{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898018,-0.439959,0.000000,0.000000,0.281288,-0.574150,0.768914,0.000000,-0.337359,0.688598,0.641889,0.000000,-2154697.283996,4398042.515451,4072268.369290,1],    "boundingVolume": {    "region": [2.026302,0.696931,2.026395,0.696987,0.000000,48.759806]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_751380.b3dm"}}}