[251] | 1 | #include "ModificationVisitor.h" |
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| 2 | |
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[256] | 3 | using namespace osgTerrain; |
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| 4 | |
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[252] | 5 | ModificationVisitor::ModificationVisitor(std::string extensionToSet) : _extensionToSet(extensionToSet) |
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[251] | 6 | { |
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| 7 | setTraversalMode( osg::NodeVisitor::TRAVERSE_ALL_CHILDREN ); |
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[258] | 8 | technique = new ellipsoidTechnique(); |
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[251] | 9 | } |
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| 10 | |
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| 11 | void ModificationVisitor::apply( osg::Node& node ) |
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| 12 | { |
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[252] | 13 | //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: Node found: " << node.className() << std::endl; |
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[255] | 14 | |
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| 15 | if(std::string(node.className())=="TerrainTile") |
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| 16 | { |
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[256] | 17 | //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: Tile found" << std::endl; |
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| 18 | osgTerrain::TerrainTile* tile = dynamic_cast<osgTerrain::TerrainTile*>(&node); |
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| 19 | if(tile) |
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| 20 | modifyTile(tile); |
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[255] | 21 | } |
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| 22 | |
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[251] | 23 | traverse( node ); |
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| 24 | } |
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| 25 | |
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| 26 | void ModificationVisitor::apply( osg::PagedLOD& pNode ) |
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| 27 | { |
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[252] | 28 | //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: pagedLOD found: " << pNode.className() << std::endl; |
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| 29 | |
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| 30 | for( unsigned int i=0;i<pNode.getNumFileNames();i++) |
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| 31 | { |
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| 32 | //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: pagedLOD Child #" << i << std::endl; |
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| 33 | if(pNode.getFileName(i)!="") |
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| 34 | { |
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| 35 | //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: pagedLOD Child Name pre: " << pNode.getFileName(i) << std::endl; |
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| 36 | pNode.setFileName(i, pNode.getFileName(i)+_extensionToSet ); |
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| 37 | //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: pagedLOD Child Name post: " << newFileName << std::endl; |
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| 38 | } |
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| 39 | } |
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| 40 | |
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[251] | 41 | traverse( pNode ); |
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[255] | 42 | } |
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| 43 | |
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[256] | 44 | void ModificationVisitor::modifyTile(osgTerrain::TerrainTile* tile) |
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[255] | 45 | { |
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[258] | 46 | //OSG_NOTIFY( osg::ALWAYS ) << "ModificationVisitor::modifyTile() : Checking if tile is affected.." << std::endl; |
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[256] | 47 | HeightFieldLayer* hfl = dynamic_cast<HeightFieldLayer*>(tile->getElevationLayer()); |
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| 48 | osg::HeightField* h = hfl->getHeightField(); |
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[255] | 49 | |
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[257] | 50 | // ROI to flatten |
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| 51 | double dest_lat_min = 48.336808; |
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| 52 | double dest_lat_max = 48.370467; |
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| 53 | double dest_lon_min = 11.736750; |
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| 54 | double dest_lon_max = 11.835322; |
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[255] | 55 | |
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[257] | 56 | // Determine extend of the tile. |
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| 57 | double lat_min = h->getOrigin()[1]; |
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[258] | 58 | double lat_max = lat_min + h->getNumRows() * h->getYInterval(); |
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[257] | 59 | double lon_min = h->getOrigin()[0]; |
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[258] | 60 | double lon_max = lon_min + h->getNumColumns() * h->getXInterval(); |
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[255] | 61 | |
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[257] | 62 | // Check if tile is fully or partially inside ROI: |
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| 63 | if(lat_max>dest_lat_min && lat_min<dest_lat_max // lat inside ROI |
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| 64 | && lon_max>dest_lon_min && lon_min<dest_lon_max ) // lon inside ROI |
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| 65 | { |
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[258] | 66 | technique->modifyHeightfield(h, lat_min, lat_max, lon_min, lon_max); |
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[257] | 67 | } |
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[251] | 68 | } |
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