solved  Read from textfile and store in multidimensional vectors

garrett (12)   Link to this post
I am attempting to use multidimensional vectors to store the following dataset which is stored in a text file.
I am looking for suggestions on how to design the code.

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                                                        END OF HEADER
 09  8 17  0  0  0.0000000  0  9G04G09G02G12G27G17G28G08G15
 -24389977.51348 -18989277.00846  21084492.8364   21084482.9104
        50.0004         38.5004
 -11717496.08247  -9063199.56145  21115595.1804   21115584.9614
        43.7504         32.2504
 -15815385.43247 -12311176.44145  22946135.3054   22946123.1524
        46.5004         31.5004
  -1552963.53346  -1163730.19142  24359328.8134   24359317.7734
        36.0004         16.7504
 -15195458.40147 -11823088.74846  21413063.5474   21413052.9184
        47.7504         36.0004
 -21572719.04547 -16797895.57545  21466436.0004   21466424.1414
        43.7504         34.7504
 -13531252.42747 -10525127.63144  22878039.7504   22878028.3014
        44.5004         28.0004
  -1073852.15045   -828492.95742  25038820.1414   25038809.8054
        35.7504         16.2504
    108661.16746    194209.78843  24308885.3284   24308876.6914
        39.5004         19.5004
 09  8 17  0  0 15.0000000  0  9G04G09G02G12G27G17G28G08G15



I am able to determine the number of rows of data by reading the line below. The first digit represents the number of rows.

9G04G09G02G12G27G17G28G08G15


Therefore i able to use the find() and substrc() functions, and convert it to an interger. This would establish one of boundaries of my for loop.
In this case there would be 9 rows of data.



This is the first row of data:


-24389977.51348 -18989277.00846 21084492.8364 21084482.9104
50.0004 38.5004


I need to store this in columns 1 to 6. Here lies one of my problems, if i use the getline function, how do i read the 2nd line.

Within the header which isn't given above, it states how many readings in a row. In this case, there is 6. If the readings are more than 4, it goes to another line.

Also, the characters are always a fixed number apart, therefor i count the characters to extract each value to put them in each column. Then use a for loop to repeat it to the other lines.
garrett (12)   Link to this post
I am thinking about structuring my multi-dimensional vectors using the code below. It was suggested by ropez in the forum discussion http://www.cplusplus.com/forum/general/833/ .



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vector< vector<int> > vec;

for (int i = 0; i < 10; i++) {
    vec.push_back(vector<int>()); // Add an empty row
}

for (int j = 0; j < 20; j++) {
    for (int i = 0; i < vec.size(); i++) {
        vec[i].push_back(i * j); // Add column to all rows
    }

    }
}
garrett (12)   Link to this post
I solved the problem using Data Structures and multi-dimensional vectors.

The code is for an Rinex Observation Reader.

The solution is long, if anyone in the future need assistance feel free to message me.

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