{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858718,-0.512449,0.000000,0.000000,0.262288,-0.439520,0.859085,0.000000,-0.439459,0.736408,0.514372,0.000000,-2805416.629164,4701078.468128,3261661.031082,1],    "boundingVolume": {    "region": [2.108748,0.540212,2.108912,0.540338,0.000000,16.549433]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/6_246260.b3dm"}}}