{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897673,-0.440662,0.000000,0.000000,0.285486,-0.581563,0.761763,0.000000,-0.334731,0.681881,0.650379,0.000000,-2137991.760229,4355302.998818,4126282.894095,1],    "boundingVolume": {    "region": [2.027057,0.707969,2.027208,0.708197,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1797030.b3dm"}}}