{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949107,-0.314953,0.000000,0.000000,0.175968,-0.530278,0.829362,0.000000,-0.260660,0.785497,0.561294,0.000000,-1664281.744355,5015299.294852,3559798.705294,1],    "boundingVolume": {    "region": [1.891134,0.595895,1.891272,0.596001,0.000000,17.644930]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1361453.b3dm"}}}