{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948895,-0.315593,0.000000,0.000000,0.176247,-0.529922,0.829529,0.000000,-0.261243,0.785481,0.561045,0.000000,-1668004.036555,5015193.725118,3558215.556131,1],    "boundingVolume": {    "region": [1.891809,0.595594,1.891947,0.595701,0.000000,8.745807]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1070596.b3dm"}}}