{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950067,-0.312047,0.000000,0.000000,0.173990,-0.529735,0.830126,0.000000,-0.258495,0.787022,0.560158,0.000000,-1650453.020758,5025014.431706,3552577.723365,1],    "boundingVolume": {    "region": [1.888061,0.594510,1.888225,0.594642,0.000000,11.279145]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1458477.b3dm"}}}