{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949102,-0.314970,0.000000,0.000000,0.116104,-0.349858,0.929580,0.000000,-0.292521,0.881456,0.370764,0.000000,-1866597.095516,5624637.941669,2350037.201781,1],    "boundingVolume": {    "region": [1.891167,0.379774,1.891275,0.379890,0.000000,86.206870]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/20_76830.b3dm"}}}