{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898017,-0.439960,0.000000,0.000000,0.281293,-0.574156,0.768908,0.000000,-0.337358,0.688591,0.641897,0.000000,-2154686.840584,4397999.514211,4072319.987861,1],    "boundingVolume": {    "region": [2.026304,0.696941,2.026397,0.696998,0.000000,48.759806]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_751512.b3dm"}}}