test
Dependencies: mbed ros_lib_kinetic nhk19mr2_can_info splitData SerialHalfDuplex_HM
Walk/Walk.cpp
- Committer:
- shimizuta
- Date:
- 2019-03-01
- Revision:
- 34:89d701e15cdf
- Parent:
- 32:dc684a0b8448
- Child:
- 35:b4e1b8f25cd7
File content as of revision 34:89d701e15cdf:
#define _USE_MATH_DEFINES #include "math.h" #include <stdio.h> #include "stdlib.h" #include "Walk.h" #include "pi.h" //Orbitは足毎の軌道をあらわす。 const float kGravity = 9.8; Orbit::Orbit(OrbitPattern pattern) { pattern_ = pattern; } float Orbit::GetOneWalkTime() { float time_s; switch (pattern_) { case FREELINES: time_s = FreeLineOrbit::GetOneWalkTime(); break; default: time_s = TriangleOrbit::GetOneWalkTime(); break; } return time_s; } int Orbit::GetOrbit(OneLeg &leg, float phasetime_s) { int ret; switch (pattern_) { case FREELINES: ret = FreeLineOrbit::GetOrbit(leg, phasetime_s); break; default: ret = TriangleOrbit::GetOrbit(leg, phasetime_s); break; } return ret; } Walk::Walk() { for (int i = 0; i < 4; i++) offset_multi_[i] = 0; } float Walk::calctime_s_; int Walk::Cal4LegsPosi(OneLeg leg[4]) //失敗したら1を返す。成功なら0 { int is_out = 0; for (int i = 0; i < 4; i++) { float one_walk_time = orbit_[i].GetOneWalkTime(); phasetime_s_[i] += calctime_s_; while (phasetime_s_[i] > one_walk_time) phasetime_s_[i] -= one_walk_time; if (orbit_[i].GetOrbit(leg[i], phasetime_s_[i]) == 1) { printf("error:leg %d in Cal4LegsPosi\r\n", i); is_out = 1; } } return is_out; } float Walk::GetOneWalkTime() { return orbit_[0].GetOneWalkTime(); //4足全て同じ時間のはずなので一例としてorbit_[0]のものを返している. }; void Walk::SetOffsetTime(float offset_multi0, float offset_multi1, float offset_multi2, float offset_multi3) { offset_multi_[0] = offset_multi0; offset_multi_[1] = offset_multi1; offset_multi_[2] = offset_multi2; offset_multi_[3] = offset_multi3; } //軌道がリンク定義外になっていないかチェック。reutn 0:ok 1:out int Walk::CheckOrbit(OneLeg templateleg) { for (int i = 0; i < 4; i++) { //軌道が値域の外に出ないか計算で確かめる float one_walk_time = GetOneWalkTime(); float step = calctime_s_ * 0.1; for (float j = 0; j < one_walk_time; j += step) { if (orbit_[i].GetOrbit(templateleg, j) == 1) { printf("error:leg %d, time %f", i, j); return 1; //解が出ないときは1を返す } } phasetime_s_[i] = one_walk_time * offset_multi_[i]; } return 0; } void Walk::SetOneOrbit(int legnum, Orbit orbit) { orbit_[legnum] = orbit; } void Walk::SetAllOrbit(Orbit orbit) { for (int i = 0; i < 4; i++) SetOneOrbit(i, orbit); } void Walk::SetOneLegStandParam(int legnum, float x_m, float y_m, float time_s) { Orbit triangle(TRIANGLE); triangle.SetTriangleParam(x_m, y_m, 0, 0, 0, time_s, 0, 0); SetOneOrbit(legnum, triangle); } void Walk::SetAllLegStandParam(float x_m, float y_m, float time_s) { for (int i = 0; i < 4; i++) SetOneLegStandParam(i, x_m, y_m, time_s); } void Walk::SetOneLegTriangleParam(int legnum, float offset_x_m, float offset_y_m, float stride_m, float height_m, float buffer_height_m, float stridetime_s, float toptime_s, float buffer_time_s) { Orbit triangle(TRIANGLE); triangle.SetTriangleParam(offset_x_m, offset_y_m, stride_m, height_m, buffer_height_m, stridetime_s, toptime_s, buffer_time_s); SetOneOrbit(legnum, triangle); } void Walk::SetAllLegTriangleParam(float offset_x_m, float offset_y_m, float stride_m, float height_m, float buffer_height_m, float stridetime_s, float toptime_s, float buffer_time_s) { for (int i = 0; i < 4; i++) SetOneLegTriangleParam(i, offset_x_m, offset_y_m, stride_m, height_m, buffer_height_m, stridetime_s, toptime_s, buffer_time_s); } void Walk::SetOneLegFreeLinesParam(int legnum, LineParam lineparams[], int point_num) { Orbit freeline(FREELINES); freeline.SetFreeLinesParam(lineparams, point_num); SetOneOrbit(legnum, freeline); } void Walk::SetAllLegFreeLinesParam(LineParam lineparams[], int point_num) { for (int i = 0; i < 4; i++) SetOneLegFreeLinesParam(i, lineparams, point_num); } void Walk::ChangeOneParam(int legnum, TriangleParams param, float val) { orbit_[legnum].ChangeOneParam(param, val); } void TriangleOrbit::SetTriangleParam(float offset_x_m, float offset_y_m, float stride_m, float height_m, float buffer_height_m, float stridetime_s, float toptime_s, float buffer_time_s) { reverse_tanbeta_ = 1.0 / tan(81.0 / 180.0 * M_PI); //論文よりこれが最適らしい offset_x_m_ = offset_x_m; offset_y_m_ = offset_y_m; stride_m_ = stride_m; height_m_ = height_m; //足上げ幅 buffer_height_m_ = buffer_height_m; //着地直前で止める高さ stridetime_s_ = stridetime_s; toptime_s_ = toptime_s; //頂点に行くまでの時間 buffer_time_s_ = buffer_time_s; //頂点から一時停止点までの時間. //事前に計算しておく CalOtherParam(); } void TriangleOrbit::CalOtherParam() { top_x_m_ = offset_x_m_ + stride_m_ * 0.5 - height_m_ * reverse_tanbeta_; top_y_m_ = -height_m_ + offset_y_m_; buffer_x_m_ = offset_x_m_ + stride_m_ * 0.5 - buffer_height_m_ * reverse_tanbeta_; buffer_y_m_ = -buffer_height_m_ + offset_y_m_; } //足一周の時間 float TriangleOrbit::GetOneWalkTime() { return stridetime_s_ + toptime_s_ + buffer_time_s_; }; int TriangleOrbit::GetOrbit(OneLeg &leg, float phasetime_s) { int ret = 0; if (phasetime_s < stridetime_s_) ret = StrideLineAccel_(leg, phasetime_s); else if (phasetime_s < stridetime_s_ + toptime_s_) ret = leg.SetXY_m(top_x_m_, top_y_m_); else ret = leg.SetXY_m(buffer_x_m_, buffer_y_m_); return ret; }; int TriangleOrbit::StrideLine_(OneLeg &leg, float phasetime_s) { float x_m = -stride_m_ * phasetime_s / stridetime_s_ + stride_m_ * 0.5 + offset_x_m_; float y_m = offset_y_m_; return leg.SetXY_m(x_m, y_m); } int TriangleOrbit::StrideLineAccel_(OneLeg &leg, float phasetime_s) { ///////////x,yを計算 float s0 = stride_m_ * 0.5 + offset_x_m_; float s1 = offset_x_m_ - stride_m_ * 0.5; float g_h = sqrtf(kGravity / offset_y_m_); float t = phasetime_s / stridetime_s_; float denominator = expf(g_h) - expf(-g_h); //分母 float x_m = -(s0 * expf(-g_h) - s1) * expf(g_h * t) / denominator + (s0 * expf(g_h) - s1) * expf(-g_h * t) / denominator; float y_m = offset_y_m_; //x,yを代入 return leg.SetXY_m(x_m, y_m); } void TriangleOrbit::ChangeOneParam(TriangleParams param, float val) { switch (param) { case OFFSET_X_M: offset_x_m_ = val; break; case OFFSET_Y_M: offset_y_m_ = val; break; case STRIDE_M: stride_m_ = val; break; case HEIGHT_M: height_m_ = val; break; case BUFFER_HEIGHT_M: buffer_height_m_ = val; break; } CalOtherParam(); } void FreeLineOrbit::SetFreeLinesParam(LineParam lineparams[], int point_num) { point_num_ = point_num; for (int i = 0; i < point_num_; i++) lineparams_[i] = lineparams[i]; } int FreeLineOrbit::GetOrbit(OneLeg &leg, float phasetime_s) { ; //現在の最終到達pointを決定 int next_point; for (next_point = 0; next_point < point_num_ - 1; next_point++) // point_num - 1が配列の最大index.これを超えないようにしている { if (phasetime_s < lineparams_[next_point].time_s) break; } //x,yを計算 float x_m, y_m; float d_phase = phasetime_s - lineparams_[next_point - 1].time_s; float d_time = lineparams_[next_point].time_s - lineparams_[next_point - 1].time_s; float phase_rate = d_phase / d_time; x_m = lineparams_[next_point - 1].x_m + (lineparams_[next_point].x_m - lineparams_[next_point - 1].x_m) * phase_rate; y_m = lineparams_[next_point - 1].y_m + (lineparams_[next_point].y_m - lineparams_[next_point - 1].y_m) * phase_rate; return leg.SetXY_m(x_m, y_m); } float FreeLineOrbit::GetOneWalkTime() //足一周の時間 { return lineparams_[point_num_ - 1].time_s; } void FreeLineOrbit::SetStandParam(float x_m, float y_m, float time_s) { point_num_ = 2; lineparams_[0].x_m = x_m; lineparams_[0].y_m = y_m; lineparams_[0].time_s = 0; lineparams_[1].x_m = x_m; lineparams_[1].y_m = y_m; lineparams_[1].time_s = time_s; } OverCome::OverCome(float start_x_m[4], float start_y_m[4], float d_x_m, float goal_y_m[4], float height_m[4], float gravity_dist[4]) { for (int i = 0; i < 4; i++) { start_x_m_[i] = start_x_m[i]; //足のスタートx start_y_m_[i] = start_y_m[i]; //足のスタートy goal_y_m_[i] = goal_y_m[i]; //目標地点までのy gravity_dist_[i] = gravity_dist[i]; height_m_[i] = height_m[i]; } d_x_m_ = d_x_m; //目標地点までのx d_time_ = 0.5; //各動きの時間 d_time_slow_ = 0.5; next_point_ = 0; //次のparamのindex GetLine(); for (int i = 0; i < 4; i++) walk.SetOneLegFreeLinesParam(i, legs_[i], next_point_); } void OverCome::Rise(int legnum) { for (int i = 0; i < 4; i++) { legs_[i][next_point_].time_s = legs_[i][next_point_ - 1].time_s + d_time_; legs_[i][next_point_].x_m = legs_[i][next_point_ - 1].x_m; legs_[i][next_point_].y_m = legs_[i][next_point_ - 1].y_m; } legs_[legnum][next_point_].y_m -= height_m_[legnum]; next_point_++; } void OverCome::Forward(int legnum) { for (int i = 0; i < 4; i++) { legs_[i][next_point_].time_s = legs_[i][next_point_ - 1].time_s + d_time_; legs_[i][next_point_].x_m = legs_[i][next_point_ - 1].x_m; legs_[i][next_point_].y_m = legs_[i][next_point_ - 1].y_m; } legs_[legnum][next_point_].x_m += d_x_m_; next_point_++; } void OverCome::Land(int legnum) { for (int i = 0; i < 4; i++) { legs_[i][next_point_].time_s = legs_[i][next_point_ - 1].time_s + d_time_slow_; legs_[i][next_point_].x_m = legs_[i][next_point_ - 1].x_m; legs_[i][next_point_].y_m = legs_[i][next_point_ - 1].y_m; } legs_[legnum][next_point_].y_m = goal_y_m_[legnum]; //着地 next_point_++; } void OverCome::Step(int legnum) { Rise(legnum); Forward(legnum); Land(legnum); } //重心移動、param direct:動く正負。+-1を入れる void OverCome::GravityMove(int legnum) { for (int i = 0; i < 4; i++) { legs_[i][next_point_].time_s = legs_[i][next_point_ - 1].time_s + d_time_; legs_[i][next_point_].x_m = legs_[i][next_point_ - 1].x_m - gravity_dist_[legnum]; legs_[i][next_point_].y_m = legs_[i][next_point_ - 1].y_m; } ++next_point_; } void OverCome::StartPoint() { for (int i = 0; i < 4; i++) { legs_[i][next_point_].time_s = 0; legs_[i][next_point_].x_m = start_x_m_[i]; legs_[i][next_point_].y_m = start_y_m_[i]; } ++next_point_; } void OverCome::GoalPoint() { for (int i = 0; i < 4; i++) { legs_[i][next_point_].time_s = legs_[i][next_point_ - 1].time_s + d_time_; legs_[i][next_point_].x_m = start_x_m_[i]; legs_[i][next_point_].y_m = goal_y_m_[i]; } ++next_point_; } void OverCome::GetLine() { StartPoint(); //スタート時点 GravityMove(RIGHT_F); Step(RIGHT_F); GravityMove(LEFT_B); Step(LEFT_B); GravityMove(LEFT_F); Step(LEFT_F); GravityMove(RIGHT_B); Step(RIGHT_B); GoalPoint(); /* GravityMove(1); Step(RIGHT_B); GravityMove(-1); Step(RIGHT_F); GravityMove(1); Step(LEFT_B); GravityMove(-1); Step(LEFT_F); GravityMove(1); */ }