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1 | package de.ugoe.cs.autoquest.tasktrees.alignment.substitution; |
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2 | |
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3 | public class TriangleMatrix { |
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4 | |
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5 | private float[] matrix; |
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6 | private int size; |
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7 | |
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8 | public TriangleMatrix(int size) { |
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9 | this.size = size; |
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10 | matrix = new float [size*(size+1)/2]; |
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11 | } |
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12 | |
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13 | public float get(int first, int second) { |
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14 | int row = Math.min(first, second); |
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15 | int col = Math.max(first, second); |
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16 | return matrix[row*size-(row*(row+1)/2 - (size-col))]; |
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17 | |
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18 | } |
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19 | |
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20 | public void set(int first, int second, float value) { |
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21 | int row = Math.min(first, second); |
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22 | int col = Math.max(first, second); |
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23 | matrix[row*size-(row*(row+1)/2 - (size-col))] = value; |
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24 | } |
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25 | |
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26 | |
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27 | |
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28 | |
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29 | //Note: String just looks good for small. testing matrices |
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30 | public String toString() { |
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31 | String result = ""; |
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32 | for (int i = 0; i < size; i++) { |
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33 | for(int j = 0; j< size; j++) { |
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34 | if(i<j) { |
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35 | result = result + (this.get(i,j) + " "); |
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36 | } |
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37 | else { |
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38 | result = result + (" "); |
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39 | } |
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40 | } |
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41 | result = result + "\n"; |
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42 | } |
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43 | return result; |
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44 | } |
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45 | } |
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