{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950530,-0.310633,0.000000,0.000000,0.173392,-0.530576,0.829714,0.000000,-0.257195,0.787011,0.560771,0.000000,-1642155.120067,5024957.415097,3556475.290673,1],    "boundingVolume": {    "region": [1.886597,0.595259,1.886713,0.595374,0.000000,8.803719]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1450492.b3dm"}}}