1 | #include "ellipsoidTechnique.h" |
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2 | |
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3 | |
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4 | ellipsoidTechnique::ellipsoidTechnique() |
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5 | { |
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6 | _height = 0.0; |
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7 | } |
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8 | |
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9 | ellipsoidTechnique::~ellipsoidTechnique() |
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10 | { |
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11 | } |
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12 | |
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13 | void ellipsoidTechnique::modifyHeightfield(region& modificationROI, osg::HeightField* h, region tileExtends) |
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14 | { |
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15 | //OSG_NOTIFY( osg::ALWAYS ) << "ellipsoidTechnique::modifyHeightfield()" << std::endl; |
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16 | //OSG_NOTIFY( osg::ALWAYS ) << "LAT: " << tileExtends._lat_min << " | " << tileExtends._lat_max << std::endl; |
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17 | //OSG_NOTIFY( osg::ALWAYS ) << "LON: " << tileExtends._lon_min << " | " << tileExtends._lon_max << std::endl; |
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18 | |
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19 | // calculate colum start/end and row start/end of affected vertices |
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20 | int startX=0, startY=0, endX=h->getNumColumns(), endY=h->getNumRows(); |
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21 | |
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22 | |
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23 | // Determine loop variables.. |
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24 | if(tileExtends._lat_min<modificationROI._lat_min) |
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25 | startY = (modificationROI._lat_min - tileExtends._lat_min) / h->getYInterval(); |
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26 | if(tileExtends._lat_max>modificationROI._lat_max) |
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27 | endY = (modificationROI._lat_max - tileExtends._lat_min) / h->getYInterval(); |
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28 | |
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29 | if(tileExtends._lon_min<modificationROI._lon_min) |
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30 | startX = (modificationROI._lon_min - tileExtends._lon_min) / h->getXInterval(); |
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31 | if(tileExtends._lon_max>modificationROI._lon_max) |
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32 | endX = (modificationROI._lon_max - tileExtends._lon_min) / h->getXInterval(); |
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33 | |
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34 | |
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35 | // Modify height value of affected vertices |
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36 | for(int x=startX;x<endX;x++) |
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37 | { |
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38 | for(int y=startY;y<endY;y++) |
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39 | { |
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40 | h->setHeight( x, y, _height); |
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41 | } |
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42 | } |
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43 | } |
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44 | |
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