{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897644,-0.440721,0.000000,0.000000,0.285523,-0.581543,0.761764,0.000000,-0.334776,0.681860,0.650378,0.000000,-2138278.605982,4355169.796537,4126274.904959,1],    "boundingVolume": {    "region": [2.027122,0.707968,2.027274,0.708195,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1797017.b3dm"}}}