{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943923,-0.330166,0.000000,0.000000,0.184405,-0.527202,0.829489,0.000000,-0.273293,0.781328,0.561104,0.000000,-1744942.385449,4988674.791152,3558593.162823,1],    "boundingVolume": {    "region": [1.907228,0.595662,1.907324,0.595777,0.000000,8.789196]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1273235.b3dm"}}}