applies both to a body-frame foot target so the feet stay
// planted while the body tilts/shifts on top of them.
//
// Sign convention here (whether positive roll tips the body left or right,
// whether offsetting +X moves the feet the way you expect) depends on your
// leg numbering and mount angles - bench-check it the same way as the IK
// elbow direction, and flip signs if it goes the wrong way.
FootTarget BodyPose::apply(const FootTarget& in) const {
float roll = radians(s_roll_.current + correction_roll_);
float pitch = radians(s_pitch_.current + correction_pitch_);
float yaw = radians(s_yaw_.current);
float x = in.x, y = in.y, z = in.z;
// yaw (about Z)
float x1 = x * cos(yaw) - y * sin(yaw);
float y1 = x * sin(yaw) + y * cos(yaw);
// pitch (about Y)
float x2 = x1 * cos(pitch) + z * sin(pitch);
float z2 = -x1 * sin(pitch) + z * cos(pitch);
// roll (about X)
float y3 = y1 * cos(roll) - z2 * sin(roll);
float z3 = y1 * sin(roll) + z2 * cos(roll);
FootTarget out;
out.x = x2 - s_x_.current;
out.y = y3 - s_y_.current;
out.z = z3 - s_z_.current;
return out;
}