{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949115,-0.314931,0.000000,0.000000,0.115928,-0.349376,0.929783,0.000000,-0.292549,0.881663,0.370249,0.000000,-1866775.455177,5625952.070615,2346769.625027,1],    "boundingVolume": {    "region": [1.891126,0.379220,1.891234,0.379335,0.000000,66.982994]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/15_6723.b3dm"}}}