{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949589,-0.313497,0.000000,0.000000,0.175240,-0.530806,0.829178,0.000000,-0.259397,0.785720,0.561567,0.000000,-1656219.972512,5016727.421196,3561534.171606,1],    "boundingVolume": {    "region": [1.889620,0.596237,1.889719,0.596319,0.000000,12.700957]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/12_1444456.b3dm"}}}