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Make fromEulerZYX accept Vector instead of x, y, z

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This commit is contained in:
Oleg Kalachev 2024-02-20 04:51:59 +03:00
parent 85182ac2b8
commit 5ec6b5e665
2 changed files with 11 additions and 12 deletions
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4
flix/control.ino
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@ -89,10 +89,10 @@ void interpretRC() {
} else if (mode == STAB) {
yawMode = controls[RC_CHANNEL_YAW] == 0 ? YAW : YAW_RATE;
attitudeTarget = Quaternion::fromEulerZYX(
attitudeTarget = Quaternion::fromEulerZYX(Vector(
controls[RC_CHANNEL_ROLL] * MAX_TILT,
-controls[RC_CHANNEL_PITCH] * MAX_TILT,
attitudeTarget.getYaw());
attitudeTarget.getYaw()));
ratesTarget.z = controls[RC_CHANNEL_YAW] * YAWRATE_MAX;
} else if (mode == MANUAL) {

19
flix/quaternion.h
View File

@ -30,13 +30,13 @@ public:
return Quaternion::fromAxisAngle(rates.x, rates.y, rates.z, rates.norm());
}
static Quaternion fromEulerZYX(float x, float y, float z) {
float cx = cos(x / 2);
float cy = cos(y / 2);
float cz = cos(z / 2);
float sx = sin(x / 2);
float sy = sin(y / 2);
float sz = sin(z / 2);
static Quaternion fromEulerZYX(const Vector& euler) {
float cx = cos(euler.x / 2);
float cy = cos(euler.y / 2);
float cz = cos(euler.z / 2);
float sx = sin(euler.x / 2);
float sy = sin(euler.y / 2);
float sz = sin(euler.z / 2);
return Quaternion(
cx * cy * cz + sx * sy * sz,
@ -99,9 +99,7 @@ public:
float sqy = y * y;
float sqz = z * z;
float sqw = w * w;
double sarg = -2 * (x * z - w * y) / (sqx + sqy + sqz + sqw);
if (sarg <= -0.99999) {
yaw = -2 * atan2(y, x);
} else if (sarg >= 0.99999) {
@ -115,7 +113,8 @@ public:
void setYaw(float yaw) {
// TODO: optimize?
Vector euler = toEulerZYX();
(*this) = Quaternion::fromEulerZYX(euler.x, euler.y, yaw);
euler.z = yaw;
(*this) = Quaternion::fromEulerZYX(euler);
}
Quaternion& operator *= (const Quaternion& q) {