{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950145,-0.311809,0.000000,0.000000,0.174178,-0.530757,0.829433,0.000000,-0.258081,0.786424,0.561188,0.000000,-1647811.171970,5021215.595763,3559125.195854,1],    "boundingVolume": {    "region": [1.887843,0.595762,1.887942,0.595879,0.000000,8.819331]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1429239.b3dm"}}}