{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898351,-0.439279,0.000000,0.000000,0.284075,-0.580950,0.762757,0.000000,-0.334119,0.683294,0.649210,0.000000,-2134072.568863,4364305.475023,4118843.151125,1],    "boundingVolume": {    "region": [2.025541,0.706507,2.025642,0.706582,0.000000,43.122198]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1818899.b3dm"}}}