{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896740,-0.442558,0.000000,0.000000,0.282716,-0.572857,0.769355,0.000000,-0.339549,0.688015,0.641359,0.000000,-2168675.348344,4394310.491729,4068898.555320,1],    "boundingVolume": {    "region": [2.029154,0.696212,2.029337,0.696325,0.000000,45.700907]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/7_473145.b3dm"}}}