261f4a3b1c
email comments from Andew Sampson, "I've contacted Terrex, and obtained the 2.2 version of their trpage library. The library included a fork of OSG 0.9.8's txp plugin, modified to load 2.1+ txp DBs. I've done the work of incorporating the changes made to OSG's txp plugin since 0.9.8 into Terrex's fork. The forked version is now up-to-date with the changes made to OSG 0.9.9 and 1.0. Terrex made a lot of changes (especially differences in whitespace), so the diff between the forked version and OSG 1.0's txp plugin is yucky. I did my best, but keep in mind that this is the result of a 4-way merge (kinda... terrex-0.9.8, stock-0.9.8, stock-0.9.9, stock-1.0). I really want to see this forked version merged back into the main OSG branch. The new features offered by this version of the plugin (2.1+ support, variable LOD support, bug fixes) are worth the trouble." -- Don Tidrow then took this code and added his work. -- Robert Osfield then fixed all the warnings that abound in the trpage code base.
56 lines
1.0 KiB
C++
56 lines
1.0 KiB
C++
#include "TXPSeamLOD.h"
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#include "TXPArchive.h"
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#include "TXPPagedLOD.h"
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#include "TileMapper.h"
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using namespace txp;
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using namespace osg;
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TXPSeamLOD::TXPSeamLOD() :
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Group()
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{
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_dx = 0;
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_dy = 0;
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}
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TXPSeamLOD::TXPSeamLOD(int x, int y, int lod, int dx, int dy) :
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Group()
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{
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_tid.x = x;
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_tid.y = y;
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_tid.lod = lod;
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_dx = dx;
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_dy = dy;
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}
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TXPSeamLOD::TXPSeamLOD(const TXPSeamLOD& ttg,const osg::CopyOp& copyop) :
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Group(ttg,copyop)
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{
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_tid = ttg._tid;
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_dx = ttg._dx;
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_dy = ttg._dy;
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}
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void TXPSeamLOD::traverse(osg::NodeVisitor& nv)
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{
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if (nv.getVisitorType()==osg::NodeVisitor::CULL_VISITOR && getNumChildren()==2)
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{
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TileMapper* tileMapper = dynamic_cast<TileMapper*>(nv.getUserData());
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if (tileMapper && !tileMapper->isTileNeighbourALowerLODLevel(_tid,_dx,_dy))
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{
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getChild(1)->accept(nv);
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}
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else
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{
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getChild(0)->accept(nv);
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}
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}
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else
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{
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Group::traverse(nv);
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}
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}
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