ecl_mobile_robot Documentation

ecl_mobile_robot

Contains transforms (e.g. differential drive inverse kinematics) for the various types of mobile robot platforms.

packageSummary

Various representations and transforms relevant to mobile robot platforms.

CompilingLinking

Include the following at the top of any translation unit which requires this library:

        #include <ecl/mobile_robot.hpp>

        // The error interfaces
        using ecl::Pose;
        using ecl::DifferentialDrive;

You will also need to link to -lecl_mobile_robot.

usage

Pose

This is the classical definition for a mobile robot's state in a 2D world - [ x, y, heading ].

This class provides a convenient c++ container style interface as well as a few mathematical operators for calculating relative poses (differentials).

                Pose pose1, pose2;
                pose1 << 0,0,Math::pi/2; // comma initialisation
                std::cout << pose.x() << pose.y() << pose.heading(); // readable access
                std::cout << pose[0] << pose[1] << pose[1];          // vector style access
                Pose pose3 = pose1 + pose2; // pose + relative pose
                pose1 += pose2;             // pose1 + relative pose
                pose3 = pose1 - pose2;      // calculates pose2 rel pose1

DifferentialDrive

Currently there is only the diff drive kinematics class. This provides functions for forward and inverse kinematics on a differential drive type robot.

                DifferentialDrive::Kinematics kinematics(0.1,0.5,0.05); // fixed axis length, centre offset, wheel radius
                Pose dpose = kinematics.forward(0.2, 0.1); // left and right wheel angle updates -> differential pose
                Vector2d wheel_vels = kinematics.inverse(0.1, 0.05); // linear/angular velocites -> left/right wheel angular rates
                Vector2d vels = Kinematics::Inverse(pose1,pose2); // orig and final pose -> linear/angular platform velocities

unitTests

ChangeLog



ecl_mobile_robot
Author(s): Daniel Stonier
autogenerated on Thu Nov 10 2016 04:03:48