std::unique_ptr<BSPNode> BSPUnion(std::unique_ptr<BSPNode> a, std::unique_ptr<BSPNode> b) {
if(!a || b->isleaf == UNDER || a->isleaf==OVER) {
if(a && b->isleaf==UNDER)
{
FaceCutting(a.get(), b->brep);
}
return b;
}
if(a->isleaf == UNDER || b->isleaf==OVER) {
return a;
}
std::unique_ptr<BSPNode> aover;
std::unique_ptr<BSPNode> aunder;
// its like "b" is the master, so a should be the little object and b is the area's shell
assert(!a->isleaf);
BSPPartition(move(a), float4(b->xyz(), b->w), aunder, aover);
assert(aunder || aover);
b->under = BSPUnion(move(aunder), move(b->under));
b->over = BSPUnion(move(aover), move(b->over));
/* if(fusenodes) {
if(b->over->isleaf == UNDER) {
DeriveCells(b->under,b->cell);
return b->under;
}
if(b->under->isleaf == OVER) {
DeriveCells(b->over,b->cell);
return b->over;
}
}
*/
return b;
}
BSPNode *BSPUnion(BSPNode *a,BSPNode *b) {
if(!a || b->isleaf == UNDER || a->isleaf==OVER) {
if(a && b->isleaf==UNDER)
{
FaceCutting(a,b->brep);
}
return b;
}
if(a->isleaf == UNDER || b->isleaf==OVER) {
return a;
}
BSPNode *aover;
BSPNode *aunder;
// its like "b" is the master, so a should be the little object and b is the area's shell
assert(!a->isleaf);
BSPPartition(a, float4(b->xyz(), b->w), aunder, aover);
assert(aunder || aover);
b->under = BSPUnion(aunder,b->under);
b->over = BSPUnion(aover ,b->over );
/* if(fusenodes) {
if(b->over->isleaf == UNDER) {
DeriveCells(b->under,b->cell);
return b->under;
}
if(b->under->isleaf == OVER) {
DeriveCells(b->over,b->cell);
return b->over;
}
}
*/
return b;
}
