1 | #include "ModificationVisitor.h" |
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2 | |
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3 | using namespace osgTerrain; |
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4 | |
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5 | ModificationVisitor::ModificationVisitor(std::string extensionToSet) : _extensionToSet(extensionToSet) |
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6 | { |
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7 | setTraversalMode( osg::NodeVisitor::TRAVERSE_ALL_CHILDREN ); |
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8 | } |
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9 | |
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10 | void ModificationVisitor::apply( osg::Node& node ) |
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11 | { |
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12 | //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: Node found: " << node.className() << std::endl; |
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13 | |
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14 | if(std::string(node.className())=="TerrainTile") |
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15 | { |
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16 | //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: Tile found" << std::endl; |
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17 | osgTerrain::TerrainTile* tile = dynamic_cast<osgTerrain::TerrainTile*>(&node); |
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18 | if(tile) |
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19 | modifyTile(tile); |
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20 | } |
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21 | |
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22 | traverse( node ); |
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23 | } |
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24 | |
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25 | void ModificationVisitor::apply( osg::PagedLOD& pNode ) |
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26 | { |
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27 | //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: pagedLOD found: " << pNode.className() << std::endl; |
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28 | |
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29 | for( unsigned int i=0;i<pNode.getNumFileNames();i++) |
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30 | { |
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31 | //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: pagedLOD Child #" << i << std::endl; |
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32 | if(pNode.getFileName(i)!="") |
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33 | { |
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34 | //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: pagedLOD Child Name pre: " << pNode.getFileName(i) << std::endl; |
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35 | pNode.setFileName(i, pNode.getFileName(i)+_extensionToSet ); |
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36 | //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: pagedLOD Child Name post: " << newFileName << std::endl; |
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37 | } |
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38 | } |
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39 | |
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40 | traverse( pNode ); |
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41 | } |
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42 | |
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43 | void ModificationVisitor::modifyTile(osgTerrain::TerrainTile* tile) |
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44 | { |
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45 | //OSG_NOTIFY( osg::ALWAYS ) << "ModificationVisitor::modifyTile()" << std::endl; |
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46 | HeightFieldLayer* hfl = dynamic_cast<HeightFieldLayer*>(tile->getElevationLayer()); |
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47 | osg::HeightField* h = hfl->getHeightField(); |
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48 | |
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49 | // ROI to flatten |
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50 | double dest_lat_min = 48.336808; |
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51 | double dest_lat_max = 48.370467; |
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52 | double dest_lon_min = 11.736750; |
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53 | double dest_lon_max = 11.835322; |
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54 | |
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55 | // Determine extend of the tile. |
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56 | int rows = h->getNumRows(); |
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57 | int cols = h->getNumColumns(); |
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58 | double lat_min = h->getOrigin()[1]; |
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59 | double lat_max = lat_min + rows * h->getYInterval(); |
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60 | double lon_min = h->getOrigin()[0]; |
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61 | double lon_max = lon_min + cols * h->getXInterval(); |
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62 | |
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63 | // Check if tile is fully or partially inside ROI: |
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64 | if(lat_max>dest_lat_min && lat_min<dest_lat_max // lat inside ROI |
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65 | && lon_max>dest_lon_min && lon_min<dest_lon_max ) // lon inside ROI |
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66 | { |
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67 | OSG_NOTIFY( osg::ALWAYS ) << "ModificationVisitor::modifyTile() :: affected Tile" << std::endl; |
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68 | OSG_NOTIFY( osg::ALWAYS ) << "LAT: " << lat_min << " | " << lat_max << std::endl; |
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69 | OSG_NOTIFY( osg::ALWAYS ) << "LON: " << lon_min << " | " << lon_max << std::endl; |
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70 | |
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71 | |
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72 | // calculate colum start/end and row start/end of affected vertices |
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73 | int startX=0,startY=0,endX=cols,endY=rows; |
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74 | |
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75 | |
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76 | // modify height value of affected vertices |
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77 | h->setHeight( 0,0, 600); |
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78 | |
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79 | } |
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80 | |
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81 | |
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82 | |
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83 | |
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84 | |
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85 | |
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86 | |
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87 | //OSG_NOTIFY( osg::ALWAYS ) << "Origin: " << h->getOrigin()[0] << " | " << h->getOrigin()[1] << std::endl; |
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88 | //OSG_NOTIFY( osg::ALWAYS ) << "X-Intervall: " << h->getXInterval() << std::endl; |
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89 | //OSG_NOTIFY( osg::ALWAYS ) << "Y-Intervall: " << h->getYInterval() << std::endl; |
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90 | //if(dest_lat_min<=lat_min && lat_max<=dest_lat_max && dest_lon_min<=lon_min && lon_max<=dest_lon_max) |
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91 | //{ |
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92 | // OSG_NOTIFY( osg::ALWAYS ) << "ModificationVisitor::modifyTile() :: affected Tile" << std::endl; |
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93 | // OSG_NOTIFY( osg::ALWAYS ) << "LAT: " << lat_min << " | " << lat_max << std::endl; |
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94 | // OSG_NOTIFY( osg::ALWAYS ) << "LON: " << lon_min << " | " << lon_max << std::endl; |
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95 | |
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96 | // h->setHeight( 0,0, 1000); |
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97 | //} |
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98 | //OpenThreads::Thread::microSleep( 50000 ); |
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99 | } |
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