{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949149,-0.314826,0.000000,0.000000,0.116357,-0.350798,0.929194,0.000000,-0.292265,0.881130,0.371740,0.000000,-1864967.314339,5622571.262163,2356226.759142,1],    "boundingVolume": {    "region": [1.891001,0.380833,1.891139,0.380933,0.000000,10.626647]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/19/9_71973.b3dm"}}}