{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950033,-0.312150,0.000000,0.000000,0.174069,-0.529781,0.830079,0.000000,-0.258566,0.786950,0.560227,0.000000,-1650903.165486,5024554.643142,3553015.914019,1],    "boundingVolume": {    "region": [1.888169,0.594594,1.888333,0.594725,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1461023.b3dm"}}}