{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950261,-0.311454,0.000000,0.000000,0.173981,-0.530824,0.829432,0.000000,-0.257787,0.786519,0.561190,0.000000,-1645934.191769,5021821.509638,3559138.742614,1],    "boundingVolume": {    "region": [1.887469,0.595764,1.887569,0.595881,0.000000,8.819647]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_1429265.b3dm"}}}