{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949302,-0.314367,0.000000,0.000000,0.175745,-0.530701,0.829138,0.000000,-0.260104,0.785444,0.561626,0.000000,-1660734.532700,5014965.589681,3561910.603279,1],    "boundingVolume": {    "region": [1.890536,0.596309,1.890635,0.596391,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416467.b3dm"}}}