{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949878,-0.312620,0.000000,0.000000,0.174631,-0.530607,0.829434,0.000000,-0.258752,0.786204,0.561187,0.000000,-1652101.046141,5019808.237046,3559121.723204,1],    "boundingVolume": {    "region": [1.888670,0.595735,1.888823,0.595904,0.000000,16.978513]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1352909.b3dm"}}}