![](/media/cache/profiles/altb_JGUSAOG.jpg.50x50_q85.jpg)
corrections altb2
Diff: Lib_Misc/path_1d.cpp
- Revision:
- 0:d2e117716219
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Lib_Misc/path_1d.cpp Sun May 02 19:32:30 2021 +0000 @@ -0,0 +1,93 @@ +#include "path_1d.h" +using namespace std; + +path_1d::path_1d(void) +{ + this->finished = false; + this->started = false; + this->initialized = false; + +} + + +path_1d::~path_1d() {} + + +void path_1d::initialize(float a,float v, float s,float v_0,float v_end, float s_start){ + this->a_max = a; + this->v_max = v; + this->s_start = s_start; + this->sig = (float)(((s-s_start)>=0) -((s-s_start)<0)); + this->v_0 = abs(v_0); + this->dT=-this->v_0/this->a_max; + v_end = abs(v_end); + this->s_0 = abs(s-s_start); + this->s_end = this->s_0+.5f*v_end*v_end/this->a_max+.5f*this->v_0*this->v_0/this->a_max; + this->T_end=2*sqrt(this->s_end/this->a_max); + float VT= a * this->T_end/2.0f; + if(VT<=this->v_max) + { + this->T1=this->T_end/2.0f; + this->T2=this->T_end/2.0f; + } + else + { + float V_ = VT-this->v_max; + float TX = 2.0f*V_ / this->a_max; + float DS = .5f*V_ * TX; + float T_ = TX + DS / this->v_max; + this->T_end = this->T_end+DS / this->v_max; + this->T1=(this->T_end-T_)/2.0f; // beschleunige bis hier + this->T2=(this->T_end+T_)/2.0f; // bis hier konstant + this->X1=0.5f*this->a_max*this->T1*this->T1; + this->X2=this->X1 + this->v_max*(this->T2-this->T1); + this->X3=this->X2 + .5f*a_max*(this->T_end - this->T2)*(this->T_end-this->T2); + } + finished = false; + started = false; + initialized = true; +} +void path_1d::get_x_v(float t, float *x,float *v) +{ + t = t-t_offset-dT; + if(t <=T1) + { + *x = 0.5f*a_max*t*t; + *v = a_max * t; + } +else if(t<=T2) + { + *x = X1+v_max*(t-T1); + *v = v_max; + } +else if(t<=T_end) + { + *x = X3-.5*a_max*(t-T_end)*(t-T_end); + *v = -a_max*(t-T_end); + } +else + { + *x = s_end; + *v = 0; + } +if(t>=T_end) + { + finished = true; + started = false; + } +*x -= .5*v_0*v_0/a_max; +if((*x) >= s_0) + { + finished = true; + started = false; + } +*x *= sig; +*x += s_start; +*v *= sig; +} +void path_1d::start(float t) +{ + t_offset = t; + finished = false; + started = true; + } \ No newline at end of file