{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950433,-0.310928,0.000000,0.000000,0.173401,-0.530047,0.830050,0.000000,-0.257545,0.787253,0.560271,0.000000,-1644385.128820,5026491.133738,3553297.574090,1],    "boundingVolume": {    "region": [1.886875,0.594640,1.887057,0.594786,0.000000,8.783805]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/12_1457961.b3dm"}}}