{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.892937,-0.450182,0.000000,0.000000,0.290492,-0.576193,0.763948,0.000000,-0.342951,0.680245,0.647805,0.000000,-2190467.425267,4344801.377358,4109908.255723,1],    "boundingVolume": {    "region": [2.037713,0.704666,2.037817,0.704734,0.000000,25.511303]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/15_1927163.b3dm"}}}