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// Copyright (c) 2016 CNRS |
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// Authors: Joseph Mirabel from Florent Lamiraux |
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// Redistribution and use in source and binary forms, with or without |
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// modification, are permitted provided that the following conditions are |
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// met: |
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// |
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// 1. Redistributions of source code must retain the above copyright |
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// notice, this list of conditions and the following disclaimer. |
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// |
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// 2. Redistributions in binary form must reproduce the above copyright |
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// notice, this list of conditions and the following disclaimer in the |
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// documentation and/or other materials provided with the distribution. |
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// |
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
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// DAMAGE. |
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#ifndef HPP_PINOCCHIO_GRIPPER_HH |
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#define HPP_PINOCCHIO_GRIPPER_HH |
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#include <hpp/pinocchio/config.hh> |
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#include <hpp/pinocchio/fwd.hh> |
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namespace hpp { |
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namespace pinocchio { |
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/// Definition of a robot gripper |
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/// |
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/// This class represent a robot gripper as a frame attached to the joint |
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/// of the robot that holds the gripper. |
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/// |
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/// \image html figures/figure-gripper.png |
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/// |
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/// To graps a box-shaped object with small lengths along x and y, the |
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/// gripper frame should coincide with the object frame. |
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class HPP_PINOCCHIO_DLLAPI Gripper { |
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public: |
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/// Return a shared pointer to new instance |
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/// \param name of the gripper in the device, |
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/// \param device |
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static GripperPtr_t create(const std::string& name, |
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const DeviceWkPtr_t& device) { |
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Gripper* ptr = new Gripper(name, device); |
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GripperPtr_t shPtr(ptr); |
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ptr->init(shPtr); |
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return shPtr; |
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} |
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static GripperPtr_t createCopy(const GripperPtr_t& gripper, |
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const DeviceWkPtr_t& otherDevice) { |
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Gripper* ptr = new Gripper(gripper->name(), otherDevice); |
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ptr->clearance(gripper->clearance()); |
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GripperPtr_t shPtr(ptr); |
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ptr->init(shPtr); |
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return shPtr; |
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} |
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/// Get joint to which the gripper is attached |
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const JointPtr_t& joint() const { return joint_; } |
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/// Get the frame Id of the gripper in the vector of frame of the Model |
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const FrameIndex& frameId() const { return fid_; } |
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/// Get handle position in the the Grippering joint |
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const Transform3s& objectPositionInJoint() const; |
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/// get name |
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const std::string& name() const { return name_; } |
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/// Get the clearance |
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/// |
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/// The clearance is a distance, from the center of the gripper and along |
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/// the x-aixs, that "ensures" an object being at that distance is not |
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/// colliding with this gripper. |
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/// It also gives an order of magnitude of the size of the gripper. |
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value_type clearance() const { return clearance_; } |
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/// Set the clearance |
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/// \sa clearance() |
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void clearance(const value_type& clearance) { clearance_ = clearance; } |
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GripperPtr_t clone() const; |
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std::ostream& print(std::ostream& os) const; |
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protected: |
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/// Constructor |
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/// \param name of the gripper in the device, |
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/// \param device |
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/// \todo device should be of type DeviceConstPtr_t but the constructor of |
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/// JointPtr_t needs a DevicePtr_t. |
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Gripper(const std::string& name, const DeviceWkPtr_t& device); |
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void init(GripperWkPtr_t weakPtr) { weakPtr_ = weakPtr; } |
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private: |
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inline DevicePtr_t device() const; |
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std::string name_; |
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DeviceWkPtr_t device_; |
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/// Joint of the robot that holds handles. |
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JointPtr_t joint_; |
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mutable FrameIndex fid_; |
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/// Clearance |
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value_type clearance_; |
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/// Weak pointer to itself |
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GripperWkPtr_t weakPtr_; |
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}; // class Gripper |
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inline std::ostream& operator<<(std::ostream& os, const Gripper& gripper) { |
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return gripper.print(os); |
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} |
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} // namespace pinocchio |
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} // namespace hpp |
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#endif // HPP_PINOCCHIO_GRIPPER_HH |
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