{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949467,-0.313867,0.000000,0.000000,0.175318,-0.530349,0.829454,0.000000,-0.259790,0.785883,0.561157,0.000000,-1658727.110082,5017759.746356,3558929.720696,1],    "boundingVolume": {    "region": [1.890010,0.595742,1.890108,0.595824,0.000000,8.430198]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1363721.b3dm"}}}