{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950349,-0.311186,0.000000,0.000000,0.173686,-0.530430,0.829745,0.000000,-0.257663,0.786892,0.560724,0.000000,-1645139.068256,5024193.756448,3556177.131598,1],    "boundingVolume": {    "region": [1.887187,0.595201,1.887286,0.595318,0.000000,8.789344]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1454349.b3dm"}}}