Detailed Description

file writer for portable pixmap file format (PPM), open with common graphic viewer programs (e.g. xview)

Author: Michael Winkler

Definition in file reader_ppm.c.

#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include "scip/reader_ppm.h"
#include "scip/cons_knapsack.h"
#include "scip/cons_linear.h"
#include "scip/cons_logicor.h"
#include "scip/cons_setppc.h"
#include "scip/cons_varbound.h"
#include "scip/pub_misc.h"

Go to the source code of this file.

Macros
#define	READER_NAME "ppmreader"

#define	READER_DESC "file writer for portable pixmap file format (PPM), open with common graphic viewer programs (e.g. xview)"

#define	READER_EXTENSION "ppm"

#define	PPM_MAX_LINELEN 71

#define	DEFAULT_PPM_RGB_LIMIT 160

#define	DEFAULT_PPM_COEF_LIMIT 3

#define	DEFAULT_PPM_RGB_RELATIVE TRUE

#define	DEFAULT_PPM_RGB_ASCII TRUE

Functions
static void	initReaderdata (SCIP_READERDATA *readerdata)

static SCIP_RETCODE	getActiveVariables (SCIP scip, SCIP_VAR vars, SCIP_Real scalars, int nvars, SCIP_Real constant, SCIP_Bool transformed)

static void	clearLine (char linebuffer, int linecnt)

static void	endLine (SCIP scip, FILE file, SCIP_READERDATA readerdata, char linebuffer, int *linecnt)

static void	appendLine (SCIP scip, FILE file, SCIP_READERDATA readerdata, char linebuffer, int linecnt, const char extension)

static void	calcColorValue (SCIP scip, SCIP_READERDATA readerdata, SCIP_Real coef, int red, int green, int *blue, SCIP_Real scale)

static void	printRow (SCIP scip, FILE file, SCIP_READERDATA readerdata, SCIP_VAR vars, SCIP_Real vals, int nvars, int ntotalvars, SCIP_Real maxcoef)

static SCIP_RETCODE	printLinearCons (SCIP scip, FILE file, SCIP_READERDATA readerdata, SCIP_VAR vars, SCIP_Real vals, int nvars, int ncompletevars, SCIP_Bool transformed, SCIP_Real *maxcoef, SCIP_Bool printbool)

static	SCIP_DECL_READERCOPY (readerCopyPpm)

static	SCIP_DECL_READERFREE (readerFreePpm)

static	SCIP_DECL_READERWRITE (readerWritePpm)

SCIP_RETCODE	SCIPincludeReaderPpm (SCIP *scip)

SCIP_RETCODE	SCIPwritePpm (SCIP scip, FILE file, const char name, SCIP_READERDATA readerdata, SCIP_Bool transformed, SCIP_VAR vars, int nvars, SCIP_CONS conss, int nconss, SCIP_RESULT *result)

Macro Definition Documentation

#define READER_NAME "ppmreader"

Definition at line 36 of file reader_ppm.c.

Referenced by SCIP_DECL_READERCOPY(), SCIP_DECL_READERFREE(), SCIP_DECL_READERWRITE(), and SCIPincludeReaderPpm().

#define READER_DESC "file writer for portable pixmap file format (PPM), open with common graphic viewer programs (e.g. xview)"

Definition at line 37 of file reader_ppm.c.

Referenced by SCIPincludeReaderPpm().

#define READER_EXTENSION "ppm"

Definition at line 38 of file reader_ppm.c.

Referenced by SCIPincludeReaderPpm().

#define PPM_MAX_LINELEN 71

the maximum length of any line is 70 + '\0' = 71

Definition at line 43 of file reader_ppm.c.

Referenced by appendLine(), printRow(), and SCIPwritePpm().

#define DEFAULT_PPM_RGB_LIMIT 160

Definition at line 44 of file reader_ppm.c.

Referenced by initReaderdata(), and SCIPincludeReaderPpm().

#define DEFAULT_PPM_COEF_LIMIT 3

Definition at line 45 of file reader_ppm.c.

Referenced by initReaderdata(), and SCIPincludeReaderPpm().

#define DEFAULT_PPM_RGB_RELATIVE TRUE

Definition at line 46 of file reader_ppm.c.

Referenced by initReaderdata(), and SCIPincludeReaderPpm().

#define DEFAULT_PPM_RGB_ASCII TRUE

Definition at line 47 of file reader_ppm.c.

Referenced by initReaderdata(), and SCIPincludeReaderPpm().

Function Documentation

static void initReaderdata ( SCIP_READERDATA * readerdata )

static

initializes the reader data

Parameters

readerdata reader data

Definition at line 64 of file reader_ppm.c.

References DEFAULT_PPM_COEF_LIMIT, DEFAULT_PPM_RGB_ASCII, DEFAULT_PPM_RGB_LIMIT, DEFAULT_PPM_RGB_RELATIVE, and NULL.

Referenced by SCIPincludeReaderPpm().

static SCIP_RETCODE getActiveVariables	(	SCIP *	scip,
		SCIP_VAR **	vars,
		SCIP_Real *	scalars,
		int *	nvars,
		SCIP_Real *	constant,
		SCIP_Bool	transformed
	)

static

transforms given variables, scalars, and constant to the corresponding active variables, scalars, and constant

Parameters

scip	SCIP data structure
vars	vars array to get active variables for
scalars	scalars a_1, ..., a_n inrc/scip/reader_ppm.c linear sum a_1x_1 + ... + a_nx_n + c
nvars	pointer to number of variables and values in vars and vals array
constant	pointer to constant c in linear sum a_1x_1 + ... + a_nx_n + c
transformed	transformed constraint?

Definition at line 79 of file reader_ppm.c.

References NULL, SCIP_CALL, SCIP_OKAY, SCIPgetProbvarLinearSum(), SCIPreallocBufferArray, SCIPvarGetOrigvarSum(), and TRUE.

Referenced by printLinearCons().

static void clearLine	(	char *	linebuffer,
		int *	linecnt
	)

static

clears the given line buffer

Parameters

linebuffer	line
linecnt	number of characters in line

Definition at line 122 of file reader_ppm.c.

References NULL.

Referenced by endLine(), printRow(), and SCIPwritePpm().

static void endLine	(	SCIP *	scip,
		FILE *	file,
		SCIP_READERDATA *	readerdata,
		char *	linebuffer,
		int *	linecnt
	)

static

ends the given line with '\0' and prints it to the given file stream

Parameters

scip	SCIP data structure
file	output file (or NULL for standard output)
readerdata	information for reader
linebuffer	line
linecnt	number of characters in line

Definition at line 136 of file reader_ppm.c.

References clearLine(), NULL, and SCIPinfoMessage().

Referenced by appendLine(), and printRow().

static void appendLine	(	SCIP *	scip,
		FILE *	file,
		SCIP_READERDATA *	readerdata,
		char *	linebuffer,
		int *	linecnt,
		const char *	extension
	)

static

appends extension to line and prints it to the give file stream if the line exceeded PPM_PRINTLEN

Parameters

scip	SCIP data structure
file	output file (or NULL for standard output)
readerdata	information for reader
linebuffer	line
linecnt	number of characters in line
extension	string to extent the line

Definition at line 163 of file reader_ppm.c.

References endLine(), NULL, and PPM_MAX_LINELEN.

Referenced by printRow().

static void calcColorValue	(	SCIP *	scip,
		SCIP_READERDATA *	readerdata,
		SCIP_Real	coef,
		int *	red,
		int *	green,
		int *	blue,
		SCIP_Real	scale
	)

static

calculates the color value for a given coefficient

Parameters

scip	SCIP data structure
readerdata	information for reader
coef	Coefficient to scale
red	red part
green	green part
blue	blue part
scale	maximal coefficient

Definition at line 188 of file reader_ppm.c.

References NULL, SCIP_Real, and SCIPfloor().

Referenced by printRow().

static void printRow	(	SCIP *	scip,
		FILE *	file,
		SCIP_READERDATA *	readerdata,
		SCIP_VAR **	vars,
		SCIP_Real *	vals,
		int	nvars,
		int	ntotalvars,
		SCIP_Real	maxcoef
	)

static

print row in PPM format to file stream

Parameters

scip	SCIP data structure
file	output file (or NULL for standard output)
readerdata	information for reader
vars	array of constraint variables
vals	array of constraint values
nvars	number of constraint variables
ntotalvars	number of variables
maxcoef	maximal coefficient

Definition at line 250 of file reader_ppm.c.

References appendLine(), calcColorValue(), clearLine(), endLine(), NULL, PPM_MAX_LINELEN, REALABS, SCIPsnprintf(), and SCIPvarGetProbindex().

Referenced by printLinearCons().

static SCIP_RETCODE printLinearCons	(	SCIP *	scip,
		FILE *	file,
		SCIP_READERDATA *	readerdata,
		SCIP_VAR **	vars,
		SCIP_Real *	vals,
		int	nvars,
		int	ncompletevars,
		SCIP_Bool	transformed,
		SCIP_Real *	maxcoef,
		SCIP_Bool	printbool
	)

static

prints given linear constraint information in PPM format to file stream

Parameters

scip	SCIP data structure
file	output file (or NULL for standard output)
readerdata	information for reader
vars	array of variables
vals	array of coefficients values (or NULL if all coefficient values are 1)
nvars	number of variables
ncompletevars	number of variables in whole problem
transformed	transformed constraint?
maxcoef	maximal coefficient
printbool	print row or calculate maximum coefficient

Definition at line 354 of file reader_ppm.c.

References getActiveVariables(), NULL, printRow(), REALABS, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPallocBufferArray, SCIPduplicateBufferArray, and SCIPfreeBufferArray.

Referenced by SCIPwritePpm().

static SCIP_DECL_READERCOPY ( readerCopyPpm )

static

copy method for reader plugins (called when SCIP copies plugins)

Definition at line 431 of file reader_ppm.c.

References NULL, READER_NAME, SCIP_CALL, SCIP_OKAY, SCIPincludeReaderPpm(), and SCIPreaderGetName().

static SCIP_DECL_READERFREE ( readerFreePpm )

static

destructor of reader to free user data (called when SCIP is exiting)

Definition at line 445 of file reader_ppm.c.

References NULL, READER_NAME, SCIP_OKAY, SCIPfreeMemory, SCIPreaderGetData(), and SCIPreaderGetName().

static SCIP_DECL_READERWRITE ( readerWritePpm )

static

problem writing method of reader

Definition at line 460 of file reader_ppm.c.

References NULL, READER_NAME, SCIP_CALL, SCIP_OKAY, SCIPreaderGetData(), SCIPreaderGetName(), and SCIPwritePpm().

SCIP_RETCODE SCIPincludeReaderPpm ( SCIP * scip )

includes the ppm file reader in SCIP

Parameters

scip	SCIP data structure

Definition at line 479 of file reader_ppm.c.

References DEFAULT_PPM_COEF_LIMIT, DEFAULT_PPM_RGB_ASCII, DEFAULT_PPM_RGB_LIMIT, DEFAULT_PPM_RGB_RELATIVE, FALSE, initReaderdata(), NULL, READER_DESC, READER_EXTENSION, READER_NAME, SCIP_CALL, SCIP_OKAY, SCIPaddBoolParam(), SCIPaddIntParam(), SCIPallocMemory, SCIPincludeReaderBasic(), SCIPsetReaderCopy(), SCIPsetReaderFree(), and SCIPsetReaderWrite().

Referenced by SCIP_DECL_READERCOPY(), and SCIPincludeDefaultPlugins().

SCIP_RETCODE SCIPwritePpm	(	SCIP *	scip,
		FILE *	file,
		const char *	name,
		SCIP_READERDATA *	readerdata,
		SCIP_Bool	transformed,
		SCIP_VAR **	vars,
		int	nvars,
		SCIP_CONS **	conss,
		int	nconss,
		SCIP_RESULT *	result
	)

writes problem to file

Parameters

scip	SCIP data structure
file	output file, or NULL if standard output should be used
name	problem name
readerdata	information for reader
transformed	TRUE iff problem is the transformed problem
vars	array with active variables ordered binary, integer, implicit, continuous
nvars	number of active variables in the problem
conss	array with constraints of the problem
nconss	number of constraints in the problem
result	pointer to store the result of the file writing call

Definition at line 521 of file reader_ppm.c.

References clearLine(), FALSE, NULL, PPM_MAX_LINELEN, printLinearCons(), SCIP_Bool, SCIP_CALL, SCIP_Longint, SCIP_OKAY, SCIP_Real, SCIP_SUCCESS, SCIPallocBufferArray, SCIPconsGetHdlr(), SCIPconshdlrGetName(), SCIPconsIsEnabled(), SCIPconsIsTransformed(), SCIPdebugPrintf, SCIPfreeBufferArray, SCIPgetNVarsKnapsack(), SCIPgetNVarsLinear(), SCIPgetNVarsLogicor(), SCIPgetNVarsSetppc(), SCIPgetValsLinear(), SCIPgetVarsKnapsack(), SCIPgetVarsLinear(), SCIPgetVarsLogicor(), SCIPgetVarsSetppc(), SCIPgetVarVarbound(), SCIPgetVbdcoefVarbound(), SCIPgetVbdvarVarbound(), SCIPgetWeightsKnapsack(), SCIPinfoMessage(), SCIPprintCons(), SCIPwarningMessage(), and TRUE.

Referenced by SCIP_DECL_READERWRITE().

SCIP

Detailed Description

Macros

Functions

Macro Definition Documentation

Function Documentation