{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948759,-0.315999,0.000000,0.000000,0.176352,-0.529480,0.829790,0.000000,-0.261662,0.785618,0.560658,0.000000,-1670676.887860,5016058.799426,3555757.893760,1],    "boundingVolume": {    "region": [1.892258,0.595069,1.892354,0.595292,0.000000,8.812225]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1073945.b3dm"}}}