{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949099,-0.314976,0.000000,0.000000,0.116110,-0.349868,0.929576,0.000000,-0.292526,0.881450,0.370775,0.000000,-1866628.499641,5624599.372626,2350104.117634,1],    "boundingVolume": {    "region": [1.891174,0.379786,1.891282,0.379901,0.000000,86.206870]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/20_76972.b3dm"}}}