{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897476,-0.441063,0.000000,0.000000,0.283258,-0.576374,0.766524,0.000000,-0.337146,0.686026,0.644749,0.000000,-2153364.870630,4381667.193638,4090462.013226,1],    "boundingVolume": {    "region": [2.027516,0.700660,2.027643,0.700729,0.000000,11.875168]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/8_858875.b3dm"}}}