tesseract::LLSQTest Class Reference

Inheritance diagram for tesseract::LLSQTest:

Public Member Functions
void	TearDown () override
void	ExpectCorrectLine (const LLSQ &llsq, double m, double c, double rms, double pearson, double tolerance)
FCOORD	PtsMean (const std::vector< FCOORD > &pts)
void	VerifyRmsOrth (const std::vector< FCOORD > &pts, const FCOORD &orth)
void	ExpectCorrectVector (const LLSQ &llsq, FCOORD correct_mean_pt, FCOORD correct_vector, float tolerance)
Public Member Functions inherited from testing::Test
virtual	~Test ()

Protected Member Functions
void	SetUp () override
Protected Member Functions inherited from testing::Test
	Test ()
virtual void	SetUp ()
virtual void	TearDown ()

Additional Inherited Members
Static Public Member Functions inherited from testing::Test
static void	SetUpTestSuite ()
static void	TearDownTestSuite ()
static void	TearDownTestCase ()
static void	SetUpTestCase ()
static bool	HasFatalFailure ()
static bool	HasNonfatalFailure ()
static bool	IsSkipped ()
static bool	HasFailure ()
static void	RecordProperty (const std::string &key, const std::string &value)
static void	RecordProperty (const std::string &key, int value)

Detailed Description

Definition at line 18 of file linlsq_test.cc.

Member Function Documentation

ExpectCorrectLine()

void tesseract::LLSQTest::ExpectCorrectLine ( const LLSQ &  llsq, double  m, double  c, double  rms, double  pearson, double  tolerance  )

inline

Definition at line 27 of file linlsq_test.cc.

                                           {
    EXPECT_NEAR(m, llsq.m(), tolerance);
    EXPECT_NEAR(c, llsq.c(llsq.m()), tolerance);
    EXPECT_NEAR(rms, llsq.rms(llsq.m(), llsq.c(llsq.m())), tolerance);
    EXPECT_NEAR(pearson, llsq.pearson(), tolerance);
  }

ExpectCorrectVector()

void tesseract::LLSQTest::ExpectCorrectVector ( const LLSQ &  llsq, FCOORD  correct_mean_pt, FCOORD  correct_vector, float  tolerance  )

inline

Definition at line 56 of file linlsq_test.cc.

                                            {
    FCOORD mean_pt = llsq.mean_point();
    FCOORD vector = llsq.vector_fit();
    EXPECT_NEAR(correct_mean_pt.x(), mean_pt.x(), tolerance);
    EXPECT_NEAR(correct_mean_pt.y(), mean_pt.y(), tolerance);
    EXPECT_NEAR(correct_vector.x(), vector.x(), tolerance);
    EXPECT_NEAR(correct_vector.y(), vector.y(), tolerance);
  }

PtsMean()

FCOORD tesseract::LLSQTest::PtsMean ( const std::vector< FCOORD > &  pts )

inline

Definition at line 34 of file linlsq_test.cc.

                                               {
    FCOORD total(0, 0);
    for (const auto &p : pts) {
      total += p;
    }
    return (pts.size() > 0) ? total / pts.size() : total;
  }

SetUp()

void tesseract::LLSQTest::SetUp ( )

inlineoverrideprotectedvirtual

Reimplemented from testing::Test.

Definition at line 20 of file linlsq_test.cc.

                        {
    std::locale::global(std::locale(""));
  }

TearDown()

void tesseract::LLSQTest::TearDown ( )

inlineoverridevirtual

Reimplemented from testing::Test.

Definition at line 25 of file linlsq_test.cc.

{}

VerifyRmsOrth()

void tesseract::LLSQTest::VerifyRmsOrth ( const std::vector< FCOORD > &  pts, const FCOORD &  orth  )

inline

Definition at line 41 of file linlsq_test.cc.

                                                                       {
    LLSQ llsq;
    FCOORD xavg = PtsMean(pts);
    FCOORD nvec = !orth;
    nvec.normalise();
    double expected_answer = 0;
    for (const auto &p : pts) {
      llsq.add(p.x(), p.y());
      double dot = nvec % (p - xavg);
      expected_answer += dot * dot;
    }
    expected_answer /= pts.size();
    expected_answer = sqrt(expected_answer);
    EXPECT_NEAR(expected_answer, llsq.rms_orth(orth), 0.0001);
  }

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The documentation for this class was generated from the following file:

• /media/home/debian/src/github/tesseract-ocr/tesseract/unittest/linlsq_test.cc