{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950569,-0.310513,0.000000,0.000000,0.173722,-0.531814,0.828851,0.000000,-0.256826,0.786218,0.562052,0.000000,-1639804.220270,5019915.950570,3564615.303697,1],    "boundingVolume": {    "region": [1.886480,0.596815,1.886578,0.596914,0.000000,5.889164]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1327207.b3dm"}}}