{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949295,-0.314387,0.000000,0.000000,0.175748,-0.530671,0.829157,0.000000,-0.260127,0.785456,0.561598,0.000000,-1660882.460296,5015043.737893,3561732.794051,1],    "boundingVolume": {    "region": [1.890558,0.596275,1.890657,0.596357,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1338403.b3dm"}}}