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printing the graph in a output file using c  language

Posted on 2009-05-07
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Last Modified: 2012-05-06
Need solution for printing a graph in a output file either txt or another file using c language
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Question by:mindboom
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by:Infinity08
ID: 24325341
What kind of graph ?
For what purpose ?
Which part is it that you have trouble with ?
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Author Comment

by:mindboom
ID: 24333088
i am able to get the output in command prompt... i need tat to be displayed on a text file... i am facing problem with it... can anyone give a suggestion along with a sample code how to print the graph on a text file...
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Author Comment

by:mindboom
ID: 24333171
graph for finding the mainchain of a atom... in pixel format.... getting problem to displaying in txt format
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Expert Comment

by:Infinity08
ID: 24333425
>> i am able to get the output in command prompt... i need tat to be displayed on a text file...

Then the easiest solution is to re-direct the standard output to a file, by starting the program like this :

        ./program your_arguments > textfile.txt

The standard output will now no longer be written to the screen, but to the given textfile.txt.


You can obviously modify your code to write to a file rather than standard output. You'd have to use fopen and fclose to open and close a file resp. And you can replace all your printf calls with fprintf calls to write to the opened file.

        http://cplusplus.com/reference/clibrary/cstdio/fopen/
        http://cplusplus.com/reference/clibrary/cstdio/fclose/
        http://cplusplus.com/reference/clibrary/cstdio/fprintf/
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Author Comment

by:mindboom
ID: 24333785
i need a sample code format... i used fprintf...but it seems not working oor me to print the pixel in the text file....
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Expert Comment

by:Infinity08
ID: 24334072
What do you mean by "print the pixel" ? Weren't you talking about a text file ?

Can you show your code ?
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Author Comment

by:mindboom
ID: 24334283
sure... i will show u the code... i need to print the total output of the graph with all the pixel  in  a text file.
#include<stdio.h>

#include<stdlib.h>

#include"graphics.h"

#include<math.h>

#include<conio.h>

#include<stdlib.h>
 

#define TRUE 1

#define FALSE 0
 

char x_axis1[10], y_axis1[10];
 

char characterSet[2][1];
 

float a[2][1];
 

struct DataStructure

{

char value[3];

char alpha[3];

char floatingNumber1[7];

char floatingNumber2[10];

char floatingNumber3[10];

char characters[7];

}DataStruct;
 

void LeftTrim(char string[], char axis[])

{

	int i, j=0;

	int foundSpaceBeforeValue=0, foundValue=FALSE;

	for (i = 0; i<strlen(string); i++)

	{

		if(string[i] == 14)

		{

			if(foundValue == TRUE)

				goto Exit;

			else

				foundSpaceBeforeValue++;

		}

		else if(string[i] != 14)

		{

			foundValue = TRUE;

			axis[j++] = string[i];

		}

	}

	Exit: return;

}
 

int StringCompare(const char *s1, const char *s2)

{

    unsigned char uc1, uc2;
 

    /* Move s1 and s2 to the first differing characters

       in each string, or the ends of the strings if they

       are identical.  */

    while (*s1 != '\0' && *s1 == *s2) {

	s1++;

	s2++;

    }

    /* Compare the characters as unsigned char and

       return the difference.  */

    uc1 = (*(unsigned char *) s1);

    uc2 = (*(unsigned char *) s2);

    if (uc1 != uc2)

       return ((uc1 < uc2) ? -1 : (uc1 > uc2));

    else

       return 0;

}
 

void AssignNull(char *s1)

{

	while(*s1 != '\0')

		*s1 = NULL,s1++;

}
 
 

void ReadingFiles(char outputFileName[])

{

	FILE *ifile, *ofile;

	int i = 0;

	int gd=DETECT,gm;

	float x,y,p,q;
 

	long curpos;

	char readLine[40];

	initgraph(&gd,&gm,"c:\\tc\\bgi");
 

	 setfillstyle(SOLID_FILL,WHITE);

    bar(0, 0, 639, 480);

    setcolor(1);

    line(320,40,320,400);

    line(140,40,140,400);

    line(500,40,500,400);

    line(140,40,500,40);

    line(140,400,500,400);

    line(140,220,500,220);

    //biforcations:

    setcolor(7);

    line(410,40,410,400);

    line(230,40,230,400);

    line(140,130,500,130);

    line(140,310,500,310);

    //writings:

    setcolor(1);

    settextstyle(1,HORIZ_DIR,1);

    outtextxy(90,30,"+180");

    settextstyle(1,HORIZ_DIR,1);

    outtextxy(80,120,"+psi");

    settextstyle(1,HORIZ_DIR,1);

    outtextxy(120,220,"0");

    settextstyle(1,HORIZ_DIR,1);

    outtextxy(80,320,"-psi");

    settextstyle(1,HORIZ_DIR,1);

    outtextxy(90,405,"-180");

    settextstyle(1,HORIZ_DIR,1);

    outtextxy(120,420,"-180");

    settextstyle(1,HORIZ_DIR,1);

    outtextxy(200,430,"-phi");

    settextstyle(1,HORIZ_DIR,1);

    outtextxy(315,420,"0");

    settextstyle(1,HORIZ_DIR,1);

    outtextxy(400,430,"+phi");

    settextstyle(1,HORIZ_DIR,1);

    outtextxy(470,420,"+180");
 

	if ((ifile = fopen ("angl.txt","r")) == NULL)

	{

		perror("angl.txt");

		printf("Exiting program!");

		getch();

		exit(1);

	}

	else

	{

		ofile = fopen (outputFileName,"w");

		while (!feof(ifile))

		{

			fread(&DataStruct, sizeof(DataStruct), 1, ifile);

		 //	printf("%s\n", DataStruct.a);

		 //	AssignNull(characterSet[i]);

		 //	LeftTrim(DataStruct.lineNumber, characterSet[i]);
 

				if (i == 0)

				{

					LeftTrim(DataStruct.floatingNumber1, x_axis1);

					LeftTrim(DataStruct.floatingNumber2, y_axis1);

				      //	LeftTrim(DataStruct.floatingNumber3, z_axis1);
 

					a[0][0] = atof(x_axis1);a[1][0] = atof(y_axis1);

					x=a[0][0];

					y=a[1][0];
 

					if(x>0)

					{

					 p=320+x;

					 }

					 else

					 p=320-x;
 

					if(y>0)

					{

					 q=220-y;

					}

					else

					q=220+y;
 

					putpixel(p,q,4);

				}
 

					sprintf(readLine, "First Atom: %f\t%f\n", a[0][0], a[0][1]);

					fputs(readLine, ofile);

			}

		}

		fclose(ofile);

		fclose(ifile);

	}
 
 

void main()

{

	int i, j;

	int gd,gm;
 
 

	clrscr();
 

	ReadingFiles("ram.txt");

  //	ReadingFiles(1, "psiSeries.txt");
 

   //	initgraph(&gd,&gm,"c:\\tc\\bgi");
 

     //	putpixel(10,10,4);

}

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Expert Comment

by:Infinity08
ID: 24334485
You're using graphical output. How do you want to put that in a text file ?

What you probably want to do, is use an image manipulation library, like Cairo (http://cairographics.org/) or ImageMagick (http://www.imagemagick.org/script/index.php).
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Author Comment

by:mindboom
ID: 24334619
but how to print the graphical output on a text file???
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LVL 53

Expert Comment

by:Infinity08
ID: 24334685
>> but how to print the graphical output on a text file???

What do you mean ? A text file is for text data, not for graphical data.
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Author Comment

by:mindboom
ID: 24334719
graphical output on a text file nor excel....
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Accepted Solution

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Infinity08 earned 20 total points
ID: 24334851
???
As I said : a text file is for text data, NOT for graphical data.
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