{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871361,-0.490643,0.000000,0.000000,0.211790,-0.376130,0.902037,0.000000,-0.442022,0.785011,0.434021,0.000000,-2821053.402077,5010070.787472,2751446.694873,1],    "boundingVolume": {    "region": [2.083567,0.448911,2.083680,0.448991,0.000000,30.477902]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_220970.b3dm"}}}