{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949057,-0.315105,0.000000,0.000000,0.176223,-0.530763,0.828997,0.000000,-0.260670,0.785107,0.561835,0.000000,-1664348.973276,5012817.756837,3563237.727551,1],    "boundingVolume": {    "region": [1.891313,0.596591,1.891414,0.596613,0.000000,10.428684]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1419469.b3dm"}}}