#include <blobbox.h>

Inheritance diagram for BLOBNBOX:

Public Member Functions
	BLOBNBOX ()

	BLOBNBOX (C_BLOB *srcblob)

	~BLOBNBOX ()

void	rotate (FCOORD rotation)

void	reflect_box_in_y_axis ()

void	rotate_box (FCOORD rotation)

void	translate_box (ICOORD v)

void	merge (BLOBNBOX *nextblob)

void	really_merge (BLOBNBOX *other)

void	chop (BLOBNBOX_IT start_it, BLOBNBOX_IT blob_it, FCOORD rotation, float xheight)

void	NeighbourGaps (int gaps[BND_COUNT]) const

void	MinMaxGapsClipped (int h_min, int h_max, int v_min, int v_max) const

void	CleanNeighbours ()

int	GoodTextBlob () const

int	NoisyNeighbours () const

bool	DeletableNoise () const

bool	DefiniteIndividualFlow ()

bool	ConfirmNoTabViolation (const BLOBNBOX &other) const

bool	MatchingStrokeWidth (const BLOBNBOX &other, double fractional_tolerance, double constant_tolerance) const

TBOX	BoundsWithinLimits (int left, int right)

void	EstimateBaselinePosition ()

const TBOX &	bounding_box () const

void	set_bounding_box (const TBOX &new_box)

void	compute_bounding_box ()

const TBOX &	reduced_box () const

void	set_reduced_box (TBOX new_box)

inT32	enclosed_area () const

bool	joined_to_prev () const

bool	red_box_set () const

int	repeated_set () const

void	set_repeated_set (int set_id)

C_BLOB *	cblob () const

TabType	left_tab_type () const

void	set_left_tab_type (TabType new_type)

TabType	right_tab_type () const

void	set_right_tab_type (TabType new_type)

BlobRegionType	region_type () const

void	set_region_type (BlobRegionType new_type)

BlobSpecialTextType	special_text_type () const

void	set_special_text_type (BlobSpecialTextType new_type)

BlobTextFlowType	flow () const

void	set_flow (BlobTextFlowType value)

bool	vert_possible () const

void	set_vert_possible (bool value)

bool	horz_possible () const

void	set_horz_possible (bool value)

int	left_rule () const

void	set_left_rule (int new_left)

int	right_rule () const

void	set_right_rule (int new_right)

int	left_crossing_rule () const

void	set_left_crossing_rule (int new_left)

int	right_crossing_rule () const

void	set_right_crossing_rule (int new_right)

float	horz_stroke_width () const

void	set_horz_stroke_width (float width)

float	vert_stroke_width () const

void	set_vert_stroke_width (float width)

float	area_stroke_width () const

tesseract::ColPartition *	owner () const

void	set_owner (tesseract::ColPartition *new_owner)

bool	leader_on_left () const

void	set_leader_on_left (bool flag)

bool	leader_on_right () const

void	set_leader_on_right (bool flag)

BLOBNBOX *	neighbour (BlobNeighbourDir n) const

bool	good_stroke_neighbour (BlobNeighbourDir n) const

void	set_neighbour (BlobNeighbourDir n, BLOBNBOX *neighbour, bool good)

bool	IsDiacritic () const

int	base_char_top () const

int	base_char_bottom () const

int	baseline_position () const

int	line_crossings () const

void	set_line_crossings (int value)

void	set_diacritic_box (const TBOX &diacritic_box)

BLOBNBOX *	base_char_blob () const

void	set_base_char_blob (BLOBNBOX *blob)

void	set_owns_cblob (bool value)

bool	UniquelyVertical () const

bool	UniquelyHorizontal () const

ScrollView::Color	BoxColor () const

void	plot (ScrollView *window, ScrollView::Color blob_colour, ScrollView::Color child_colour)

void	ConstructionInit ()

void	ReInit ()

void	ClearNeighbours ()

Public Member Functions inherited from ELIST_LINK
	ELIST_LINK ()

	ELIST_LINK (const ELIST_LINK &)

void	operator= (const ELIST_LINK &)

Static Public Member Functions
static BLOBNBOX *	RealBlob (C_OUTLINE *outline)

static bool	IsTextType (BlobRegionType type)

static bool	IsImageType (BlobRegionType type)

static bool	IsLineType (BlobRegionType type)

static bool	UnMergeableType (BlobRegionType type)

static void	CleanNeighbours (BLOBNBOX_LIST *blobs)

static void	DeleteNoiseBlobs (BLOBNBOX_LIST *blobs)

static void	ComputeEdgeOffsets (Pix thresholds, Pix grey, BLOBNBOX_LIST *blobs)

static void	PlotBlobs (BLOBNBOX_LIST list, ScrollView::Color body_colour, ScrollView::Color child_colour, ScrollView win)

static void	PlotNoiseBlobs (BLOBNBOX_LIST list, ScrollView::Color body_colour, ScrollView::Color child_colour, ScrollView win)

static ScrollView::Color	TextlineColor (BlobRegionType region_type, BlobTextFlowType flow_type)

Detailed Description

Definition at line 128 of file blobbox.h.

Constructor & Destructor Documentation

BLOBNBOX::BLOBNBOX ( )

inline

Definition at line 131 of file blobbox.h.

                {
       ConstructionInit();
     }

BLOBNBOX::BLOBNBOX ( C_BLOB * srcblob )

inlineexplicit

Definition at line 134 of file blobbox.h.

                                        {
       box = srcblob->bounding_box();
       ConstructionInit();
       cblob_ptr = srcblob;
       area = static_cast<int>(srcblob->area());
     }

BLOBNBOX::~BLOBNBOX ( )

inline

Definition at line 140 of file blobbox.h.

                 {
       if (owns_cblob_) delete cblob_ptr;
     }

Member Function Documentation

float BLOBNBOX::area_stroke_width ( ) const

inline

Definition at line 334 of file blobbox.h.

                                     {
       return area_stroke_width_;
     }

BLOBNBOX* BLOBNBOX::base_char_blob ( ) const

inline

Definition at line 387 of file blobbox.h.

                                      {
       return base_char_blob_;
     }

int BLOBNBOX::base_char_bottom ( ) const

inline

Definition at line 371 of file blobbox.h.

                                  {
       return base_char_bottom_;
     }

int BLOBNBOX::base_char_top ( ) const

inline

Definition at line 368 of file blobbox.h.

                               {
       return base_char_top_;
     }

int BLOBNBOX::baseline_position ( ) const

inline

Definition at line 374 of file blobbox.h.

                                   {
       return baseline_y_;
     }

const TBOX& BLOBNBOX::bounding_box ( ) const

inline

Definition at line 215 of file blobbox.h.

                                      {
       return box;
     }

TBOX BLOBNBOX::BoundsWithinLimits	(	int	left,
		int	right
	)

Definition at line 326 of file blobbox.cpp.

                                                      {
   FCOORD no_rotation(1.0f, 0.0f);
   float top = box.top();
   float bottom = box.bottom();
   if (cblob_ptr != NULL) {
     find_cblob_limits(cblob_ptr, static_cast<float>(left),
                       static_cast<float>(right), no_rotation,
                       bottom, top);
   }
 
   if (top < bottom) {
     top = box.top();
     bottom = box.bottom();
   }
   FCOORD bot_left(left, bottom);
   FCOORD top_right(right, top);
   TBOX shrunken_box(bot_left);
   TBOX shrunken_box2(top_right);
   shrunken_box += shrunken_box2;
   return shrunken_box;
 }

ScrollView::Color BLOBNBOX::BoxColor ( ) const

Definition at line 474 of file blobbox.cpp.

                                          {
   return TextlineColor(region_type_, flow_);
 }

C_BLOB* BLOBNBOX::cblob ( ) const

inline

Definition at line 253 of file blobbox.h.

                           {
       return cblob_ptr;
     }

void BLOBNBOX::chop	(	BLOBNBOX_IT *	start_it,
		BLOBNBOX_IT *	blob_it,
		FCOORD	rotation,
		float	xheight
	)

Definition at line 113 of file blobbox.cpp.

                      {
   inT16 blobcount;               //no of blobs
   BLOBNBOX *newblob;             //fake blob
   BLOBNBOX *blob;                //current blob
   inT16 blobindex;               //number of chop
   inT16 leftx;                   //left edge of blob
   float blobwidth;               //width of each
   float rightx;                  //right edge to scan
   float ymin, ymax;              //limits of new blob
   float test_ymin, test_ymax;    //limits of part blob
   ICOORD bl, tr;                 //corners of box
   BLOBNBOX_IT blob_it;           //blob iterator
 
                                  //get no of chops
   blobcount = (inT16) floor (box.width () / xheight);
   if (blobcount > 1 && cblob_ptr != NULL) {
                                  //width of each
     blobwidth = (float) (box.width () + 1) / blobcount;
     for (blobindex = blobcount - 1, rightx = box.right ();
     blobindex >= 0; blobindex--, rightx -= blobwidth) {
       ymin = (float) MAX_INT32;
       ymax = (float) -MAX_INT32;
       blob_it = *start_it;
       do {
         blob = blob_it.data ();
         find_cblob_vlimits(blob->cblob_ptr, rightx - blobwidth,
                            rightx,
             /*rotation, */ test_ymin, test_ymax);
         blob_it.forward ();
         UpdateRange(test_ymin, test_ymax, &ymin, &ymax);
       }
       while (blob != end_it->data ());
       if (ymin < ymax) {
         leftx = (inT16) floor (rightx - blobwidth);
         if (leftx < box.left ())
           leftx = box.left ();   //clip to real box
         bl = ICOORD (leftx, (inT16) floor (ymin));
         tr = ICOORD ((inT16) ceil (rightx), (inT16) ceil (ymax));
         if (blobindex == 0)
           box = TBOX (bl, tr);    //change box
         else {
           newblob = new BLOBNBOX;
                                  //box is all it has
           newblob->box = TBOX (bl, tr);
                                  //stay on current
           newblob->base_char_top_ = tr.y();
           newblob->base_char_bottom_ = bl.y();
           end_it->add_after_stay_put (newblob);
         }
       }
     }
   }
 }

void BLOBNBOX::CleanNeighbours ( )

Definition at line 207 of file blobbox.cpp.

                                {
   for (int dir = 0; dir < BND_COUNT; ++dir) {
     BLOBNBOX* neighbour = neighbours_[dir];
     if (neighbour != NULL && neighbour->DeletableNoise()) {
       neighbours_[dir] = NULL;
       good_stroke_neighbours_[dir] = false;
     }
   }
 }

void BLOBNBOX::CleanNeighbours ( BLOBNBOX_LIST * blobs )

static

Definition at line 357 of file blobbox.cpp.

                                                    {
   BLOBNBOX_IT blob_it(blobs);
   for (blob_it.mark_cycle_pt(); !blob_it.cycled_list(); blob_it.forward()) {
     blob_it.data()->CleanNeighbours();
   }
 }

void BLOBNBOX::ClearNeighbours ( )

inline

Definition at line 494 of file blobbox.h.

                          {
     for (int n = 0; n < BND_COUNT; ++n) {
       neighbours_[n] = NULL;
       good_stroke_neighbours_[n] = false;
     }
   }

void BLOBNBOX::compute_bounding_box ( )

inline

Definition at line 225 of file blobbox.h.

                                 {
       box = cblob_ptr->bounding_box();
       base_char_top_ = box.top();
       base_char_bottom_ = box.bottom();
       baseline_y_ = box.bottom();
     }

void BLOBNBOX::ComputeEdgeOffsets	(	Pix *	thresholds,
		Pix *	grey,
		BLOBNBOX_LIST *	blobs
	)

static

Definition at line 378 of file blobbox.cpp.

                                                         {
   int grey_height = 0;
   int thr_height = 0;
   int scale_factor = 1;
   if (thresholds != NULL && grey != NULL) {
     grey_height = pixGetHeight(grey);
     thr_height = pixGetHeight(thresholds);
     scale_factor =
         IntCastRounded(static_cast<double>(grey_height) / thr_height);
   }
   BLOBNBOX_IT blob_it(blobs);
   for (blob_it.mark_cycle_pt(); !blob_it.cycled_list(); blob_it.forward()) {
     BLOBNBOX* blob = blob_it.data();
     if (blob->cblob() != NULL) {
       // Get the threshold that applies to this blob.
       l_uint32 threshold = 128;
       if (thresholds != NULL && grey != NULL) {
         const TBOX& box = blob->cblob()->bounding_box();
         // Transform the coordinates if required.
         TPOINT pt((box.left() + box.right()) / 2,
                   (box.top() + box.bottom()) / 2);
         pixGetPixel(thresholds, pt.x / scale_factor,
                     thr_height - 1 - pt.y / scale_factor, &threshold);
       }
       blob->cblob()->ComputeEdgeOffsets(threshold, grey);
     }
   }
 }

bool BLOBNBOX::ConfirmNoTabViolation ( const BLOBNBOX & other ) const

Definition at line 285 of file blobbox.cpp.

                                                                 {
   if (box.left() < other.box.left() && box.left() < other.left_rule_)
     return false;
   if (other.box.left() < box.left() && other.box.left() < left_rule_)
     return false;
   if (box.right() > other.box.right() && box.right() > other.right_rule_)
     return false;
   if (other.box.right() > box.right() && other.box.right() > right_rule_)
     return false;
   return true;
 }

void BLOBNBOX::ConstructionInit ( )

inline

Definition at line 455 of file blobbox.h.

                           {
     cblob_ptr = NULL;
     owns_cblob_ = false;
     area = 0;
     area_stroke_width_ = 0.0f;
     horz_stroke_width_ = 0.0f;
     vert_stroke_width_ = 0.0f;
     ReInit();
   }

bool BLOBNBOX::DefiniteIndividualFlow ( )

Definition at line 245 of file blobbox.cpp.

                                       {
   if (cblob() == NULL) return false;
   int box_perimeter = 2 * (box.height() + box.width());
   if (box.width() > box.height() * kDefiniteAspectRatio) {
     // Attempt to distinguish a wide joined word from a dash.
     // If it is a dash, then its perimeter is approximately
     // 2 * (box width + stroke width), but more if the outline is noisy,
     // so perimeter - 2*(box width + stroke width) should be close to zero.
     // A complex shape such as a joined word should have a much larger value.
     int perimeter = cblob()->perimeter();
     if (vert_stroke_width() > 0 || perimeter <= 0)
       perimeter -= 2 * vert_stroke_width();
     else
       perimeter -= 4 * cblob()->area() / perimeter;
     perimeter -= 2 * box.width();
     // Use a multiple of the box perimeter as a threshold.
     if (perimeter > kComplexShapePerimeterRatio * box_perimeter) {
       set_vert_possible(false);
       set_horz_possible(true);
       return true;
     }
   }
   if (box.height() > box.width() * kDefiniteAspectRatio) {
     // As above, but for a putative vertical word vs a I/1/l.
     int perimeter = cblob()->perimeter();
     if (horz_stroke_width() > 0 || perimeter <= 0)
       perimeter -= 2 * horz_stroke_width();
     else
       perimeter -= 4 * cblob()->area() / perimeter;
     perimeter -= 2 * box.height();
     if (perimeter > kComplexShapePerimeterRatio * box_perimeter) {
       set_vert_possible(true);
       set_horz_possible(false);
       return true;
     }
   }
   return false;
 }

bool BLOBNBOX::DeletableNoise ( ) const

inline

Definition at line 188 of file blobbox.h.

                                 {
       return owner() == NULL && region_type() == BRT_NOISE;
     }

void BLOBNBOX::DeleteNoiseBlobs ( BLOBNBOX_LIST * blobs )

static

Definition at line 365 of file blobbox.cpp.

                                                     {
   BLOBNBOX_IT blob_it(blobs);
   for (blob_it.mark_cycle_pt(); !blob_it.cycled_list(); blob_it.forward()) {
     BLOBNBOX* blob = blob_it.data();
     if (blob->DeletableNoise()) {
       delete blob->cblob();
       delete blob_it.extract();
     }
   }
 }

inT32 BLOBNBOX::enclosed_area ( ) const

inline

Definition at line 238 of file blobbox.h.

                                 {
       return area;
     }

void BLOBNBOX::EstimateBaselinePosition ( )

Definition at line 350 of file blobbox.cpp.

                                         {
   baseline_y_ = box.bottom();  // The default.
   if (cblob_ptr == NULL) return;
   baseline_y_ = cblob_ptr->EstimateBaselinePosition();
 }

BlobTextFlowType BLOBNBOX::flow ( ) const

inline

Definition at line 280 of file blobbox.h.

                                   {
       return flow_;
     }

bool BLOBNBOX::good_stroke_neighbour ( BlobNeighbourDir n ) const

inline

Definition at line 358 of file blobbox.h.

                                                          {
       return good_stroke_neighbours_[n];
     }

int BLOBNBOX::GoodTextBlob ( ) const

Definition at line 219 of file blobbox.cpp.

                                  {
   int score = 0;
   for (int dir = 0; dir < BND_COUNT; ++dir) {
     BlobNeighbourDir bnd = static_cast<BlobNeighbourDir>(dir);
     if (good_stroke_neighbour(bnd))
       ++score;
   }
   return score;
 }

bool BLOBNBOX::horz_possible ( ) const

inline

Definition at line 292 of file blobbox.h.

                                {
       return horz_possible_;
     }

float BLOBNBOX::horz_stroke_width ( ) const

inline

Definition at line 322 of file blobbox.h.

                                     {
       return horz_stroke_width_;
     }

bool BLOBNBOX::IsDiacritic ( ) const

inline

Definition at line 365 of file blobbox.h.

                              {
       return base_char_top_ != box.top() || base_char_bottom_ != box.bottom();
     }

static bool BLOBNBOX::IsImageType ( BlobRegionType type )

inlinestatic

Definition at line 407 of file blobbox.h.

                                                  {
       return type == BRT_RECTIMAGE || type == BRT_POLYIMAGE;
     }

static bool BLOBNBOX::IsLineType ( BlobRegionType type )

inlinestatic

Definition at line 411 of file blobbox.h.

                                                 {
       return type == BRT_HLINE || type == BRT_VLINE;
     }

static bool BLOBNBOX::IsTextType ( BlobRegionType type )

inlinestatic

Definition at line 403 of file blobbox.h.

                                                 {
       return type == BRT_TEXT || type == BRT_VERT_TEXT;
     }

bool BLOBNBOX::joined_to_prev ( ) const

inline

Definition at line 241 of file blobbox.h.

                                 {
       return joined != 0;
     }

bool BLOBNBOX::leader_on_left ( ) const

inline

Definition at line 343 of file blobbox.h.

                                 {
       return leader_on_left_;
     }

bool BLOBNBOX::leader_on_right ( ) const

inline

Definition at line 349 of file blobbox.h.

                                  {
       return leader_on_right_;
     }

int BLOBNBOX::left_crossing_rule ( ) const

inline

Definition at line 310 of file blobbox.h.

                                    {
       return left_crossing_rule_;
     }

int BLOBNBOX::left_rule ( ) const

inline

Definition at line 298 of file blobbox.h.

                           {
       return left_rule_;
     }

TabType BLOBNBOX::left_tab_type ( ) const

inline

Definition at line 256 of file blobbox.h.

                                   {
       return left_tab_type_;
     }

int BLOBNBOX::line_crossings ( ) const

inline

Definition at line 377 of file blobbox.h.

                                {
       return line_crossings_;
     }

bool BLOBNBOX::MatchingStrokeWidth	(	const BLOBNBOX &	other,
		double	fractional_tolerance,
		double	constant_tolerance
	)		const

Definition at line 298 of file blobbox.cpp.

                                                                     {
   // The perimeter-based width is used as a backup in case there is
   // no information in the blob.
   double p_width = area_stroke_width();
   double n_p_width = other.area_stroke_width();
   float h_tolerance = horz_stroke_width_ * fractional_tolerance
                      + constant_tolerance;
   float v_tolerance = vert_stroke_width_ * fractional_tolerance
                      + constant_tolerance;
   double p_tolerance = p_width * fractional_tolerance
                      + constant_tolerance;
   bool h_zero = horz_stroke_width_ == 0.0f || other.horz_stroke_width_ == 0.0f;
   bool v_zero = vert_stroke_width_ == 0.0f || other.vert_stroke_width_ == 0.0f;
   bool h_ok = !h_zero && NearlyEqual(horz_stroke_width_,
                                      other.horz_stroke_width_, h_tolerance);
   bool v_ok = !v_zero && NearlyEqual(vert_stroke_width_,
                                      other.vert_stroke_width_, v_tolerance);
   bool p_ok = h_zero && v_zero && NearlyEqual(p_width, n_p_width, p_tolerance);
   // For a match, at least one of the horizontal and vertical widths
   // must match, and the other one must either match or be zero.
   // Only if both are zero will we look at the perimeter metric.
   return p_ok || ((v_ok || h_ok) && (h_ok || h_zero) && (v_ok || v_zero));
 }

void BLOBNBOX::merge ( BLOBNBOX * nextblob )

Definition at line 85 of file blobbox.cpp.

                       {
   box += nextblob->box;          //merge boxes
   set_diacritic_box(box);
   nextblob->joined = TRUE;
 }

void BLOBNBOX::MinMaxGapsClipped	(	int *	h_min,
		int *	h_max,
		int *	v_min,
		int *	v_max
	)		const

Definition at line 193 of file blobbox.cpp.

                                                                {
   int max_dimension = MAX(box.width(), box.height());
   int gaps[BND_COUNT];
   NeighbourGaps(gaps);
   *h_min = MIN(gaps[BND_LEFT], gaps[BND_RIGHT]);
   *h_max = MAX(gaps[BND_LEFT], gaps[BND_RIGHT]);
   if (*h_max > max_dimension && *h_min < max_dimension) *h_max = *h_min;
   *v_min = MIN(gaps[BND_ABOVE], gaps[BND_BELOW]);
   *v_max = MAX(gaps[BND_ABOVE], gaps[BND_BELOW]);
   if (*v_max > max_dimension && *v_min < max_dimension) *v_max = *v_min;
 }

BLOBNBOX* BLOBNBOX::neighbour ( BlobNeighbourDir n ) const

inline

Definition at line 355 of file blobbox.h.

                                                   {
       return neighbours_[n];
     }

void BLOBNBOX::NeighbourGaps ( int gaps[BND_COUNT] ) const

Definition at line 174 of file blobbox.cpp.

                                                       {
   for (int dir = 0; dir < BND_COUNT; ++dir) {
     gaps[dir] = MAX_INT16;
     BLOBNBOX* neighbour = neighbours_[dir];
     if (neighbour != NULL) {
       TBOX n_box = neighbour->bounding_box();
       if (dir == BND_LEFT || dir == BND_RIGHT) {
         gaps[dir] = box.x_gap(n_box);
       } else {
         gaps[dir] = box.y_gap(n_box);
       }
     }
   }
 }

int BLOBNBOX::NoisyNeighbours ( ) const

Definition at line 230 of file blobbox.cpp.

                                     {
   int count = 0;
   for (int dir = 0; dir < BND_COUNT; ++dir) {
     BlobNeighbourDir bnd = static_cast<BlobNeighbourDir>(dir);
     BLOBNBOX* blob = neighbour(bnd);
     if (blob != NULL && blob->region_type() == BRT_NOISE)
       ++count;
   }
   return count;
 }

tesseract::ColPartition* BLOBNBOX::owner ( ) const

inline

Definition at line 337 of file blobbox.h.

                                          {
       return owner_;
     }

void BLOBNBOX::plot	(	ScrollView *	window,
		ScrollView::Color	blob_colour,
		ScrollView::Color	child_colour
	)

Definition at line 478 of file blobbox.cpp.

                                                   {  // for holes
   if (cblob_ptr != NULL)
     cblob_ptr->plot(window, blob_colour, child_colour);
 }

void BLOBNBOX::PlotBlobs	(	BLOBNBOX_LIST *	list,
		ScrollView::Color	body_colour,
		ScrollView::Color	child_colour,
		ScrollView *	win
	)

static

Definition at line 412 of file blobbox.cpp.

                                           {
   BLOBNBOX_IT it(list);
   for (it.mark_cycle_pt(); !it.cycled_list(); it.forward()) {
     it.data()->plot(win, body_colour, child_colour);
   }
 }

void BLOBNBOX::PlotNoiseBlobs	(	BLOBNBOX_LIST *	list,
		ScrollView::Color	body_colour,
		ScrollView::Color	child_colour,
		ScrollView *	win
	)

static

Definition at line 425 of file blobbox.cpp.

                                                {
   BLOBNBOX_IT it(list);
   for (it.mark_cycle_pt(); !it.cycled_list(); it.forward()) {
     BLOBNBOX* blob = it.data();
     if (blob->DeletableNoise())
       blob->plot(win, body_colour, child_colour);
   }
 }

static BLOBNBOX* BLOBNBOX::RealBlob ( C_OUTLINE * outline )

inlinestatic

Definition at line 143 of file blobbox.h.

                                                   {
       C_BLOB* blob = new C_BLOB(outline);
       return new BLOBNBOX(blob);
     }

void BLOBNBOX::really_merge ( BLOBNBOX * other )

Definition at line 96 of file blobbox.cpp.

                                            {
   if (cblob_ptr != NULL && other->cblob_ptr != NULL) {
     C_OUTLINE_IT ol_it(cblob_ptr->out_list());
     ol_it.add_list_after(other->cblob_ptr->out_list());
   }
   compute_bounding_box();
 }

bool BLOBNBOX::red_box_set ( ) const

inline

Definition at line 244 of file blobbox.h.

                              {
       return reduced != 0;
     }

const TBOX& BLOBNBOX::reduced_box ( ) const

inline

Definition at line 231 of file blobbox.h.

                                     {
       return red_box;
     }

void BLOBNBOX::reflect_box_in_y_axis ( )

Definition at line 55 of file blobbox.cpp.

                                      {
   int left = -box.right();
   box.set_right(-box.left());
   box.set_left(left);
 }

BlobRegionType BLOBNBOX::region_type ( ) const

inline

Definition at line 268 of file blobbox.h.

                                        {
       return region_type_;
     }

void BLOBNBOX::ReInit ( )

inline

Definition at line 466 of file blobbox.h.

                 {
     joined = false;
     reduced = false;
     repeated_set_ = 0;
     left_tab_type_ = TT_NONE;
     right_tab_type_ = TT_NONE;
     region_type_ = BRT_UNKNOWN;
     flow_ = BTFT_NONE;
     spt_type_ = BSTT_SKIP;
     left_rule_ = 0;
     right_rule_ = 0;
     left_crossing_rule_ = 0;
     right_crossing_rule_ = 0;
     if (area_stroke_width_ == 0.0f && area > 0 && cblob() != NULL)
       area_stroke_width_ = 2.0f * area / cblob()->perimeter();
     owner_ = NULL;
     base_char_top_ = box.top();
     base_char_bottom_ = box.bottom();
     baseline_y_ = box.bottom();
     line_crossings_ = 0;
     base_char_blob_ = NULL;
     horz_possible_ = false;
     vert_possible_ = false;
     leader_on_left_ = false;
     leader_on_right_ = false;
     ClearNeighbours();
   }

int BLOBNBOX::repeated_set ( ) const

inline

Definition at line 247 of file blobbox.h.

                              {
       return repeated_set_;
     }

int BLOBNBOX::right_crossing_rule ( ) const

inline

Definition at line 316 of file blobbox.h.

                                     {
       return right_crossing_rule_;
     }

int BLOBNBOX::right_rule ( ) const

inline

Definition at line 304 of file blobbox.h.

                            {
       return right_rule_;
     }

TabType BLOBNBOX::right_tab_type ( ) const

inline

Definition at line 262 of file blobbox.h.

                                    {
       return right_tab_type_;
     }

void BLOBNBOX::rotate ( FCOORD rotation )

Definition at line 48 of file blobbox.cpp.

                                      {
   cblob_ptr->rotate(rotation);
   rotate_box(rotation);
   compute_bounding_box();
 }

void BLOBNBOX::rotate_box ( FCOORD rotation )

Definition at line 64 of file blobbox.cpp.

                                          {
   if (IsDiacritic()) {
     ASSERT_HOST(rotation.x() >= kCosSmallAngle)
     ICOORD top_pt((box.left() + box.right()) / 2, base_char_top_);
     ICOORD bottom_pt(top_pt.x(), base_char_bottom_);
     top_pt.rotate(rotation);
     base_char_top_ = top_pt.y();
     bottom_pt.rotate(rotation);
     base_char_bottom_ = bottom_pt.y();
     box.rotate(rotation);
   } else {
     box.rotate(rotation);
     set_diacritic_box(box);
   }
 }

void BLOBNBOX::set_base_char_blob ( BLOBNBOX * blob )

inline

Definition at line 390 of file blobbox.h.

                                             {
       base_char_blob_ = blob;
     }

void BLOBNBOX::set_bounding_box ( const TBOX & new_box )

inline

Definition at line 220 of file blobbox.h.

                                                {
       box = new_box;
       base_char_top_ = box.top();
       base_char_bottom_ = box.bottom();
     }

void BLOBNBOX::set_diacritic_box ( const TBOX & diacritic_box )

inline

Definition at line 383 of file blobbox.h.

                                                       {
       base_char_top_ = diacritic_box.top();
       base_char_bottom_ = diacritic_box.bottom();
     }

void BLOBNBOX::set_flow ( BlobTextFlowType value )

inline

Definition at line 283 of file blobbox.h.

                                           {
       flow_ = value;
     }

void BLOBNBOX::set_horz_possible ( bool value )

inline

Definition at line 295 of file blobbox.h.

                                        {
       horz_possible_ = value;
     }

void BLOBNBOX::set_horz_stroke_width ( float width )

inline

Definition at line 325 of file blobbox.h.

                                             {
       horz_stroke_width_ = width;
     }

void BLOBNBOX::set_leader_on_left ( bool flag )

inline

Definition at line 346 of file blobbox.h.

                                        {
       leader_on_left_ = flag;
     }

void BLOBNBOX::set_leader_on_right ( bool flag )

inline

Definition at line 352 of file blobbox.h.

                                         {
       leader_on_right_ = flag;
     }

void BLOBNBOX::set_left_crossing_rule ( int new_left )

inline

Definition at line 313 of file blobbox.h.

                                               {
       left_crossing_rule_ = new_left;
     }

void BLOBNBOX::set_left_rule ( int new_left )

inline

Definition at line 301 of file blobbox.h.

                                      {
       left_rule_ = new_left;
     }

void BLOBNBOX::set_left_tab_type ( TabType new_type )

inline

Definition at line 259 of file blobbox.h.

                                              {
       left_tab_type_ = new_type;
     }

void BLOBNBOX::set_line_crossings ( int value )

inline

Definition at line 380 of file blobbox.h.

                                        {
       line_crossings_ = value;
     }

void BLOBNBOX::set_neighbour	(	BlobNeighbourDir	n,
		BLOBNBOX *	neighbour,
		bool	good
	)

inline

Definition at line 361 of file blobbox.h.

                                                                            {
       neighbours_[n] = neighbour;
       good_stroke_neighbours_[n] = good;
     }

void BLOBNBOX::set_owner ( tesseract::ColPartition * new_owner )

inline

Definition at line 340 of file blobbox.h.

                                                      {
       owner_ = new_owner;
     }

void BLOBNBOX::set_owns_cblob ( bool value )

inline

Definition at line 393 of file blobbox.h.

393 { owns_cblob_ = value; }

void BLOBNBOX::set_reduced_box ( TBOX new_box )

inline

Definition at line 234 of file blobbox.h.

                                        {
       red_box = new_box;
       reduced = TRUE;
     }

void BLOBNBOX::set_region_type ( BlobRegionType new_type )

inline

Definition at line 271 of file blobbox.h.

                                                   {
       region_type_ = new_type;
     }

void BLOBNBOX::set_repeated_set ( int set_id )

inline

Definition at line 250 of file blobbox.h.

                                       {
       repeated_set_ = set_id;
     }

void BLOBNBOX::set_right_crossing_rule ( int new_right )

inline

Definition at line 319 of file blobbox.h.

                                                 {
       right_crossing_rule_ = new_right;
     }

void BLOBNBOX::set_right_rule ( int new_right )

inline

Definition at line 307 of file blobbox.h.

                                        {
       right_rule_ = new_right;
     }

void BLOBNBOX::set_right_tab_type ( TabType new_type )

inline

Definition at line 265 of file blobbox.h.

                                               {
       right_tab_type_ = new_type;
     }

void BLOBNBOX::set_special_text_type ( BlobSpecialTextType new_type )

inline

Definition at line 277 of file blobbox.h.

                                                              {
       spt_type_ = new_type;
     }

void BLOBNBOX::set_vert_possible ( bool value )

inline

Definition at line 289 of file blobbox.h.

                                        {
       vert_possible_ = value;
     }

void BLOBNBOX::set_vert_stroke_width ( float width )

inline

Definition at line 331 of file blobbox.h.

                                             {
       vert_stroke_width_ = width;
     }

BlobSpecialTextType BLOBNBOX::special_text_type ( ) const

inline

Definition at line 274 of file blobbox.h.

                                                   {
       return spt_type_;
     }

ScrollView::Color BLOBNBOX::TextlineColor	(	BlobRegionType	region_type,
		BlobTextFlowType	flow_type
	)

static

Definition at line 437 of file blobbox.cpp.

                                                                       {
   switch (region_type) {
     case BRT_HLINE:
       return ScrollView::BROWN;
     case BRT_VLINE:
       return ScrollView::DARK_GREEN;
     case BRT_RECTIMAGE:
       return ScrollView::RED;
     case BRT_POLYIMAGE:
       return ScrollView::ORANGE;
     case BRT_UNKNOWN:
       return flow_type == BTFT_NONTEXT ? ScrollView::CYAN : ScrollView::WHITE;
     case BRT_VERT_TEXT:
       if (flow_type == BTFT_STRONG_CHAIN || flow_type == BTFT_TEXT_ON_IMAGE)
         return ScrollView::GREEN;
       if (flow_type == BTFT_CHAIN)
         return ScrollView::LIME_GREEN;
       return ScrollView::YELLOW;
     case BRT_TEXT:
       if (flow_type == BTFT_STRONG_CHAIN)
         return ScrollView::BLUE;
       if (flow_type == BTFT_TEXT_ON_IMAGE)
         return ScrollView::LIGHT_BLUE;
       if (flow_type == BTFT_CHAIN)
         return ScrollView::MEDIUM_BLUE;
       if (flow_type == BTFT_LEADER)
         return ScrollView::WHEAT;
       if (flow_type == BTFT_NONTEXT)
         return ScrollView::PINK;
       return ScrollView::MAGENTA;
     default:
       return ScrollView::GREY;
   }
 }

void BLOBNBOX::translate_box ( ICOORD v )

inline

Definition at line 159 of file blobbox.h.

                                  {
       if (IsDiacritic()) {
         box.move(v);
         base_char_top_ += v.y();
         base_char_bottom_ += v.y();
       } else {
         box.move(v);
         set_diacritic_box(box);
       }
     }

bool BLOBNBOX::UniquelyHorizontal ( ) const

inline

Definition at line 398 of file blobbox.h.

                                     {
       return horz_possible_ && !vert_possible_;
     }

bool BLOBNBOX::UniquelyVertical ( ) const

inline

Definition at line 395 of file blobbox.h.

                                   {
       return vert_possible_ && !horz_possible_;
     }

static bool BLOBNBOX::UnMergeableType ( BlobRegionType type )

inlinestatic

Definition at line 415 of file blobbox.h.

                                                      {
       return IsLineType(type) || IsImageType(type);
     }

bool BLOBNBOX::vert_possible ( ) const

inline

Definition at line 286 of file blobbox.h.

                                {
       return vert_possible_;
     }

float BLOBNBOX::vert_stroke_width ( ) const

inline

Definition at line 328 of file blobbox.h.

                                     {
       return vert_stroke_width_;
     }

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

ccstruct/blobbox.h
ccstruct/blobbox.cpp

Public Member Functions

Static Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation