{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948728,-0.316094,0.000000,0.000000,0.116970,-0.351076,0.929012,0.000000,-0.293384,0.880565,0.372198,0.000000,-1872108.446824,5618969.817517,2359133.527521,1],    "boundingVolume": {    "region": [1.892322,0.381271,1.892489,0.381482,0.000000,9.655717]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/10_68719.b3dm"}}}