{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898476,-0.439023,0.000000,0.000000,0.283936,-0.581085,0.762706,0.000000,-0.333902,0.683343,0.649270,0.000000,-2132685.892143,4364617.402970,4119228.245991,1],    "boundingVolume": {    "region": [2.025257,0.706587,2.025358,0.706662,0.000000,52.896269]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1819427.b3dm"}}}