#!/usr/bin/env python
from gazebo_msgs.msg import ODEPhysics
from geometry_msgs.msg import Vector3
from gazebo_msgs.srv import SetPhysicsProperties
from std_msgs.msg import Float64
import rospy
set_gravity = rospy.ServiceProxy('/gazebo/set_physics_properties',
SetPhysicsProperties)
time_step = Float64(0.004) # default: 0.001
max_update_rate = Float64(250.0) # default: 1000.0
gravity = Vector3()
gravity.x = 0.0
gravity.y = 0.0
gravity.z = -9.8
ode_config = ODEPhysics()
ode_config.auto_disable_bodies = False
ode_config.sor_pgs_precon_iters = 0
ode_config.sor_pgs_iters = 50
ode_config.sor_pgs_w = 1.3
ode_config.sor_pgs_rms_error_tol = 0.0
ode_config.contact_surface_layer = 0.001
ode_config.contact_max_correcting_vel = 50.0 # default: 100.0
ode_config.cfm = 0.0
ode_config.erp = 0.2
ode_config.max_contacts = 20
print "Changing gazebo properties."
set_gravity(time_step.data, max_update_rate.data, gravity, ode_config)
rospy.loginfo("Setting physics properties...")
srv = rospy.ServiceProxy("/gazebo/set_physics_properties", SetPhysicsProperties)
time_step = 0.001
max_update_rate = 1000.0
gravity = Vector3()
gravity.x = 0
gravity.y = 0
gravity.z = 9.8
ode_config = ODEPhysics()
ode_config.auto_disable_bodies = False
ode_config.sor_pgs_precon_iters = 0
ode_config.sor_pgs_w = 1.3
ode_config.sor_pgs_rms_error_tol = 0.0
ode_config.contact_surface_layer = 0.001
ode_config.contact_max_correcting_vel = 100.0
ode_config.cfm = 0.0
ode_config.erp = 0.2
ode_config.max_contacts = 20
srv(time_step, max_update_rate, gravity, ode_config)
all_points = []
# spin and write out a file
for i in range(0,frames_to_capture):
if rospy.is_shutdown():
break
from simulation_handler import SimulationHandler
GAZEBO_SERVICES_MAP = {
'reset': ['/gazebo/reset_world', Empty],
'pause': ['/gazebo/pause_physics', Empty],
'unpause': ['/gazebo/unpause_physics', Empty],
'set_physics': ['/gazebo/set_physics_properties', SetPhysicsProperties]
}
ODE_PHYSICS_DEFAULT = ODEPhysics()
ODE_PHYSICS_DEFAULT.auto_disable_bodies = False
ODE_PHYSICS_DEFAULT.sor_pgs_precon_iters = 0
ODE_PHYSICS_DEFAULT.sor_pgs_iters = 50
ODE_PHYSICS_DEFAULT.sor_pgs_w = 1.3
ODE_PHYSICS_DEFAULT.sor_pgs_rms_error_tol = 0.0
ODE_PHYSICS_DEFAULT.contact_surface_layer = 0.001
ODE_PHYSICS_DEFAULT.contact_max_correcting_vel = 0.0
ODE_PHYSICS_DEFAULT.cfm = 0.0
ODE_PHYSICS_DEFAULT.erp = 0.2
ODE_PHYSICS_DEFAULT.max_contacts = 20
class GazeboHandler(SimulationHandler):
"""
The simulation handler for performing pause, unpause, spawn, etc operations
in gazebo.
"""
def __init__(self, update_physics_params_at_start=False):
super(GazeboHandler, self).__init__()
self.update_physics_params_at_start = update_physics_params_at_start
self.services = {}