{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950684,-0.310163,0.000000,0.000000,0.173227,-0.530960,0.829502,0.000000,-0.256740,0.786936,0.561085,0.000000,-1639248.099580,5024482.391736,3558473.479279,1],    "boundingVolume": {    "region": [1.886103,0.595639,1.886218,0.595754,0.000000,8.756279]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1424217.b3dm"}}}