{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950808,-0.309780,0.000000,0.000000,0.173028,-0.531074,0.829471,0.000000,-0.256413,0.787009,0.561132,0.000000,-1637166.293407,5024951.675926,3558767.234797,1],    "boundingVolume": {    "region": [1.885685,0.595642,1.885831,0.595862,0.000000,8.801387]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/12_1421839.b3dm"}}}