Tesseract  3.02
Public Member Functions | Static Public Member Functions
tesseract::EquationDetectBase Class Reference

#include <equationdetectbase.h>

Inheritance diagram for tesseract::EquationDetectBase:
tesseract::EquationDetect

List of all members.

Public Member Functions

 EquationDetectBase ()
virtual ~EquationDetectBase ()
virtual int LabelSpecialText (TO_BLOCK *to_block)=0
virtual int FindEquationParts (ColPartitionGrid *part_grid, ColPartitionSet **best_columns)=0

Static Public Member Functions

static void RenderSpecialText (Pix *pix, BLOBNBOX *blob)

Detailed Description

Definition at line 32 of file equationdetectbase.h.

Constructor & Destructor Documentation

tesseract::EquationDetectBase::EquationDetectBase ( )

Definition at line 26 of file equationdetectbase.cpp.

                                       {
}
tesseract::EquationDetectBase::~EquationDetectBase ( ) [virtual]

Definition at line 29 of file equationdetectbase.cpp.

                                        {
}

Member Function Documentation

virtual int tesseract::EquationDetectBase::FindEquationParts ( ColPartitionGrid *  part_grid,
ColPartitionSet **  best_columns 
) [pure virtual]

Implemented in tesseract::EquationDetect.

virtual int tesseract::EquationDetectBase::LabelSpecialText ( TO_BLOCK *  to_block) [pure virtual]

Implemented in tesseract::EquationDetect.

void tesseract::EquationDetectBase::RenderSpecialText ( Pix *  pix,
BLOBNBOX *  blob 
) [static]

Definition at line 32 of file equationdetectbase.cpp.

                                                           {
  ASSERT_HOST(pix != NULL && pixGetDepth(pix) == 32 && blob != NULL);
  const TBOX& tbox = blob->bounding_box();
  int height = pixGetHeight(pix);
  const int box_width = 5;

  // Coordinate translation: tesseract use left bottom as the original, while
  // leptonica uses left top as the original.
  Box *box = boxCreate(tbox.left(), height - tbox.top(),
                         tbox.width(), tbox.height());
  switch (blob->special_text_type()) {
    case BSTT_MATH:  // Red box.
      pixRenderBoxArb(pix, box, box_width, 255, 0, 0);
      break;
    case BSTT_DIGIT:  // cyan box.
      pixRenderBoxArb(pix, box, box_width, 0, 255, 255);
      break;
    case BSTT_ITALIC:  // Green box.
      pixRenderBoxArb(pix, box, box_width, 0, 255, 0);
      break;
    case BSTT_UNCLEAR:  // blue box.
      pixRenderBoxArb(pix, box, box_width, 0, 255, 0);
      break;
    case BSTT_NONE:
    default:
      // yellow box.
      pixRenderBoxArb(pix, box, box_width, 255, 255, 0);
      break;
  }
  boxDestroy(&box);
}
The documentation for this class was generated from the following files: