{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896508,-0.443027,0.000000,0.000000,0.282967,-0.572612,0.769445,0.000000,-0.339948,0.687918,0.641252,0.000000,-2171225.479020,4393688.991046,4068214.278123,1],    "boundingVolume": {    "region": [2.029677,0.696072,2.029860,0.696185,0.000000,49.342115]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/6_507504.b3dm"}}}