{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950546,-0.310584,0.000000,0.000000,0.173858,-0.532094,0.828643,0.000000,-0.256820,0.786000,0.562359,0.000000,-1639769.032947,5018528.637446,3566571.200340,1],    "boundingVolume": {    "region": [1.886555,0.597187,1.886653,0.597286,0.000000,13.985162]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1384933.b3dm"}}}