{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943960,-0.330059,0.000000,0.000000,0.184357,-0.527256,0.829466,0.000000,-0.273197,0.781336,0.561139,0.000000,-1744327.700213,4988730.991990,3558814.234883,1],    "boundingVolume": {    "region": [1.907115,0.595704,1.907210,0.595819,0.000000,8.349586]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1272456.b3dm"}}}