C++ :: Parse TXT File - How To Get X And Y Coordinates Of Each Control Points From 2 Images

Jan 30, 2013

I have a text file with the following format

//MAIN OBJECT
Object = ControlNetwork
Created = 2013-01-28T12:26:17

//FIRST CONTROL POINT OBJECT
Object = ControlPoint
PointId = 1

[Code] ....

I want to get the X and Y coordinates of the each control points from 2 images.

For example, from the above file i want to retrieve such information:

-PointID=1 and point coordinates are 802,725(from image1) and 480,708 (from image2)

-PointID=2 and point coordinates are 317,130(from image1) and 128,116 (from image2)

There can be millions of points in such a text file. So what is the best way to parse these files?

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C++ :: Store Coordinates As X And Y In A Vector To Find Nearest Neighbor Of Given Points

Oct 13, 2014

Lets say that i have the coordinates of a 2D space (x and y), I want to store the coordinates as x and y in a vector to find the nearest neighbor of given points like i have:

#3.57 3.18#
#84.91 27.69
#93.40 4.62
#67.87 9.71
#75.77 82.35
#74.31 69.48
#39.22 31.71
#65.55 95.02
#17.12 3.44
#70.60 43.87

Each coordinates is like x y and it shows points 1 to 10 (like 3.57 3.18 is point 1 in 2D space ). My question is that how i add all x and y coordinates in vector? I started like this;

`struct point{
int x;
int y;

[Code] ....

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//#import "c:windowsSysWow64mscomctl.ocx" raw_interfaces_only //in window7

using namespace MSComctlLib;
CComPtr<IButtons> pButtons;
CComPtr<IButton> pButton;
CComPtr<IImages> pImages;

[Code] ....

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Apr 7, 2014

I need to read x,y coordinates in text file using c++. The name of file is input.txt which is,

x      y
232.1,753.7
100.5,981.6
96.2,992.9
148.7,953.2
197.2,999.3
249.9,998.6
261.7,975.9
262.4,905.8
334.9,980.8
371.6,979.4
396.7,996.3
405.1,995
565.5,766
459.4,988.5
474.4,994.6
594.6,996.8
604,987.3
612.8,877.3
664.1,992.6

#include <iostream>
#include <fstream>
using namespace std  
struct monsters_struct {
int x, y;

[Code] ....

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May 16, 2014

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Sample text file
================
3:290:61:100:
2:50:
5:346:87:

I have tried using getline in while loop, but it seemed more complicated because i think it requires much more than that.

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Jul 31, 2014

I am trying to parse a text file that contains information and i cant seem to get started. For example, the text file looks like this:

idx=929392, pl= 12, name= someperson
age=19
state=ma
status=n/a

idx=929393, pl= 12, name= someperson2
age=20
state=ma
status=n/a

idx=929394, pl= 12, name= someperson3
age=21
state=ma
status=n/a

I want to parse the name and age into another text file like this format:

someperson 19
someperson 20
someperson 21

possibly include other attributes next to the age like idx?

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Nov 14, 2014

I have this project for school where I basically need to write a program that will take any text file and convert it into html code.

string line;
int lineCount = 0;
while (!inFile.eof()) {
getline(inFile, line);
cout << line << endl;
lineCount++;
}
cout << lineCount - 1 << " lines of text read in this file." << endl;

I have this block of code to print each line of the text file into the terminal window and count the number of lines printed. But I don't know how to make it change a single character or set of characters to something else. For example, if a line of text begins with the number "1", I want to be able to change it to "<h1>".

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Nov 23, 2014

I'm trying to make a program where it reads a text file which contains "blocks" of questions like:

Type: multiple_choice
Question
Num_options: number of options
a) option1
b) option2
c) option3
d) option4
Letter of answer

and

Type: short_answer
Question
Answer text

what I'm trying to do is use parse those blocks and have it get handled by the classes, MultipleChoice and ShortAnswer.

I'm planning on using getline as a virtual function and have an if statement like
"if (string == "multiple choice)
** then get it handled by the MultipleChoice class "

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Oct 18, 2014

Write a program that reads the telephone.dat file and displays its contents on the console. The program should allow the user to add new entries to the file.

I have saved the file into a resource file within visual studio and I am trying to run the code to where the file will be shown when I run the program. I know that the program is running and the file is there because if i misspell the filename it will give me the error message. I don't know how to make the contents of the file display.

#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main() {
string input;
fstream dataFile;

[code]...

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Aug 9, 2012

my data are
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#ach~123~tvm~999999~body~#
#sam~123~tvm~999999~wash~#
#sus~123~tvm~999999~area~#
#sach~123~tvm~999999~local~#

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Mar 11, 2015

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Nov 14, 2013

I have been working on a program to read in a tab deliminated text file of xyz coordinates of atoms/particles and store the values in three seperate arrays. This is my code so far:

Code:

#include<stdio.h>
#include<stdlib.h>
void fileinput(FILE *ifp) {
int N, column, atom;
int c;
column = 1;

[Code]...

Supposedly this should assign the values in the text file to the cooresponding arrays but when I run the code on a simple test file all I get is:

Code:

$ ./input.o -i ./test.txt
Atom one coodinates x 0.000000, y 0.000000, and z 0.000000 Where test.txt is: Code: 1.0000 2.000 1.5
3.0000 5.000 1.4
4.0000 3.000 1.3

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Feb 20, 2015

I have a text file which contains many sentences. I am trying to extract only the numerical values from the string that conatins characters,numbers and white spaces from the file. I want to seperate the characters and numbers into different parts.

for example: the file contains sentances as given below.

I have to go to school for 10min.
You will come here in 15min.
He stayed here for 20min.

from the above sentances, I want to seperate " I have to go to school for " and "10" and put them into two different variables and also 10 should be in integer format.

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Mar 12, 2015

I am working on a program where I am reading in a text file to be parsed to load data objects into their appropriate classes. I have a class to load in this file and to parse its contents. I am at the point where I would like to include the ability to have both C and C++ style comments in this text file. My current class has a constructor that takes in const std::string for its file name. Upon construction I have a while loop that calls a member function getNextLine() as long as this is true this loader class object then calls parseGui(). All of this works correctly so far. Within the function getNextLine() looks like this:

// ----------------------------------------------------------------------------
// getNextLine()
// Returns True If It Got A Line Of Text (Could Be Blank If It Is All Commented Out Or
// If It Truly Was A Blank Line). False Is Returned When There Is No More Data In The File
bool GuiLoader::getNextLine() {
if ( !_file.readLine( _strLine ) ) {
return false;

[Code] ....

As you can see this getNextLine() method reads in a single line of text and saves it into its member variable which is a std::string. It increments the line number, then a utility function trims out leading and ending white spaces. The next part is where this class calls a member function to remove comments. It is in here where I need to parse the string to look for comments either "//" C++ style line comments or "/* ... */" C style block comments that can span multiple lines. I have tried many different ways to go about doing this, and I am stuck on the C style comments. A note to consider is this: the way this code is designed is reading in a line of text from the file into a string variable and in doing so it is not logical for me to read in the complete file and do a pre-parse scan or analyzer.

This is what I have so far, however there are still cases that this code will fail on

// ----------------------------------------------------------------------------
// removeComments()
void GuiLoader::removeComments() {
const unsigned tokenLength = 1;
static std::string::size_type indexA;
static std::string::size_type indexB;
const std::string commentStartingToken( "/" );
const std::string blockCommentStartingQualifier( "*" );

[Code] .....

An example of where this code will fail is when it encounters a single '/' any where on a line of text as it goes into an infinite loop. I am not sure on how to go about skipping this lonely '/' and advanced the index to look for a possible next '/' that belongs to a '//' or a '/*'. I know that this is sort of trivial, but for some reason or another I am having writers block.

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Jun 6, 2014

I'm using the Split method to parse line in a csv file. The following code works if there are no commas in the text of my data.

string csvLine;
string[] splitLine;
csvLine = "Jim Borland,1234,Never dreams in code";
splitLine = csvLine.Split(',');

But if I have commas in the some of the text as below I get then wrong output. So I need split on a commas which are not enclosed in double quotes.

string csvLine;
string[] splitLine;
csvLine = ""Jim,C,Borland",1234,"Never dreams in code"";
splitLine = csvLine.Split(',');

The output I want is:

Jim,C,Borland
1234
Never dreams in code

I found this :

If your strings are all well-formed it is possible with the following regular expression:

String[] res = str.split(",(?=([^"]|"[^"]*")*$)");

The expression ensures that a split occurs only at commas which are followed by an even (or zero) number of quotes ... and thus not inside such quotes).

Nevertheless, it may be easier to use a simple non-regex parser.

But the .split gives me an error and .Split doesn't work either.

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How do I write a presudo code to find all the maximal points among the given n points?

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Code:

Write a programt that inputs (at most 50) records from a sequential file
#include <stdio.h>
#include <stdlib.h>
struct employee // employee structure definition
}

[code]....

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This warning happens when assigning str to goal and assist, and I think it is because they are, when dereferenced, integers. The code below correctly assigns the name into the correct spot, but leaves nonsense data in the goal and assist arrays.

ex:-7880, -7888 file example: NAME GOALS ASSISTS JOHN 1 2

Code:
void readLinesFromFile( FILE* Ptr, int* goal, int* assist, char** name, int lines ){/*
* Reads lines from files and populates the arrays with the corresponding info.
*/
int index;
char hold[ MAX_LINE ] = { 0 };
char* str = NULL;

[Code] .....

From what I understand about strtok(), it returns a string, and takes in a character array and a key value that tells it when to stop. In the online examples I've seen, they use NULL in the first field. I'm not sure why.

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So I am trying to create a program that reads a series of files and creates a graph plotting points from the file. So far my code looks a little something like this -

include <iostream>
include "ccc_x11.h"
include "ccc_shap.h"
include "ccc_win.h"
include <fstream>
using namespace std ;
int ccc_win_main() {
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[Code] ....

However when I run the program nothing happens. I think it has to do with the way I set up my files, which looks a little something like this-

-9 -9 -9 -9 -9 -9 -7 -7 -6 -6 -5 -5 -4 6 3 1 -1 -3 -6 5 -5 4 -4 2 -2 0

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