{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949062,-0.315090,0.000000,0.000000,0.176218,-0.530774,0.828991,0.000000,-0.260656,0.785105,0.561844,0.000000,-1664258.668377,5012804.805354,3563297.722307,1],    "boundingVolume": {    "region": [1.891297,0.596603,1.891398,0.596624,0.000000,9.660840]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/10_1420454.b3dm"}}}