{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950035,-0.312144,0.000000,0.000000,0.174052,-0.529741,0.830109,0.000000,-0.258570,0.786980,0.560183,0.000000,-1650930.735979,5024744.214630,3552736.882201,1],    "boundingVolume": {    "region": [1.888163,0.594541,1.888327,0.594672,0.000000,11.823777]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1377915.b3dm"}}}