{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898090,-0.439812,0.000000,0.000000,0.284300,-0.580536,0.762989,0.000000,-0.334628,0.683305,0.648937,0.000000,-2137315.320016,4364366.405840,4117108.487156,1],    "boundingVolume": {    "region": [2.026120,0.706075,2.026252,0.706298,0.000000,26.925476]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1820690.b3dm"}}}