{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949068,-0.315073,0.000000,0.000000,0.176126,-0.530530,0.829167,0.000000,-0.260698,0.785278,0.561583,0.000000,-1664523.181757,5013904.339823,3561637.985001,1],    "boundingVolume": {    "region": [1.891261,0.596245,1.891398,0.596351,0.000000,8.793916]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1447846.b3dm"}}}