{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898098,-0.439796,0.000000,0.000000,0.284309,-0.580580,0.762952,0.000000,-0.334599,0.683277,0.648980,0.000000,-2137135.517853,4364192.529947,4117384.270569,1],    "boundingVolume": {    "region": [2.026102,0.706132,2.026234,0.706355,0.000000,15.709792]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1821218.b3dm"}}}