{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949490,-0.313799,0.000000,0.000000,0.175403,-0.530733,0.829190,0.000000,-0.259651,0.785649,0.561549,0.000000,-1657837.391595,5016274.114817,3561420.909782,1],    "boundingVolume": {    "region": [1.889938,0.596216,1.890037,0.596298,0.000000,8.785490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1444109.b3dm"}}}