{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950173,-0.311722,0.000000,0.000000,0.174090,-0.530652,0.829519,0.000000,-0.258036,0.786529,0.561061,0.000000,-1647523.515451,5021885.928145,3558317.943966,1],    "boundingVolume": {    "region": [1.887751,0.595608,1.887851,0.595725,0.000000,8.805452]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1428380.b3dm"}}}