{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950680,-0.310173,0.000000,0.000000,0.173159,-0.530731,0.829663,0.000000,-0.256799,0.787087,0.560846,0.000000,-1639624.354867,5025443.551556,3556952.789730,1],    "boundingVolume": {    "region": [1.886114,0.595350,1.886229,0.595464,0.000000,8.783670]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1345054.b3dm"}}}