{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949625,-0.313388,0.000000,0.000000,0.175172,-0.530805,0.829193,0.000000,-0.259312,0.785764,0.561544,0.000000,-1655675.475447,5017010.479921,3561389.585073,1],    "boundingVolume": {    "region": [1.889506,0.596210,1.889604,0.596292,0.000000,12.457991]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/12_1443979.b3dm"}}}