{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949881,-0.312611,0.000000,0.000000,0.174710,-0.530866,0.829251,0.000000,-0.258687,0.786032,0.561458,0.000000,-1651685.252588,5018718.558072,3560839.434865,1],    "boundingVolume": {    "region": [1.888651,0.596044,1.888822,0.596249,0.000000,21.806790]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1434820.b3dm"}}}