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Merged in feature/expressions (pull request #45) 

Pull request for debugging Expression<double> issue
release/4.3a0
Frank Dellaert 2014-11-24 18:40:31 +01:00
parent f567f5a5dd db6c9ff378
commit ea02e577f5
12 changed files with 341 additions and 89 deletions
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106
.cproject
View File

@ -592,6 +592,7 @@
</target>
<target name="tests/testBayesTree.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>tests/testBayesTree.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -599,6 +600,7 @@
</target>
<target name="testBinaryBayesNet.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>testBinaryBayesNet.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -646,6 +648,7 @@
</target>
<target name="testSymbolicBayesNet.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>testSymbolicBayesNet.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -653,6 +656,7 @@
</target>
<target name="tests/testSymbolicFactor.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>tests/testSymbolicFactor.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -660,6 +664,7 @@
</target>
<target name="testSymbolicFactorGraph.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>testSymbolicFactorGraph.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -675,6 +680,7 @@
</target>
<target name="tests/testBayesTree" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>tests/testBayesTree</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -1122,6 +1128,7 @@
</target>
<target name="testErrors.run" path="linear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>testErrors.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -1351,6 +1358,46 @@
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testBTree.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j5</buildArguments>
<buildTarget>testBTree.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testDSF.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j5</buildArguments>
<buildTarget>testDSF.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testDSFMap.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j5</buildArguments>
<buildTarget>testDSFMap.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testDSFVector.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j5</buildArguments>
<buildTarget>testDSFVector.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testFixedVector.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j5</buildArguments>
<buildTarget>testFixedVector.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="all" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j2</buildArguments>
@ -1433,7 +1480,6 @@
</target>
<target name="testSimulated2DOriented.run" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>testSimulated2DOriented.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -1473,7 +1519,6 @@
</target>
<target name="testSimulated2D.run" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>testSimulated2D.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -1481,7 +1526,6 @@
</target>
<target name="testSimulated3D.run" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>testSimulated3D.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -1495,46 +1539,6 @@
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testBTree.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j5</buildArguments>
<buildTarget>testBTree.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testDSF.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j5</buildArguments>
<buildTarget>testDSF.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testDSFMap.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j5</buildArguments>
<buildTarget>testDSFMap.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testDSFVector.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j5</buildArguments>
<buildTarget>testDSFVector.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testFixedVector.run" path="build/gtsam_unstable/base/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j5</buildArguments>
<buildTarget>testFixedVector.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testEliminationTree.run" path="build/gtsam/inference/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j5</buildArguments>
@ -1792,6 +1796,7 @@
</target>
<target name="Generate DEB Package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>cpack</buildCommand>
<buildArguments/>
<buildTarget>-G DEB</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -1799,6 +1804,7 @@
</target>
<target name="Generate RPM Package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>cpack</buildCommand>
<buildArguments/>
<buildTarget>-G RPM</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -1806,6 +1812,7 @@
</target>
<target name="Generate TGZ Package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>cpack</buildCommand>
<buildArguments/>
<buildTarget>-G TGZ</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -1813,6 +1820,7 @@
</target>
<target name="Generate TGZ Source Package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>cpack</buildCommand>
<buildArguments/>
<buildTarget>--config CPackSourceConfig.cmake</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -2627,6 +2635,7 @@
</target>
<target name="testGraph.run" path="build/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>testGraph.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -2634,6 +2643,7 @@
</target>
<target name="testJunctionTree.run" path="build/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>testJunctionTree.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -2641,6 +2651,7 @@
</target>
<target name="testSymbolicBayesNetB.run" path="build/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>testSymbolicBayesNetB.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>
@ -2758,6 +2769,14 @@
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testBasisDecompositions.run" path="build/gtsam_unstable/nonlinear/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j4</buildArguments>
<buildTarget>testBasisDecompositions.run</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="testGaussianFactor.run" path="build/linear/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments>-j2</buildArguments>
@ -3168,7 +3187,6 @@
</target>
<target name="tests/testGaussianISAM2" path="build/slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>tests/testGaussianISAM2</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>false</useDefaultCommand>

2
gtsam/base/Manifold.h
View File

@ -235,7 +235,7 @@ struct DefaultChart<double> {
static double retract(double origin, const vector& d) {
return origin + d[0];
}
static const int getDimension(double) {
static int getDimension(double) {
return 1;
}
};

12
gtsam/geometry/Point3.cpp
View File

@ -111,6 +111,18 @@ double Point3::norm(boost::optional<Matrix&> H) const {
return r;
}
/* ************************************************************************* */
double Point3::norm(boost::optional<Eigen::Matrix<double,1,3>&> H) const {
double r = norm();
if (H) {
if (fabs(r) > 1e-10)
*H << x_ / r, y_ / r, z_ / r;
else
*H << 1, 1, 1; // really infinity, why 1 ?
}
return r;
}
/* ************************************************************************* */
Point3 Point3::normalize(boost::optional<Matrix&> H) const {
Point3 normalized = *this / norm();

3
gtsam/geometry/Point3.h
View File

@ -186,6 +186,9 @@ namespace gtsam {
/** Distance of the point from the origin, with Jacobian */
double norm(boost::optional<Matrix&> H) const;
/** Distance of the point from the origin, with Jacobian */
double norm(boost::optional<Eigen::Matrix<double,1,3>&> H) const;
/** normalize, with optional Jacobian */
Point3 normalize(boost::optional<Matrix&> H = boost::none) const;

16
gtsam_unstable/nonlinear/CallRecord.h
View File

@ -46,7 +46,7 @@ namespace internal {
* it just passes dense Eigen matrices through.
*/
template<bool ConvertToDynamicRows>
struct ConvertToDynamicRowsIf {
struct ConvertToVirtualFunctionSupportedMatrixType {
template<typename Derived>
static Eigen::Matrix<double, Eigen::Dynamic, Derived::ColsAtCompileTime> convert(
const Eigen::MatrixBase<Derived> & x) {
@ -55,7 +55,13 @@ struct ConvertToDynamicRowsIf {
};
template<>
struct ConvertToDynamicRowsIf<false> {
struct ConvertToVirtualFunctionSupportedMatrixType<false> {
template<typename Derived>
static const Eigen::Matrix<double, Derived::RowsAtCompileTime, Derived::ColsAtCompileTime> convert(
const Eigen::MatrixBase<Derived> & x) {
return x;
}
// special treatment of matrices that don't need conversion
template<int Rows, int Cols>
static const Eigen::Matrix<double, Rows, Cols> & convert(
const Eigen::Matrix<double, Rows, Cols> & x) {
@ -143,11 +149,11 @@ struct CallRecord: virtual private internal::ReverseADInterface<
_startReverseAD(jacobians);
}
template<int Rows>
inline void reverseAD(const Eigen::Matrix<double, Rows, Cols> & dFdT,
template<typename Derived>
inline void reverseAD(const Eigen::MatrixBase<Derived> & dFdT,
JacobianMap& jacobians) const {
_reverseAD(
internal::ConvertToDynamicRowsIf<(Rows > MaxVirtualStaticRows)>::convert(
internal::ConvertToVirtualFunctionSupportedMatrixType<(Derived::RowsAtCompileTime > MaxVirtualStaticRows)>::convert(
dFdT), jacobians);
}

40
gtsam_unstable/nonlinear/Expression-inl.h
View File

@ -64,19 +64,37 @@ public:
};
//-----------------------------------------------------------------------------
/// Handle Leaf Case: reverseAD ends here, by writing a matrix into Jacobians
template<int ROWS, int COLS>
void handleLeafCase(const Eigen::Matrix<double, ROWS, COLS>& dTdA,
namespace internal {
template <bool UseBlock, typename Derived>
struct UseBlockIf {
static void addToJacobian(const Eigen::MatrixBase<Derived>& dTdA,
JacobianMap& jacobians, Key key){
jacobians(key).block<ROWS, COLS>(0, 0) += dTdA; // block makes HUGE difference
}
/// Handle Leaf Case for Dynamic ROWS Matrix type (slower)
template<int COLS>
inline void handleLeafCase(
const Eigen::Matrix<double, Eigen::Dynamic, COLS>& dTdA,
// block makes HUGE difference
jacobians(key).block<Derived::RowsAtCompileTime, Derived::ColsAtCompileTime>(0, 0) += dTdA;
};
};
/// Handle Leaf Case for Dynamic Matrix type (slower)
template <typename Derived>
struct UseBlockIf<false, Derived> {
static void addToJacobian(const Eigen::MatrixBase<Derived>& dTdA,
JacobianMap& jacobians, Key key) {
jacobians(key) += dTdA;
}
};
}
/// Handle Leaf Case: reverseAD ends here, by writing a matrix into Jacobians
template<typename Derived>
void handleLeafCase(const Eigen::MatrixBase<Derived>& dTdA,
JacobianMap& jacobians, Key key) {
internal::UseBlockIf<
Derived::RowsAtCompileTime != Eigen::Dynamic &&
Derived::ColsAtCompileTime != Eigen::Dynamic,
Derived>
::addToJacobian(dTdA, jacobians, key);
}
//-----------------------------------------------------------------------------
/**
@ -166,9 +184,9 @@ public:
void reverseAD(const Eigen::MatrixBase<DerivedMatrix> & dTdA,
JacobianMap& jacobians) const {
if (kind == Leaf)
handleLeafCase(dTdA.eval(), jacobians, content.key);
handleLeafCase(dTdA, jacobians, content.key);
else if (kind == Function)
content.ptr->reverseAD(dTdA.eval(), jacobians);
content.ptr->reverseAD(dTdA, jacobians);
}
/// Define type so we can apply it as a meta-function

13
gtsam_unstable/nonlinear/ExpressionFactor.h
View File

@ -81,6 +81,8 @@ public:
*/
virtual Vector unwhitenedError(const Values& x,
boost::optional<std::vector<Matrix>&> H = boost::none) const {
// TODO(PTF) Is this a place for custom charts?
DefaultChart<T> chart;
if (H) {
// H should be pre-allocated
assert(H->size()==size());
@ -95,18 +97,19 @@ public:
T value = expression_.value(x, map); // <<< Reverse AD happens here !
// Copy blocks into the vector of jacobians passed in
for (DenseIndex i = 0; i < size(); i++)
for (DenseIndex i = 0; i < static_cast<DenseIndex>(size()); i++)
H->at(i) = Ab(i);
return measurement_.localCoordinates(value);
return chart.local(measurement_, value);
} else {
const T& value = expression_.value(x);
return measurement_.localCoordinates(value);
return chart.local(measurement_, value);
}
}
virtual boost::shared_ptr<GaussianFactor> linearize(const Values& x) const {
// TODO(PTF) Is this a place for custom charts?
DefaultChart<T> chart;
// Only linearize if the factor is active
if (!active(x))
return boost::shared_ptr<JacobianFactor>();
@ -128,7 +131,7 @@ public:
// Evaluate error to get Jacobians and RHS vector b
T value = expression_.value(x, map); // <<< Reverse AD happens here !
Ab(size()).col(0) = -measurement_.localCoordinates(value);
Ab(size()).col(0) = -chart.local(measurement_, value);
// Whiten the corresponding system, Ab already contains RHS
Vector dummy(Dim);

26
gtsam_unstable/nonlinear/expressions.h Normal file
View File

@ -0,0 +1,26 @@
/**
* @file expressions.h
* @brief Common expressions, both linear and non-linear
* @date Nov 23, 2014
* @author Frank Dellaert
*/
#pragma once
#include <gtsam_unstable/nonlinear/Expression.h>
#include <boost/bind.hpp>
namespace gtsam {
// Generics
template<class T>
Expression<T> between(const Expression<T>& t1, const Expression<T>& t2) {
return Expression<T>(t1, &T::between, t2);
}
typedef Expression<double> double_;
typedef Expression<Vector3> Vector3_;
} // \namespace gtsam

119
gtsam_unstable/nonlinear/tests/testBasisDecompositions.cpp Normal file
View File

@ -0,0 +1,119 @@
/* ----------------------------------------------------------------------------
* GTSAM Copyright 2010, Georgia Tech Research Corporation,
* Atlanta, Georgia 30332-0415
* All Rights Reserved
* Authors: Frank Dellaert, et al. (see THANKS for the full author list)
* See LICENSE for the license information
* -------------------------------------------------------------------------- */
/**
* @file testBasisDecompositions.cpp
* @date November 23, 2014
* @author Frank Dellaert
* @brief unit tests for Basis Decompositions w Expressions
*/
#include <gtsam_unstable/nonlinear/expressions.h>
#include <gtsam_unstable/nonlinear/ExpressionFactor.h>
#include <gtsam/linear/VectorValues.h>
#include <gtsam/linear/GaussianFactorGraph.h>
#include <gtsam/base/numericalDerivative.h>
#include <gtsam/base/Testable.h>
#include <CppUnitLite/TestHarness.h>
#include <boost/assign/list_of.hpp>
using boost::assign::list_of;
using namespace std;
using namespace gtsam;
noiseModel::Diagonal::shared_ptr model = noiseModel::Unit::Create(1);
/// Fourier
template<int N>
class Fourier {
public:
typedef Eigen::Matrix<double, N, 1> Coefficients;
typedef Eigen::Matrix<double, 1, N> Jacobian;
private:
double x_;
Jacobian H_;
public:
/// Constructor
Fourier(double x) :
x_(x) {
H_(0, 0) = 1;
for (size_t i = 1; i < N; i += 2) {
H_(0, i) = cos(i * x);
H_(0, i + 1) = sin(i * x);
}
}
/// Given coefficients c, predict value for x
double operator()(const Coefficients& c, boost::optional<Jacobian&> H) {
if (H)
(*H) = H_;
return H_ * c;
}
};
//******************************************************************************
TEST(BasisDecompositions, Fourier) {
Fourier<3> fx(0);
Eigen::Matrix<double, 1, 3> expectedH, actualH;
Vector3 c(1.5661, 1.2717, 1.2717);
expectedH = numericalDerivative11<double, Vector3>(
boost::bind(&Fourier<3>::operator(), fx, _1, boost::none), c);
EXPECT_DOUBLES_EQUAL(c[0]+c[1], fx(c,actualH), 1e-9);
EXPECT(assert_equal((Matrix)expectedH, actualH));
}
//******************************************************************************
TEST(BasisDecompositions, FourierExpression) {
// Create linear factor graph
GaussianFactorGraph g;
Key key(1);
Vector3_ c(key);
for (size_t i = 0; i < 16; i++) {
double x = i * M_PI / 8, y = exp(sin(x) + cos(x));
// Manual JacobianFactor
Matrix A(1, 3);
A << 1, cos(x), sin(x);
Vector b(1);
b << y;
JacobianFactor f1(key, A, b, model);
// With ExpressionFactor
Expression<double> expression(Fourier<3>(x), c);
ExpressionFactor<double> f2(model, y, expression);
g.add(f1);
}
// Solve
VectorValues actual = g.optimize();
// Check
Vector3 expected(1.5661, 1.2717, 1.2717);
EXPECT(assert_equal((Vector) expected, actual.at(key),1e-4));
}
//******************************************************************************
int main() {
TestResult tr;
return TestRegistry::runAllTests(tr);
}
//******************************************************************************

79
gtsam_unstable/nonlinear/tests/testExpression.cpp
View File

@ -73,27 +73,84 @@ TEST(Expression, Leaves) {
}
/* ************************************************************************* */
// Unary(Leaf)
namespace unary {
Point2 f0(const Point3& p, boost::optional<Matrix23&> H) {
return Point2();
}
LieScalar f1(const Point3& p, boost::optional<Eigen::Matrix<double, 1, 3>&> H) {
return LieScalar(0.0);
}
double f2(const Point3& p, boost::optional<Eigen::Matrix<double, 1, 3>&> H) {
return 0.0;
}
Expression<Point3> p(1);
set<Key> expected = list_of(1);
}
TEST(Expression, Unary0) {
using namespace unary;
Expression<Point2> e(f0, p);
EXPECT(expected == e.keys());
}
TEST(Expression, Unary1) {
using namespace unary;
Expression<double> e(f1, p);
EXPECT(expected == e.keys());
}
TEST(Expression, Unary2) {
using namespace unary;
Expression<double> e(f2, p);
EXPECT(expected == e.keys());
}
/* ************************************************************************* */
//Nullary Method
TEST(Expression, NullaryMethod) {
//TEST(Expression, NullaryMethod) {
// Expression<Point3> p(67);
// Expression<LieScalar> norm(p, &Point3::norm);
// Values values;
// values.insert(67,Point3(3,4,5));
// Augmented<LieScalar> a = norm.augmented(values);
// EXPECT(a.value() == sqrt(50));
// JacobianMap expected;
// expected[67] = (Matrix(1,3) << 3/sqrt(50),4/sqrt(50),5/sqrt(50));
// EXPECT(assert_equal(expected.at(67),a.jacobians().at(67)));
//}
// Create expression
Expression<Point3> p(67);
Expression<double> norm(p, &Point3::norm);
// Create Values
Values values;
values.insert(67, Point3(3, 4, 5));
// Pre-allocate JacobianMap
FastVector<Key> keys;
keys.push_back(67);
FastVector<int> dims;
dims.push_back(3);
VerticalBlockMatrix Ab(dims, 1);
JacobianMap map(keys, Ab);
// Get value and Jacobian
double actual = norm.value(values, map);
// Check all
EXPECT(actual == sqrt(50));
Matrix expected(1, 3);
expected << 3.0 / sqrt(50.0), 4.0 / sqrt(50.0), 5.0 / sqrt(50.0);
EXPECT(assert_equal(expected,Ab(0)));
}
/* ************************************************************************* */
// Binary(Leaf,Leaf)
namespace binary {
// Create leaves
double doubleF(const Pose3& pose, const Point3& point,
boost::optional<Eigen::Matrix<double, 1, 6>&> H1,
boost::optional<Eigen::Matrix<double, 1, 3>&> H2) {
return 0.0;
}
Expression<Pose3> x(1);
Expression<Point3> p(2);
Expression<Point3> p_cam(x, &Pose3::transform_to, p);
}
/* ************************************************************************* */
// Check that creating an expression to double compiles
TEST(Expression, BinaryToDouble) {
using namespace binary;
Expression<double> p_cam(doubleF, x, p);
}
/* ************************************************************************* */
// keys
TEST(Expression, BinaryKeys) {
set<Key> expected = list_of(1)(2);

2
gtsam_unstable/nonlinear/tests/testExpressionFactor.cpp
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@ -22,8 +22,6 @@
#include <gtsam/slam/GeneralSFMFactor.h>
#include <gtsam/slam/ProjectionFactor.h>
#include <gtsam/slam/PriorFactor.h>
#include <gtsam/geometry/Pose3.h>
#include <gtsam/geometry/Cal3_S2.h>
#include <gtsam/base/Testable.h>
#include <CppUnitLite/TestHarness.h>

10
gtsam_unstable/slam/expressions.h
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@ -7,20 +7,12 @@
#pragma once
#include <gtsam_unstable/nonlinear/Expression.h>
#include <gtsam_unstable/nonlinear/expressions.h>
#include <gtsam/geometry/Cal3_S2.h>
#include <gtsam/geometry/PinholeCamera.h>
#include <boost/bind.hpp>
namespace gtsam {
// Generics
template<class T>
Expression<T> between(const Expression<T>& t1, const Expression<T>& t2) {
return Expression<T>(t1, &T::between, t2);
}
// 2D Geometry
typedef Expression<Point2> Point2_;