{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948869,-0.315669,0.000000,0.000000,0.176337,-0.530049,0.829429,0.000000,-0.261275,0.785365,0.561193,0.000000,-1668205.898889,5014451.576456,3559160.386305,1],    "boundingVolume": {    "region": [1.891890,0.595774,1.892027,0.595880,0.000000,8.587410]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1069459.b3dm"}}}