{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950720,-0.310050,0.000000,0.000000,0.173399,-0.531701,0.828991,0.000000,-0.256487,0.786477,0.561844,0.000000,-1637639.029052,5021566.810665,3563294.113531,1],    "boundingVolume": {    "region": [1.885959,0.596528,1.886125,0.596697,0.000000,8.809550]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1386470.b3dm"}}}