DART  6.7.3
Chain.hpp
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2011-2019, The DART development contributors
3  * All rights reserved.
4  *
5  * The list of contributors can be found at:
6  * https://github.com/dartsim/dart/blob/master/LICENSE
7  *
8  * This file is provided under the following "BSD-style" License:
9  * Redistribution and use in source and binary forms, with or
10  * without modification, are permitted provided that the following
11  * conditions are met:
12  * * Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  * * Redistributions in binary form must reproduce the above
15  * copyright notice, this list of conditions and the following
16  * disclaimer in the documentation and/or other materials provided
17  * with the distribution.
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
19  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
20  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
21  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
26  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
27  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
29  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30  * POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #ifndef DART_DYNAMICS_CHAIN_HPP_
34 #define DART_DYNAMICS_CHAIN_HPP_
35 
37 
38 namespace dart {
39 namespace dynamics {
40 
46 class Chain : public Linkage
47 {
48 public:
49 
50  struct Criteria
51  {
53  Criteria(BodyNode* _start, BodyNode* _target, bool _includeBoth = false);
54 
56  std::vector<BodyNode*> satisfy() const;
57 
60 
64 
69 
71  Linkage::Criteria convert() const;
72 
74  operator Linkage::Criteria() const;
75 
77  static Criteria convert(const Linkage::Criteria& criteria);
78  };
79 
84 
86  static ChainPtr create(const Chain::Criteria& _criteria,
87  const std::string& _name = "Chain");
88 
91  static ChainPtr create(BodyNode* _start, BodyNode* _target,
92  const std::string& _name = "Chain");
93 
96  static ChainPtr create(BodyNode* _start, BodyNode* _target,
97  IncludeBothTag, const std::string& _name = "Chain");
98 
100  ChainPtr cloneChain() const;
101 
103  ChainPtr cloneChain(const std::string& cloneName) const;
104 
105  // To expose MetaSkeleton::cloneMetaSkeleton(), which takes no cloneName.
107 
108  // Documentation inherited
109  MetaSkeletonPtr cloneMetaSkeleton(const std::string& cloneName) const override;
110 
113  bool isStillChain() const;
114 
115 protected:
116 
118  Chain(const Chain::Criteria& _criteria, const std::string& _name = "Chain");
119 
121  Chain(BodyNode* _start, BodyNode* _target,
122  const std::string& _name = "Chain");
123 
125  Chain(BodyNode* _start, BodyNode* _target,
126  IncludeBothTag, const std::string& _name = "Chain");
127 
128 };
129 
130 } // namespace dynamics
131 } // namespace dart
132 
133 #endif // DART_DYNAMICS_CHAIN_HPP_
BodyNode class represents a single node of the skeleton.
Definition: BodyNode.hpp:78
Chain is a specialized type of Linkage that represents a single unbranching and fully connected seque...
Definition: Chain.hpp:47
IncludeBothTag
This enum is used to specify to the create() function that both the start and the target BodyNodes sh...
Definition: Chain.hpp:83
@ IncludeBoth
Definition: Chain.hpp:83
Chain(const Chain::Criteria &_criteria, const std::string &_name="Chain")
Constructor for the Chain class.
Definition: Chain.cpp:231
ChainPtr cloneChain() const
Creates and returns a clone of this Chain.
Definition: Chain.cpp:162
virtual MetaSkeletonPtr cloneMetaSkeleton(const std::string &cloneName) const=0
Creates an identical clone of this MetaSkeleton.
bool isStillChain() const
Returns false if this Chain has been broken, or some new Branching has been added.
Definition: Chain.cpp:203
static ChainPtr create(const Chain::Criteria &_criteria, const std::string &_name="Chain")
Create a Chain given some Chain::Criteria.
Definition: Chain.cpp:135
A Linkage is a ReferentialSkeleton with the special property that all the BodyNodes included in it fo...
Definition: Linkage.hpp:54
MetaSkeletonPtr cloneMetaSkeleton() const
Creates an identical clone of this MetaSkeleton.
Definition: MetaSkeleton.cpp:318
std::shared_ptr< Chain > ChainPtr
Definition: SmartPointer.hpp:76
std::shared_ptr< MetaSkeleton > MetaSkeletonPtr
Definition: SmartPointer.hpp:68
Definition: BulletCollisionDetector.cpp:63
Definition: Chain.hpp:51
WeakBodyNodePtr mTarget
mTarget will be the final BodyNode in the chain, unless there is a branching or a FreeJoint along the...
Definition: Chain.hpp:63
Criteria(BodyNode *_start, BodyNode *_target, bool _includeBoth=false)
Constructor for Chain::Criteria.
Definition: Chain.cpp:40
Linkage::Criteria convert() const
Convert this Criteria into Linkage::Criteria.
Definition: Chain.cpp:56
std::vector< BodyNode * > satisfy() const
Return a vector of BodyNodes that form a chain.
Definition: Chain.cpp:50
bool mIncludeBoth
Set this to true if both the start and the target BodyNode should be included.
Definition: Chain.hpp:68
WeakBodyNodePtr mStart
mStart will be the first BodyNode in the chain
Definition: Chain.hpp:59
The Criteria class is used to specify how a Linkage should be constructed.
Definition: Linkage.hpp:59