{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950849,-0.309654,0.000000,0.000000,0.172832,-0.530714,0.829742,0.000000,-0.256393,0.787303,0.560729,0.000000,-1637034.048020,5026819.487466,3556206.574745,1],    "boundingVolume": {    "region": [1.885552,0.595156,1.885698,0.595375,0.000000,7.596322]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/9_1448535.b3dm"}}}