{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944302,-0.329081,0.000000,0.000000,0.183948,-0.527842,0.829184,0.000000,-0.272294,0.781351,0.561558,0.000000,-1738563.036808,4988830.621306,3561476.469168,1],    "boundingVolume": {    "region": [1.906069,0.596230,1.906184,0.596305,0.000000,8.785275]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_851690.b3dm"}}}