{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950528,-0.310637,0.000000,0.000000,0.173733,-0.531610,0.828980,0.000000,-0.256969,0.786308,0.561860,0.000000,-1640719.850384,5020486.107956,3563398.986678,1],    "boundingVolume": {    "region": [1.886611,0.596584,1.886709,0.596682,0.000000,15.223519]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1393384.b3dm"}}}