Tesseract  3.02
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tesseract::CharAltList Class Reference

#include <char_altlist.h>

Inheritance diagram for tesseract::CharAltList:
tesseract::AltList

List of all members.

Public Member Functions

 CharAltList (const CharSet *char_set, int max_alt=kMaxCharAlt)
 ~CharAltList ()
void Sort ()
bool Insert (int class_id, int cost, void *tag=NULL)
int ClassCost (int class_id) const
int Alt (int alt_idx) const
void SetAltCost (int alt_idx, int cost)
- Public Member Functions inherited from tesseract::AltList
 AltList (int max_alt)
virtual ~AltList ()
int BestCost (int *best_alt) const
int AltCount () const
int AltCost (int alt_idx) const
double AltProb (int alt_idx) const
void * AltTag (int alt_idx) const

Additional Inherited Members

- Protected Attributes inherited from tesseract::AltList
int max_alt_
int alt_cnt_
int * alt_cost_
void ** alt_tag_

Detailed Description

Definition at line 32 of file char_altlist.h.


Constructor & Destructor Documentation

tesseract::CharAltList::CharAltList ( const CharSet char_set,
int  max_alt = kMaxCharAlt 
)

Definition at line 26 of file char_altlist.cpp.

: AltList(max_alt) {
char_set_ = char_set;
max_alt_ = max_alt;
class_id_alt_ = NULL;
class_id_cost_ = NULL;
}
tesseract::CharAltList::~CharAltList ( )

Definition at line 34 of file char_altlist.cpp.

{
if (class_id_alt_ != NULL) {
delete []class_id_alt_;
class_id_alt_ = NULL;
}
if (class_id_cost_ != NULL) {
delete []class_id_cost_;
class_id_cost_ = NULL;
}
}

Member Function Documentation

int tesseract::CharAltList::Alt ( int  alt_idx) const
inline

Definition at line 51 of file char_altlist.h.

{ return class_id_alt_[alt_idx]; }
int tesseract::CharAltList::ClassCost ( int  class_id) const
inline

Definition at line 42 of file char_altlist.h.

{
if (class_id_cost_ == NULL ||
class_id < 0 ||
class_id >= char_set_->ClassCount()) {
return WORST_COST;
}
return class_id_cost_[class_id];
}
bool tesseract::CharAltList::Insert ( int  class_id,
int  cost,
void *  tag = NULL 
)

Definition at line 47 of file char_altlist.cpp.

{
// validate class ID
if (class_id < 0 || class_id >= char_set_->ClassCount()) {
return false;
}
// allocate buffers if nedded
if (class_id_alt_ == NULL || alt_cost_ == NULL) {
class_id_alt_ = new int[max_alt_];
alt_cost_ = new int[max_alt_];
alt_tag_ = new void *[max_alt_];
if (class_id_alt_ == NULL || alt_cost_ == NULL || alt_tag_ == NULL) {
return false;
}
memset(alt_tag_, 0, max_alt_ * sizeof(*alt_tag_));
}
if (class_id_cost_ == NULL) {
int class_cnt = char_set_->ClassCount();
class_id_cost_ = new int[class_cnt];
if (class_id_cost_ == NULL) {
return false;
}
for (int ich = 0; ich < class_cnt; ich++) {
class_id_cost_[ich] = WORST_COST;
}
}
if (class_id < 0 || class_id >= char_set_->ClassCount()) {
return false;
}
// insert the alternate
class_id_alt_[alt_cnt_] = class_id;
class_id_cost_[class_id] = cost;
return true;
}
void tesseract::CharAltList::SetAltCost ( int  alt_idx,
int  cost 
)
inline

Definition at line 53 of file char_altlist.h.

{
alt_cost_[alt_idx] = cost;
class_id_cost_[class_id_alt_[alt_idx]] = cost;
}
void tesseract::CharAltList::Sort ( )
virtual

Implements tesseract::AltList.

Definition at line 96 of file char_altlist.cpp.

{
for (int alt_idx = 0; alt_idx < alt_cnt_; alt_idx++) {
for (int alt = alt_idx + 1; alt < alt_cnt_; alt++) {
if (alt_cost_[alt_idx] > alt_cost_[alt]) {
int temp = class_id_alt_[alt_idx];
class_id_alt_[alt_idx] = class_id_alt_[alt];
class_id_alt_[alt] = temp;
temp = alt_cost_[alt_idx];
alt_cost_[alt_idx] = alt_cost_[alt];
alt_cost_[alt] = temp;
void *tag = alt_tag_[alt_idx];
alt_tag_[alt_idx] = alt_tag_[alt];
alt_tag_[alt] = tag;
}
}
}
}

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