{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949071,-0.315062,0.000000,0.000000,0.175859,-0.529747,0.829723,0.000000,-0.260865,0.785813,0.560756,0.000000,-1665587.597029,5017305.330987,3556382.512450,1],    "boundingVolume": {    "region": [1.891249,0.595246,1.891387,0.595352,0.000000,8.805649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1374968.b3dm"}}}