{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898471,-0.439033,0.000000,0.000000,0.283832,-0.580856,0.762919,0.000000,-0.334004,0.683532,0.649019,0.000000,-2133334.704758,4365817.947472,4117630.497397,1],    "boundingVolume": {    "region": [2.025268,0.706257,2.025369,0.706332,0.000000,6.411029]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/3_1817878.b3dm"}}}