tesseract/ccstruct/quspline.h
Stefan Weil 023e1b340e Use POSIX data types and macros (#878)
* api: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* ccmain: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* ccstruct: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* classify: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* cutil: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* dict: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* textord: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* training: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* wordrec: Replace Tesseract data types by POSIX data types

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* ccutil: Replace Tesseract data types by POSIX data types

Now all Tesseract data types which are no longer needed can be removed
from ccutil/host.h.

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* ccmain: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* ccstruct: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* classify: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* dict: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* lstm: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* textord: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* wordrec: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* ccutil: Replace Tesseract's MIN_*INT, MAX_*INT* by POSIX *INT*_MIN, *INT*_MAX

Remove the macros which are now unused from ccutil/host.h.
Remove also the obsolete history comments.

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* Fix build error caused by ambiguous ClipToRange

Error message vom Appveyor CI:

    C:\projects\tesseract\ccstruct\coutln.cpp(818): error C2672: 'ClipToRange': no matching overloaded function found [C:\projects\tesseract\build\libtesseract.vcxproj]
    C:\projects\tesseract\ccstruct\coutln.cpp(818): error C2782: 'T ClipToRange(const T &,const T &,const T &)': template parameter 'T' is ambiguous [C:\projects\tesseract\build\libtesseract.vcxproj]
      c:\projects\tesseract\ccutil\helpers.h(122): note: see declaration of 'ClipToRange'
      C:\projects\tesseract\ccstruct\coutln.cpp(818): note: could be 'char'
      C:\projects\tesseract\ccstruct\coutln.cpp(818): note: or       'int'

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* unittest: Replace Tesseract's MAX_INT8 by POSIX INT8_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>

* arch: Replace Tesseract's MAX_INT8 by POSIX INT8_MAX

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-03-13 21:36:30 +01:00

100 lines
3.6 KiB
C++

/**********************************************************************
* File: quspline.h (Formerly qspline.h)
* Description: Code for the QSPLINE class.
* Author: Ray Smith
* Created: Tue Oct 08 17:16:12 BST 1991
*
* (C) Copyright 1991, Hewlett-Packard Ltd.
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
** http://www.apache.org/licenses/LICENSE-2.0
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*
**********************************************************************/
#ifndef QUSPLINE_H
#define QUSPLINE_H
#include "quadratc.h"
#include "serialis.h"
#include "memry.h"
#include "rect.h"
class ROW;
struct Pix;
class QSPLINE
{
friend void make_first_baseline(TBOX *,
int,
int *,
int *,
QSPLINE *,
QSPLINE *,
float);
friend void make_holed_baseline(TBOX *, int, QSPLINE *, QSPLINE *, float);
friend void tweak_row_baseline(ROW *, double, double);
public:
QSPLINE() { //empty constructor
segments = 0;
xcoords = NULL; //everything empty
quadratics = NULL;
}
QSPLINE( //copy constructor
const QSPLINE &src);
QSPLINE( //constructor
int32_t count, //number of segments
int32_t *xstarts, //segment starts
double *coeffs); //coefficients
~QSPLINE (); //destructor
QSPLINE ( //least squares fit
int xstarts[], //spline boundaries
int segcount, //no of segments
int xcoords[], //points to fit
int ycoords[], int blobcount,//no of coords
int degree); //function
double step( //step change
double x1, //between coords
double x2);
double y( //evaluate
double x) const; //at x
void move( // reposition spline
ICOORD vec); // by vector
BOOL8 overlap( //test overlap
QSPLINE *spline2, //2 cannot be smaller
double fraction); //by more than this
void extrapolate( //linear extrapolation
double gradient, //gradient to use
int left, //new left edge
int right); //new right edge
#ifndef GRAPHICS_DISABLED
void plot( //draw it
ScrollView* window, //in window
ScrollView::Color colour) const; //in colour
#endif
// Paint the baseline over pix. If pix has depth of 32, then the line will
// be painted in red. Otherwise it will be painted in black.
void plot(Pix* pix) const;
QSPLINE & operator= (
const QSPLINE & source); //from this
private:
int32_t spline_index( //binary search
double x) const; //for x
int32_t segments; //no of segments
int32_t *xcoords; //no of coords
QUAD_COEFFS *quadratics; //spline pieces
};
#endif