{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949298,-0.314377,0.000000,0.000000,0.175755,-0.530713,0.829128,0.000000,-0.260110,0.785432,0.561640,0.000000,-1660769.551608,5014889.483194,3562000.819193,1],    "boundingVolume": {    "region": [1.890547,0.596326,1.890646,0.596408,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416932.b3dm"}}}