{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944131,-0.329570,0.000000,0.000000,0.184044,-0.527238,0.829547,0.000000,-0.272819,0.781555,0.561019,0.000000,-1741911.928318,4990122.030625,3558052.317312,1],    "boundingVolume": {    "region": [1.906596,0.595559,1.906692,0.595674,0.000000,8.784430]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/6_1296807.b3dm"}}}