[264] | 1 | #include "rampedEllipsoidTechnique.h" |
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| 2 | |
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| 3 | |
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| 4 | |
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| 5 | rampedEllipsoidTechnique::rampedEllipsoidTechnique() |
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| 6 | { |
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| 7 | _height = 0.0; |
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| 8 | _rampWidth_percent = 10.0; |
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| 9 | } |
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| 10 | |
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| 11 | rampedEllipsoidTechnique::~rampedEllipsoidTechnique() |
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| 12 | { |
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| 13 | } |
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| 14 | |
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| 15 | void rampedEllipsoidTechnique::modifyHeightfield(osg::Vec4d& modificationROI, osg::HeightField* h, osg::Vec4d tileExtends) |
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| 16 | { |
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| 17 | //OSG_NOTIFY( osg::ALWAYS ) << "ellipsoidTechnique::modifyHeightfield()" << std::endl; |
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| 18 | //OSG_NOTIFY( osg::ALWAYS ) << "LAT: " << tileExtends[0] << " | " << tileExtends[1] << std::endl; |
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| 19 | //OSG_NOTIFY( osg::ALWAYS ) << "LON: " << tileExtends[2] << " | " << tileExtends[3] << std::endl; |
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| 20 | |
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| 21 | // calculate colum start/end and row start/end of affected vertices |
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| 22 | int startX=0, startY=0, endX=h->getNumColumns(), endY=h->getNumRows(); |
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| 23 | |
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| 24 | |
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| 25 | // Dertermine loop variables.. |
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| 26 | if(tileExtends[0]<modificationROI[0]) |
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| 27 | startY = (modificationROI[0] - tileExtends[0]) / h->getYInterval(); |
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| 28 | if(tileExtends[1]>modificationROI[1]) |
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| 29 | endY = (modificationROI[1] - tileExtends[0]) / h->getYInterval(); |
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| 30 | |
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| 31 | if(tileExtends[2]<modificationROI[2]) |
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| 32 | startX = (modificationROI[2] - tileExtends[2]) / h->getXInterval(); |
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| 33 | if(tileExtends[3]>modificationROI[3]) |
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| 34 | endX = (modificationROI[3] - tileExtends[2]) / h->getXInterval(); |
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| 35 | |
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| 36 | |
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| 37 | // Modify height value of affected vertices |
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| 38 | for(int x=startX;x<endX;x++) |
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| 39 | { |
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| 40 | for(int y=startY;y<endY;y++) |
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| 41 | { |
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| 42 | h->setHeight( x, y, _height); |
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| 43 | } |
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| 44 | } |
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| 45 | } |
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| 46 | |
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