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SITL: tidy up frame handling a bit

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This commit is contained in:
Andrew Tridgell 2015-08-13 18:44:35 +10:00 committed by Randy Mackay
parent 3ea31099d7
commit e50aab180b
2 changed files with 25 additions and 3 deletions
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23
libraries/SITL/SIM_Helicopter.cpp
View File

@ -40,6 +40,14 @@ Helicopter::Helicopter(const char *home_str, const char *frame_str) :
tail_thrust_scale = sinf(radians(hover_lean)) * thrust_scale / yaw_zero;
frame_height = 0.1;
if (strstr(frame_str, "-dual")) {
frame_type = HELI_FRAME_DUAL;
} else if (strstr(frame_str, "-compound")) {
frame_type = HELI_FRAME_COMPOUND;
} else {
frame_type = HELI_FRAME_CONVENTIONAL;
}
}
/*
@ -65,7 +73,8 @@ void Helicopter::update(const struct sitl_input &input)
float swash2 = (input.servos[1]-1000) / 1000.0f;
float swash3 = (input.servos[2]-1000) / 1000.0f;
if (strcmp(frame, "heli") == 0) {
switch (frame_type) {
case HELI_FRAME_CONVENTIONAL: {
// simulate a traditional helicopter
float tail_rotor = (input.servos[3]-1000) / 1000.0f;
@ -78,7 +87,10 @@ void Helicopter::update(const struct sitl_input &input)
yaw_rate = tail_rotor - 0.5f;
lateral_y_thrust = yaw_rate * rsc_scale * tail_thrust_scale;
} else if (strcmp(frame, "heli-dual") == 0) {
break;
}
case HELI_FRAME_DUAL: {
// simulate a tandem helicopter
float swash4 = (input.servos[3]-1000) / 1000.0f;
@ -91,7 +103,10 @@ void Helicopter::update(const struct sitl_input &input)
roll_rate = (swash1-swash2) + (swash4-swash5);
pitch_rate = (swash1+swash2+swash3) - (swash4+swash5+swash6);
yaw_rate = (swash1-swash2) + (swash5-swash4);
} else if (strcmp(frame, "heli-compound") == 0) {
break;
}
case HELI_FRAME_COMPOUND: {
// simulate a compound helicopter
float right_rotor = (input.servos[3]-1000) / 1000.0f;
@ -105,6 +120,8 @@ void Helicopter::update(const struct sitl_input &input)
yaw_rate = right_rotor - left_rotor;
lateral_x_thrust = (left_rotor+right_rotor-1) * rsc_scale * tail_thrust_scale;
break;
}
}
roll_rate *= rsc_scale;

5
libraries/SITL/SIM_Helicopter.h
View File

@ -51,6 +51,11 @@ private:
float rsc_setpoint = 0.8f;
float thrust_scale;
float tail_thrust_scale;
enum frame_types {
HELI_FRAME_CONVENTIONAL,
HELI_FRAME_DUAL,
HELI_FRAME_COMPOUND
} frame_type = HELI_FRAME_CONVENTIONAL;
};