{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949080,-0.315034,0.000000,0.000000,0.175828,-0.529706,0.829757,0.000000,-0.260852,0.785852,0.560707,0.000000,-1665506.340526,5017556.038257,3556068.962354,1],    "boundingVolume": {    "region": [1.891220,0.595186,1.891357,0.595293,0.000000,8.820004]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1375258.b3dm"}}}