{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951043,-0.309059,0.000000,0.000000,0.171210,-0.526852,0.832535,0.000000,-0.256770,0.790138,0.556552,0.000000,-1639417.244225,5044843.081358,3529665.240081,1],    "boundingVolume": {    "region": [1.884915,0.590169,1.885085,0.590292,0.000000,7.797436]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/12/15_1322963.b3dm"}}}