{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950555,-0.310555,0.000000,0.000000,0.173304,-0.530453,0.829810,0.000000,-0.257161,0.787125,0.560627,0.000000,-1641936.298810,5025680.760889,3555560.278394,1],    "boundingVolume": {    "region": [1.886482,0.595070,1.886665,0.595216,0.000000,8.805440]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/15_1449800.b3dm"}}}