{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950036,-0.312139,0.000000,0.000000,0.174060,-0.529776,0.830085,0.000000,-0.258559,0.786957,0.560219,0.000000,-1650857.388611,5024603.713694,3552968.111467,1],    "boundingVolume": {    "region": [1.888158,0.594585,1.888322,0.594716,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460937.b3dm"}}}