{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950468,-0.310823,0.000000,0.000000,0.173516,-0.530594,0.829676,0.000000,-0.257341,0.786923,0.560827,0.000000,-1643086.300727,5024397.117764,3556834.372306,1],    "boundingVolume": {    "region": [1.886806,0.595326,1.886905,0.595443,0.000000,8.818353]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1450769.b3dm"}}}