{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950024,-0.312178,0.000000,0.000000,0.174057,-0.529694,0.830137,0.000000,-0.258607,0.786997,0.560140,0.000000,-1651166.950956,5024857.721790,3552468.367964,1],    "boundingVolume": {    "region": [1.888199,0.594490,1.888363,0.594621,0.000000,12.137889]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1460232.b3dm"}}}