{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897739,-0.440529,0.000000,0.000000,0.282876,-0.576463,0.766597,0.000000,-0.336770,0.686293,0.644661,0.000000,-2150961.700997,4383371.521745,4089904.126489,1],    "boundingVolume": {    "region": [2.026921,0.700545,2.027047,0.700614,0.000000,50.720461]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/7_857856.b3dm"}}}