12345qiupeng
/
gtsam
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
gtsam/cpp/testSimulated3D.cpp

55 lines
1.6 KiB
C++
Raw Normal View History

Fixing directory structure
2009-08-22 06:23:24 +08:00
/**
* @file testSimulated3D.cpp
* @brief Unit tests for simulated 3D measurement functions
* @author Alex Cunningham
**/
#include <iostream>
#include <CppUnitLite/TestHarness.h>
#include "Pose3.h"
#include "numericalDerivative.h"
#include "Simulated3D.h"
using namespace gtsam;
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
using namespace simulated3D;
Fixing directory structure
2009-08-22 06:23:24 +08:00
/* ************************************************************************* */
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
TEST( simulated3D, Dprior )
Fixing directory structure
2009-08-22 06:23:24 +08:00
{
Pose3 x1(rodriguez(0, 0, 1.57), Point3(1, 5, 0));
Large refactoring - made several Lie group functions global, which used to be member functions, to treat Lie groups more uniformly. Also created Lie.h, and a preprocessor flag in numericalDerivative to change the coordinate frame derivatives are reported in. gtsam and easylib build and pass unit tests, but this will probably break other projects, which will require a few small changes to work again. Email coming in a few minutes to describe the changes.
2010-01-08 08:40:17 +08:00
Vector v = logmap(x1);
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
Matrix numerical = numericalDerivative11(prior,v);
Matrix computed = Dprior(v);
Fixing directory structure
2009-08-22 06:23:24 +08:00
CHECK(assert_equal(numerical,computed,1e-9));
}
/* ************************************************************************* */
TEST( simulated3D, DOdo1 )
{
Pose3 x1(rodriguez(0, 0, 1.57), Point3(1, 5, 0));
Large refactoring - made several Lie group functions global, which used to be member functions, to treat Lie groups more uniformly. Also created Lie.h, and a preprocessor flag in numericalDerivative to change the coordinate frame derivatives are reported in. gtsam and easylib build and pass unit tests, but this will probably break other projects, which will require a few small changes to work again. Email coming in a few minutes to describe the changes.
2010-01-08 08:40:17 +08:00
Vector v1 = logmap(x1);
Fixing directory structure
2009-08-22 06:23:24 +08:00
Pose3 x2(rodriguez(0, 0, 0), Point3(2, 3, 0));
Large refactoring - made several Lie group functions global, which used to be member functions, to treat Lie groups more uniformly. Also created Lie.h, and a preprocessor flag in numericalDerivative to change the coordinate frame derivatives are reported in. gtsam and easylib build and pass unit tests, but this will probably break other projects, which will require a few small changes to work again. Email coming in a few minutes to describe the changes.
2010-01-08 08:40:17 +08:00
Vector v2 = logmap(x2);
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
Matrix numerical = numericalDerivative21(odo,v1,v2);
Matrix computed = Dodo1(v1,v2);
Fixing directory structure
2009-08-22 06:23:24 +08:00
CHECK(assert_equal(numerical,computed,1e-9));
}
/* ************************************************************************* */
TEST( simulated3D, DOdo2 )
{
Pose3 x1(rodriguez(0, 0, 1.57), Point3(1, 5, 0));
Large refactoring - made several Lie group functions global, which used to be member functions, to treat Lie groups more uniformly. Also created Lie.h, and a preprocessor flag in numericalDerivative to change the coordinate frame derivatives are reported in. gtsam and easylib build and pass unit tests, but this will probably break other projects, which will require a few small changes to work again. Email coming in a few minutes to describe the changes.
2010-01-08 08:40:17 +08:00
Vector v1 = logmap(x1);
Fixing directory structure
2009-08-22 06:23:24 +08:00
Pose3 x2(rodriguez(0, 0, 0), Point3(2, 3, 0));
Large refactoring - made several Lie group functions global, which used to be member functions, to treat Lie groups more uniformly. Also created Lie.h, and a preprocessor flag in numericalDerivative to change the coordinate frame derivatives are reported in. gtsam and easylib build and pass unit tests, but this will probably break other projects, which will require a few small changes to work again. Email coming in a few minutes to describe the changes.
2010-01-08 08:40:17 +08:00
Vector v2 = logmap(x2);
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
Matrix numerical = numericalDerivative22(odo,v1,v2);
Matrix computed = Dodo2(v1,v2);
Fixing directory structure
2009-08-22 06:23:24 +08:00
CHECK(assert_equal(numerical,computed,1e-9));
}
/* ************************************************************************* */
int main() { TestResult tr; return TestRegistry::runAllTests(tr);}
/* ************************************************************************* */