{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949533,-0.313668,0.000000,0.000000,0.174565,-0.528441,0.830829,0.000000,-0.260061,0.787252,0.559109,0.000000,-1660440.484215,5026464.598939,3545910.838207,1],    "boundingVolume": {    "region": [1.889769,0.593177,1.889931,0.593443,0.000000,7.454605]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1321574.b3dm"}}}