{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950284,-0.311383,0.000000,0.000000,0.173698,-0.530094,0.829958,0.000000,-0.257893,0.787041,0.560408,0.000000,-1646607.180340,5025142.695658,3554169.821503,1],    "boundingVolume": {    "region": [1.887395,0.594820,1.887494,0.594937,0.000000,8.725957]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/5_1451973.b3dm"}}}