{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950332,-0.311238,0.000000,0.000000,0.174010,-0.531322,0.829106,0.000000,-0.257505,0.786266,0.561673,0.000000,-1644141.991633,5020216.594351,3562209.191022,1],    "boundingVolume": {    "region": [1.887216,0.596314,1.887367,0.596499,0.000000,8.765474]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1331248.b3dm"}}}