romeo_conf.py

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# -*- coding: utf-8 -*-
"""
Created on Thu Apr 18 09:47:07 2019

@author: student
"""

import os

import numpy as np
import pinocchio as pin

np.set_printoptions(precision=3, linewidth=200, suppress=True)
LINE_WIDTH = 60

N_SIMULATION = 4000  # number of time steps simulated
dt = 0.002  # controller time step
nv = 37

lxp = 0.10  # foot length in positive x direction
lxn = 0.05  # foot length in negative x direction
lyp = 0.05  # foot length in positive y direction
lyn = 0.05  # foot length in negative y direction
lz = 0.07  # foot sole height with respect to ankle joint
mu = 0.3  # friction coefficient
fMin = 5.0  # minimum normal force
fMax = 1000.0  # maximum normal force
rf_frame_name = "RAnkleRoll"  # right foot frame name
lf_frame_name = "LAnkleRoll"  # left foot frame name
contactNormal = np.array(
    [0.0, 0.0, 1.0]
)  # direction of the normal to the contact surface

w_com = 1.0  # weight of center of mass task
w_cop = 0.0  # weight of center of pressure task
w_am = 0.0  # weight of angular momentum task
w_foot = 1e-1  # weight of the foot motion task
w_contact = -1.0  # weight of foot in contact (negative means infinite weight)
w_posture = 1e-4  # weight of joint posture task
w_forceRef = 1e-5  # weight of force regularization task
w_torque_bounds = 1.0  # weight of the torque bounds
w_joint_bounds = 0.0

tau_max_scaling = 1.45  # scaling factor of torque bounds
v_max_scaling = 0.8

kp_contact = 10.0  # proportional gain of contact constraint
kp_foot = 10.0  # proportional gain of contact constraint
kp_com = 10.0  # proportional gain of center of mass task
kp_am = 10.0  # proportional gain of angular momentum task
kp_posture = 1.0  # proportional gain of joint posture task
gain_vector = kp_posture * np.ones(nv - 6)
masks_posture = np.ones(nv - 6)

viewer = pin.visualize.GepettoVisualizer
PRINT_N = 500  # print every PRINT_N time steps
DISPLAY_N = 20  # update robot configuration in viwewer every DISPLAY_N time steps
CAMERA_TRANSFORM = [
    4.0,
    -0.2,
    0.4,
    0.5243823528289795,
    0.518651008605957,
    0.4620114266872406,
    0.4925136864185333,
]

SPHERE_RADIUS = 0.03
REF_SPHERE_RADIUS = 0.03
COM_SPHERE_COLOR = (1, 0.5, 0, 0.5)
COM_REF_SPHERE_COLOR = (1, 0, 0, 0.5)
RF_SPHERE_COLOR = (0, 1, 0, 0.5)
RF_REF_SPHERE_COLOR = (0, 1, 0.5, 0.5)
LF_SPHERE_COLOR = (0, 0, 1, 0.5)
LF_REF_SPHERE_COLOR = (0.5, 0, 1, 0.5)

filename = str(os.path.dirname(os.path.abspath(__file__)))
path = filename + "/../models/romeo"
urdf = path + "/urdf/romeo.urdf"
srdf = path + "/srdf/romeo_collision.srdf"