{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871398,-0.490577,0.000000,0.000000,0.211766,-0.376153,0.902033,0.000000,-0.441961,0.785041,0.434029,0.000000,-2820664.497831,5010258.779019,2751502.714502,1],    "boundingVolume": {    "region": [2.083492,0.448920,2.083605,0.449001,0.000000,62.954785]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/1_221210.b3dm"}}}