{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897883,-0.440234,0.000000,0.000000,0.282627,-0.576435,0.766710,0.000000,-0.336595,0.686505,0.644527,0.000000,-2149839.723276,4384725.232796,4089048.648944,1],    "boundingVolume": {    "region": [2.026592,0.700369,2.026719,0.700438,0.000000,25.391125]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4_852790.b3dm"}}}