{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949076,-0.315047,0.000000,0.000000,0.176033,-0.530298,0.829335,0.000000,-0.260729,0.785446,0.561333,0.000000,-1664724.552555,5014973.353142,3560049.153815,1],    "boundingVolume": {    "region": [1.891233,0.595943,1.891371,0.596049,0.000000,28.770337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373853.b3dm"}}}