rviz-viewer.py

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# NOTE: this example needs RViz to be installed
# usage: start ROS master (roscore) and then run this test
 
 
from pathlib import Path
 
import pinocchio as pin
from pinocchio.visualize import RVizVisualizer
 
# Load the URDF model.
# Conversion with str seems to be necessary when executing this file with ipython
pinocchio_model_dir = Path(__file__).parent.parent / "models"
 
model_path = pinocchio_model_dir / "example-robot-data/robots"
mesh_dir = pinocchio_model_dir
urdf_filename = "talos_reduced.urdf"
urdf_model_path = model_path / "talos_data/robots" / urdf_filename
 
model, collision_model, visual_model = pin.buildModelsFromUrdf(
    urdf_model_path, mesh_dir, pin.JointModelFreeFlyer()
)
viz = RVizVisualizer(model, collision_model, visual_model)
 
# Initialize the viewer.
viz.initViewer()
viz.loadViewerModel("pinocchio")
 
# Display a robot configuration.
q0 = pin.neutral(model)
viz.display(q0)
 
# Display another robot.
viz2 = RVizVisualizer(model, collision_model, visual_model)
viz2.initViewer(viz.viewer)
viz2.loadViewerModel(rootNodeName="pinocchio2")
q = q0.copy()
q[1] = 1.0
viz2.display(q)
 
input("Press enter to exit...")
 
viz.clean()