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										 |  |  | /**
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							|  |  |  |  *  @file  testPose3Pose.cpp | 
					
						
							|  |  |  |  *  @brief Unit tests for Pose3Factor Class | 
					
						
							|  |  |  |  *  @authors Frank Dellaert | 
					
						
							|  |  |  |  **/ | 
					
						
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							|  |  |  | #include <iostream>
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										 |  |  | #include <boost/assign/std/list.hpp>
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							|  |  |  | using namespace boost::assign; | 
					
						
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										 |  |  | #include <CppUnitLite/TestHarness.h>
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										 |  |  | #include "pose3SLAM.h"
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							|  |  |  | using namespace std; | 
					
						
							|  |  |  | using namespace gtsam; | 
					
						
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										 |  |  | /* ************************************************************************* */ | 
					
						
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										 |  |  | TEST( Pose3Factor, error ) | 
					
						
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										 |  |  | { | 
					
						
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										 |  |  | 	// Create example
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							|  |  |  | 	Pose3 t1; // origin
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							|  |  |  | 	Pose3 t2(rodriguez(0.1,0.2,0.3),Point3(0,1,0)); | 
					
						
							|  |  |  | 	Pose3 z(rodriguez(0.2,0.2,0.3),Point3(0,1.1,0));; | 
					
						
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							|  |  |  | 	// Create factor
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										 |  |  | 	SharedGaussian I6(noiseModel::Unit::Create(6)); | 
					
						
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										 |  |  | 	Pose3Factor factor(1,2, z, I6); | 
					
						
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							|  |  |  | 	// Create config
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							|  |  |  | 	Pose3Config x; | 
					
						
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												Large gtsam refactoring
To support faster development *and* better performance Richard and I pushed through a large refactoring of NonlinearFactors.
The following are the biggest changes:
1) NonLinearFactor1 and NonLinearFactor2 are now templated on Config, Key type, and X type, where X is the argument to the measurement function.
2) The measurement itself is no longer kept in the nonlinear factor. Instead, a derived class (see testVSLAMFactor, testNonlinearEquality, testPose3Factor etc...) has to implement a function to compute the errors, "evaluateErrors". Instead of (h(x)-z), it needs to return (z-h(x)), so Ax-b is an approximation of the error. IMPORTANT: evaluateErrors needs - if asked - *combine* the calculation of the function value h(x) and the derivatives dh(x)/dx. This was a major performance issue. To do this, boost::optional<Matrix&> arguments are provided, and tin EvaluateErrors you just  says something like
	if (H) *H = Matrix_(3,6,....);
3) We are no longer using int or strings for nonlinear factors. Instead, the preferred key type is now Symbol, defined in Key.h. This is both fast and cool: you can construct it from an int, and cast it to a strong. It also does type checking: a Symbol<Pose3,'x'> will not match a Symbol<Pose2,'x'>
4) minor: take a look at LieConfig.h: it help you avoid writing a lot of code bu automatically creating configs for a certain type. See e.g. Pose3Config.h. A "double" LieConfig is on the way - Thanks Richard and Manohar !
											
										 
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										 |  |  | 	x.insert(1,t1); | 
					
						
							|  |  |  | 	x.insert(2,t2); | 
					
						
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							| 
									
										
											  
											
												Large gtsam refactoring
To support faster development *and* better performance Richard and I pushed through a large refactoring of NonlinearFactors.
The following are the biggest changes:
1) NonLinearFactor1 and NonLinearFactor2 are now templated on Config, Key type, and X type, where X is the argument to the measurement function.
2) The measurement itself is no longer kept in the nonlinear factor. Instead, a derived class (see testVSLAMFactor, testNonlinearEquality, testPose3Factor etc...) has to implement a function to compute the errors, "evaluateErrors". Instead of (h(x)-z), it needs to return (z-h(x)), so Ax-b is an approximation of the error. IMPORTANT: evaluateErrors needs - if asked - *combine* the calculation of the function value h(x) and the derivatives dh(x)/dx. This was a major performance issue. To do this, boost::optional<Matrix&> arguments are provided, and tin EvaluateErrors you just  says something like
	if (H) *H = Matrix_(3,6,....);
3) We are no longer using int or strings for nonlinear factors. Instead, the preferred key type is now Symbol, defined in Key.h. This is both fast and cool: you can construct it from an int, and cast it to a strong. It also does type checking: a Symbol<Pose3,'x'> will not match a Symbol<Pose2,'x'>
4) minor: take a look at LieConfig.h: it help you avoid writing a lot of code bu automatically creating configs for a certain type. See e.g. Pose3Config.h. A "double" LieConfig is on the way - Thanks Richard and Manohar !
											
										 
											2010-01-14 06:25:03 +08:00
										 |  |  | 	// Get error h(x)-z -> logmap(z,h(x)) = logmap(z,between(t1,t2))
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										 |  |  | 	Vector actual = factor.unwhitenedError(x); | 
					
						
							| 
									
										
											  
											
												Large gtsam refactoring
To support faster development *and* better performance Richard and I pushed through a large refactoring of NonlinearFactors.
The following are the biggest changes:
1) NonLinearFactor1 and NonLinearFactor2 are now templated on Config, Key type, and X type, where X is the argument to the measurement function.
2) The measurement itself is no longer kept in the nonlinear factor. Instead, a derived class (see testVSLAMFactor, testNonlinearEquality, testPose3Factor etc...) has to implement a function to compute the errors, "evaluateErrors". Instead of (h(x)-z), it needs to return (z-h(x)), so Ax-b is an approximation of the error. IMPORTANT: evaluateErrors needs - if asked - *combine* the calculation of the function value h(x) and the derivatives dh(x)/dx. This was a major performance issue. To do this, boost::optional<Matrix&> arguments are provided, and tin EvaluateErrors you just  says something like
	if (H) *H = Matrix_(3,6,....);
3) We are no longer using int or strings for nonlinear factors. Instead, the preferred key type is now Symbol, defined in Key.h. This is both fast and cool: you can construct it from an int, and cast it to a strong. It also does type checking: a Symbol<Pose3,'x'> will not match a Symbol<Pose2,'x'>
4) minor: take a look at LieConfig.h: it help you avoid writing a lot of code bu automatically creating configs for a certain type. See e.g. Pose3Config.h. A "double" LieConfig is on the way - Thanks Richard and Manohar !
											
										 
											2010-01-14 06:25:03 +08:00
										 |  |  | 	Vector expected = logmap(z,between(t1,t2)); | 
					
						
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										 |  |  | 	CHECK(assert_equal(expected,actual)); | 
					
						
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										 |  |  | } | 
					
						
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							|  |  |  | /* ************************************************************************* */ | 
					
						
							|  |  |  | int main() { | 
					
						
							|  |  |  | 	TestResult tr; | 
					
						
							|  |  |  | 	return TestRegistry::runAllTests(tr); | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | /* ************************************************************************* */ |