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git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@317 d0cd1f9f-072b-0410-8dd7-cf729c803f20
93 lines
3.1 KiB
C
93 lines
3.1 KiB
C
/* -*-C-*-
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********************************************************************************
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*
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* File: matrix.h (Formerly matrix.h)
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* Description: Ratings matrix code. (Used by associator)
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* Author: Mark Seaman, OCR Technology
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* Created: Wed May 16 13:22:06 1990
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* Modified: Tue Mar 19 16:00:20 1991 (Mark Seaman) marks@hpgrlt
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* Language: C
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* Package: N/A
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* Status: Experimental (Do Not Distribute)
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*
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* (c) Copyright 1990, Hewlett-Packard Company.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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*********************************************************************************/
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#ifndef MATRIX_H
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#define MATRIX_H
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#include "ratngs.h"
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#include "unicharset.h"
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static BLOB_CHOICE_LIST* NOT_CLASSIFIED = NULL;
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// A generic class to store a matrix with entries of type T.
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template <class T>
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class GENERIC_MATRIX {
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public:
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// Allocate a piece of memory to hold a matrix of the given dimension.
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// Initialize all the elements of the matrix to empty instead of assuming
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// that a default constructor can be used.
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GENERIC_MATRIX(int dimension, const T& empty) : empty_(empty) {
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matrix_ = new T[dimension * dimension];
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dimension_ = dimension;
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for (int x = 0; x < dimension; x++)
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for (int y = 0; y < dimension; y++)
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this->put(x, y, empty_);
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}
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~GENERIC_MATRIX() { delete[] matrix_; }
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// Provide the dimension of this square matrix.
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long dimension() const { return dimension_; }
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// Expression to select a specific location in the matrix.
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int index(int column, int row) const {
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return (row * this->dimension() + column);
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}
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// Put a list element into the matrix at a specific location.
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void put(int column, int row, const T& thing) {
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matrix_[this->index(column, row)] = thing;
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}
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// Get the item at a specified location from the matrix.
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T get(int column, int row) const {
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return matrix_[this->index(column, row)];
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}
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// Delete objects pointed to by matrix_[i].
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void delete_matrix_pointers() {
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for (int x = 0; x < this->dimension(); x++) {
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for (int y = 0; y < this->dimension(); y++) {
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T matrix_cell = this->get(x, y);
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if (matrix_cell != empty_)
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delete matrix_cell;
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}
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}
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}
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private:
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T *matrix_;
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T empty_; // The unused cell.
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int dimension_;
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};
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class MATRIX : public GENERIC_MATRIX<BLOB_CHOICE_LIST *> {
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public:
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MATRIX(int dimension) : GENERIC_MATRIX<BLOB_CHOICE_LIST *>(dimension,
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NOT_CLASSIFIED) {}
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// Print a shortened version of the contents of the matrix.
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void print(const UNICHARSET ¤t_unicharset);
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};
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#endif
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