{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950521,-0.310661,0.000000,0.000000,0.173283,-0.530188,0.829984,0.000000,-0.257303,0.787263,0.560368,0.000000,-1642842.456689,5026555.606903,3553915.728276,1],    "boundingVolume": {    "region": [1.886594,0.594757,1.886776,0.594903,0.000000,8.821063]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1458016.b3dm"}}}