{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950519,-0.310665,0.000000,0.000000,0.173752,-0.531615,0.828973,0.000000,-0.256990,0.786293,0.561871,0.000000,-1640850.696069,5020392.889361,3563469.596342,1],    "boundingVolume": {    "region": [1.886640,0.596597,1.886738,0.596696,0.000000,15.223519]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1393777.b3dm"}}}