1 | /* |
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2 | |
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3 | Brian Curless |
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4 | |
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5 | Computer Graphics Laboratory |
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6 | Stanford University |
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7 | |
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8 | --------------------------------------------------------------------- |
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9 | |
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10 | Copyright (1997) The Board of Trustees of the Leland Stanford Junior |
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11 | University. Except for commercial resale, lease, license or other |
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12 | commercial transactions, permission is hereby given to use, copy, |
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13 | modify this software for academic purposes only. No part of this |
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14 | software or any derivatives thereof may be used in the production of |
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15 | computer models for resale or for use in a commercial |
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16 | product. STANFORD MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND |
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17 | CONCERNING THIS SOFTWARE. No support is implied or provided. |
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18 | |
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19 | */ |
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20 | |
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21 | |
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22 | #ifndef _MATRIX2F_ |
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23 | #define _MATRIX2F_ |
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24 | |
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25 | #include "defines.h" |
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26 | |
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27 | class Matrix2f { |
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28 | |
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29 | public: |
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30 | float m[2][2]; |
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31 | |
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32 | Matrix2f() {} |
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33 | void clear() {setValue(0,0,0,0);} |
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34 | void setValue(const Matrix2f &a); |
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35 | void setValue(float a[][2]); |
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36 | void setValue(float *a0, float *a1); |
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37 | void setValue(float a00, float a01, float a10, |
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38 | float a11); |
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39 | float elem(int i, int j) {return m[i][j];} |
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40 | void setElem(int i, int j, float val) {m[i][j] = val;} |
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41 | Matrix2f inverse() const; |
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42 | void multArray(float *in, float *out); |
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43 | void makeIdentity(); |
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44 | //void toNR(Matrix2f &in, float **nrmat) const; |
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45 | void setScale(float s); |
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46 | void setScale(float sx, float sy); |
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47 | }; |
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48 | |
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49 | #endif |
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