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1 | |
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2 | /* |
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3 | * ---------------------------------------------------------------------- |
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4 | * ColorMap.h: color map class contains an array of (RGBA) values |
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5 | * |
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6 | * ====================================================================== |
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7 | * AUTHOR: Wei Qiao <qiaow@purdue.edu> |
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8 | * Purdue Rendering and Perceptualization Lab (PURPL) |
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9 | * |
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10 | * Copyright (c) 2004-2006 Purdue Research Foundation |
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11 | * |
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12 | * See the file "license.terms" for information on usage and |
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13 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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14 | * ====================================================================== |
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15 | */ |
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16 | |
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17 | #ifndef _TRANSFER_FUNCTION_H_ |
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18 | #define _TRANSFER_FUNCTION_H_ |
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19 | |
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20 | |
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21 | #include "Texture1D.h" |
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22 | |
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23 | |
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24 | class TransferFunction{ |
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25 | int _size; //the resolution of the color map, how many |
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26 | //(RGBA) quadraples |
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27 | float* _data; |
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28 | Texture1D* _tex; //the texture storing the colors |
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29 | |
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30 | public: |
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31 | GLuint id; //OpenGL's texture identifier |
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32 | |
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33 | TransferFunction(int size, float *data); |
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34 | ~TransferFunction(); |
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35 | void update(float *data); |
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36 | void update(int size, float *data); |
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37 | Texture1D* getTexture(void) { |
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38 | return _tex; |
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39 | } |
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40 | float* getData(void) { |
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41 | return _data; |
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42 | } |
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43 | }; |
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44 | |
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45 | #endif |
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